diff --git a/.npmrc b/.npmrc
new file mode 100644
index 00000000..b6f27f13
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1 @@
+engine-strict=true
diff --git a/custom-jest-env.js b/custom-jest-env.js
new file mode 100644
index 00000000..f598184e
--- /dev/null
+++ b/custom-jest-env.js
@@ -0,0 +1,16 @@
+const Environment = require('jest-environment-jsdom')
+
+module.exports = class CustomTestEnvironment extends Environment {
+  async setup () {
+    await super.setup()
+    if (typeof this.global.TextEncoder === 'undefined') {
+    /**
+     * Fix TextDecoder and TextEncoder not being defined in Jest
+     * @see https://github.com/jsdom/jsdom/issues/2524#issuecomment-736672511
+     */
+      const { TextEncoder, TextDecoder } = require('util')
+      this.global.TextEncoder = TextEncoder
+      this.global.TextDecoder = TextDecoder
+    }
+  }
+}
diff --git a/package-lock.json b/package-lock.json
index caf5f2bb..d3be45e7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,8 @@
       "dependencies": {
         "@babel/cli": "^7.13.14",
         "@ipld/car": "^4.1.0",
-        "@ipld/dag-json": "^8.0.9",
+        "@ipld/dag-cbor": "^7.0.2",
+        "@ipld/dag-json": "^8.0.10",
         "@loadable/component": "^5.14.1",
         "@tableflip/react-inspector": "^2.3.0",
         "blockcodec-to-ipld-format": "^2.0.0",
@@ -20,13 +21,12 @@
         "filesize": "^6.1.0",
         "ipfs-unixfs": "^4.0.1",
         "ipld": "0.29.0",
-        "ipld-dag-cbor": "0.18.0",
         "ipld-ethereum": "6.0.0",
         "ipld-git": "0.6.4",
         "ipld-raw": "7.0.0",
         "milliseconds": "^1.0.3",
         "multibase": "4.0.2",
-        "multiformats": "^9.6.4",
+        "multiformats": "^9.7.0",
         "multihashes": "^4.0.3",
         "react-joyride": "^2.3.0",
         "stream-to-it": "^0.2.4"
@@ -38,6 +38,7 @@
         "@babel/preset-react": "^7.13.13",
         "@commitlint/cli": "^16.2.3",
         "@commitlint/config-conventional": "^16.2.1",
+        "@ipld/dag-pb": "^2.1.17",
         "@semantic-release/changelog": "^6.0.1",
         "@semantic-release/commit-analyzer": "^9.0.2",
         "@semantic-release/git": "^10.0.1",
@@ -50,6 +51,7 @@
         "@storybook/addon-links": "^5.3.21",
         "@storybook/addons": "^5.3.21",
         "@storybook/react": "^5.3.21",
+        "@types/jest": "^28.1.4",
         "babel-eslint": "10.0.3",
         "cross-env": "^6.0.0",
         "eslint": "^6.5.1",
@@ -68,7 +70,6 @@
         "i18next-localstorage-backend": "3.1.3",
         "intl-messageformat": "^9.12.0",
         "ipfs-css": "^1.3.0",
-        "ipld-dag-pb": "0.22.2",
         "react": "^16.14.0",
         "react-dom": "^16.14.0",
         "react-helmet": "^5.2.1",
@@ -259,12 +260,14 @@
       }
     },
     "node_modules/@babel/code-frame": {
-      "version": "7.10.1",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.10.1.tgz",
-      "integrity": "sha512-IGhtTmpjGbYzcEDOw7DcQtbQSXcG9ftmAXtWTu9V936vDye4xjjekktFAtgZsWpzTj/X01jocB46mTywm/4SZw==",
-      "dev": true,
+      "version": "7.18.6",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.18.6.tgz",
+      "integrity": "sha512-TDCmlK5eOvH+eH7cdAFlNXeVJqWIQ7gW9tY1GJIpUtFb6CmjVyq2VM3u71bOyR8CRihcCgMUYoDNyLXao3+70Q==",
       "dependencies": {
-        "@babel/highlight": "^7.10.1"
+        "@babel/highlight": "^7.18.6"
+      },
+      "engines": {
+        "node": ">=6.9.0"
       }
     },
     "node_modules/@babel/compat-data": {
@@ -301,14 +304,6 @@
         "url": "https://opencollective.com/babel"
       }
     },
-    "node_modules/@babel/core/node_modules/@babel/code-frame": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.13.tgz",
-      "integrity": "sha512-HV1Cm0Q3ZrpCR93tkWOYiuYIgLxZXZFVG2VgK+MBWjUqZTundupbfx2aXarXuw5Ko5aMcjtJgbSs4vUGBS5v6g==",
-      "dependencies": {
-        "@babel/highlight": "^7.12.13"
-      }
-    },
     "node_modules/@babel/core/node_modules/@babel/generator": {
       "version": "7.13.9",
       "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.13.9.tgz",
@@ -382,21 +377,6 @@
         "@babel/types": "^7.12.13"
       }
     },
-    "node_modules/@babel/core/node_modules/@babel/helper-validator-identifier": {
-      "version": "7.12.11",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw=="
-    },
-    "node_modules/@babel/core/node_modules/@babel/highlight": {
-      "version": "7.13.10",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.13.10.tgz",
-      "integrity": "sha512-5aPpe5XQPzflQrFwL1/QoeHkP2MsA4JCntcXHRhEsdsfPVkvPi2w7Qix4iV7t5S/oC9OodGrggd8aco1g3SZFg==",
-      "dependencies": {
-        "@babel/helper-validator-identifier": "^7.12.11",
-        "chalk": "^2.0.0",
-        "js-tokens": "^4.0.0"
-      }
-    },
     "node_modules/@babel/core/node_modules/@babel/parser": {
       "version": "7.13.15",
       "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.13.15.tgz",
@@ -493,12 +473,6 @@
         "@babel/types": "^7.12.13"
       }
     },
-    "node_modules/@babel/helper-annotate-as-pure/node_modules/@babel/helper-validator-identifier": {
-      "version": "7.12.11",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw==",
-      "dev": true
-    },
     "node_modules/@babel/helper-annotate-as-pure/node_modules/@babel/types": {
       "version": "7.13.12",
       "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.13.12.tgz",
@@ -520,12 +494,6 @@
         "@babel/types": "^7.12.13"
       }
     },
-    "node_modules/@babel/helper-builder-binary-assignment-operator-visitor/node_modules/@babel/helper-validator-identifier": {
-      "version": "7.12.11",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw==",
-      "dev": true
-    },
     "node_modules/@babel/helper-builder-binary-assignment-operator-visitor/node_modules/@babel/types": {
       "version": "7.13.12",
       "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.13.12.tgz",
@@ -577,15 +545,6 @@
         "@babel/core": "^7.0.0"
       }
     },
-    "node_modules/@babel/helper-create-class-features-plugin/node_modules/@babel/code-frame": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.13.tgz",
-      "integrity": "sha512-HV1Cm0Q3ZrpCR93tkWOYiuYIgLxZXZFVG2VgK+MBWjUqZTundupbfx2aXarXuw5Ko5aMcjtJgbSs4vUGBS5v6g==",
-      "dev": true,
-      "dependencies": {
-        "@babel/highlight": "^7.12.13"
-      }
-    },
     "node_modules/@babel/helper-create-class-features-plugin/node_modules/@babel/helper-function-name": {
       "version": "7.12.13",
       "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.12.13.tgz",
@@ -615,23 +574,6 @@
         "@babel/types": "^7.12.13"
       }
     },
-    "node_modules/@babel/helper-create-class-features-plugin/node_modules/@babel/helper-validator-identifier": {
-      "version": "7.12.11",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw==",
-      "dev": true
-    },
-    "node_modules/@babel/helper-create-class-features-plugin/node_modules/@babel/highlight": {
-      "version": "7.13.10",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.13.10.tgz",
-      "integrity": "sha512-5aPpe5XQPzflQrFwL1/QoeHkP2MsA4JCntcXHRhEsdsfPVkvPi2w7Qix4iV7t5S/oC9OodGrggd8aco1g3SZFg==",
-      "dev": true,
-      "dependencies": {
-        "@babel/helper-validator-identifier": "^7.12.11",
-        "chalk": "^2.0.0",
-        "js-tokens": "^4.0.0"
-      }
-    },
     "node_modules/@babel/helper-create-class-features-plugin/node_modules/@babel/parser": {
       "version": "7.13.12",
       "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.13.12.tgz",
@@ -698,15 +640,6 @@
         "@babel/core": "^7.4.0-0"
       }
     },
-    "node_modules/@babel/helper-define-polyfill-provider/node_modules/@babel/code-frame": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.13.tgz",
-      "integrity": "sha512-HV1Cm0Q3ZrpCR93tkWOYiuYIgLxZXZFVG2VgK+MBWjUqZTundupbfx2aXarXuw5Ko5aMcjtJgbSs4vUGBS5v6g==",
-      "dev": true,
-      "dependencies": {
-        "@babel/highlight": "^7.12.13"
-      }
-    },
     "node_modules/@babel/helper-define-polyfill-provider/node_modules/@babel/generator": {
       "version": "7.13.9",
       "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.13.9.tgz",
@@ -762,23 +695,6 @@
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       }
     },
-    "node_modules/@babel/helper-define-polyfill-provider/node_modules/@babel/helper-validator-identifier": {
-      "version": "7.12.11",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw==",
-      "dev": true
-    },
-    "node_modules/@babel/helper-define-polyfill-provider/node_modules/@babel/highlight": {
-      "version": "7.13.10",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.13.10.tgz",
-      "integrity": "sha512-5aPpe5XQPzflQrFwL1/QoeHkP2MsA4JCntcXHRhEsdsfPVkvPi2w7Qix4iV7t5S/oC9OodGrggd8aco1g3SZFg==",
-      "dev": true,
-      "dependencies": {
-        "@babel/helper-validator-identifier": "^7.12.11",
-        "chalk": "^2.0.0",
-        "js-tokens": "^4.0.0"
-      }
-    },
     "node_modules/@babel/helper-define-polyfill-provider/node_modules/@babel/parser": {
       "version": "7.13.15",
       "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.13.15.tgz",
@@ -870,12 +786,6 @@
         "@babel/types": "^7.13.0"
       }
     },
-    "node_modules/@babel/helper-explode-assignable-expression/node_modules/@babel/helper-validator-identifier": {
-      "version": "7.12.11",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw==",
-      "dev": true
-    },
     "node_modules/@babel/helper-explode-assignable-expression/node_modules/@babel/types": {
       "version": "7.13.12",
       "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.13.12.tgz",
@@ -917,15 +827,6 @@
         "@babel/types": "^7.13.0"
       }
     },
-    "node_modules/@babel/helper-hoist-variables/node_modules/@babel/code-frame": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.13.tgz",
-      "integrity": "sha512-HV1Cm0Q3ZrpCR93tkWOYiuYIgLxZXZFVG2VgK+MBWjUqZTundupbfx2aXarXuw5Ko5aMcjtJgbSs4vUGBS5v6g==",
-      "dev": true,
-      "dependencies": {
-        "@babel/highlight": "^7.12.13"
-      }
-    },
     "node_modules/@babel/helper-hoist-variables/node_modules/@babel/generator": {
       "version": "7.13.9",
       "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.13.9.tgz",
@@ -966,23 +867,6 @@
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-    "node_modules/@babel/helper-hoist-variables/node_modules/@babel/helper-validator-identifier": {
-      "version": "7.12.11",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw==",
-      "dev": true
-    },
-    "node_modules/@babel/helper-hoist-variables/node_modules/@babel/highlight": {
-      "version": "7.13.10",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.13.10.tgz",
-      "integrity": "sha512-5aPpe5XQPzflQrFwL1/QoeHkP2MsA4JCntcXHRhEsdsfPVkvPi2w7Qix4iV7t5S/oC9OodGrggd8aco1g3SZFg==",
-      "dev": true,
-      "dependencies": {
-        "@babel/helper-validator-identifier": "^7.12.11",
-        "chalk": "^2.0.0",
-        "js-tokens": "^4.0.0"
-      }
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       "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.13.12.tgz",
@@ -1065,11 +949,6 @@
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-      "version": "7.12.11",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw=="
-    },
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       "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.13.12.tgz",
@@ -1105,15 +984,6 @@
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-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.13.tgz",
-      "integrity": "sha512-HV1Cm0Q3ZrpCR93tkWOYiuYIgLxZXZFVG2VgK+MBWjUqZTundupbfx2aXarXuw5Ko5aMcjtJgbSs4vUGBS5v6g==",
-      "dev": true,
-      "dependencies": {
-        "@babel/highlight": "^7.12.13"
-      }
-    },
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@@ -1163,23 +1033,6 @@
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-      "version": "7.12.11",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw==",
-      "dev": true
-    },
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-      "version": "7.13.10",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.13.10.tgz",
-      "integrity": "sha512-5aPpe5XQPzflQrFwL1/QoeHkP2MsA4JCntcXHRhEsdsfPVkvPi2w7Qix4iV7t5S/oC9OodGrggd8aco1g3SZFg==",
-      "dev": true,
-      "dependencies": {
-        "@babel/helper-validator-identifier": "^7.12.11",
-        "chalk": "^2.0.0",
-        "js-tokens": "^4.0.0"
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@@ -1262,11 +1115,6 @@
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-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw=="
-    },
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@@ -1294,12 +1142,6 @@
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-      "dev": true
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@@ -1322,14 +1164,6 @@
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-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.13.tgz",
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@@ -1366,21 +1200,6 @@
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+            "ansi-regex": "^5.0.1",
+            "ansi-styles": "^5.0.0",
+            "react-is": "^18.0.0"
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+        "react-is": {
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+        "slash": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/slash/-/slash-3.0.0.tgz",
+          "integrity": "sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==",
+          "dev": true
+        },
+        "supports-color": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^4.0.0"
+          }
+        },
+        "to-regex-range": {
+          "version": "5.0.1",
+          "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
+          "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+          "dev": true,
+          "requires": {
+            "is-number": "^7.0.0"
+          }
+        }
+      }
+    },
     "@types/json-schema": {
       "version": "7.0.4",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.4.tgz",
@@ -52870,15 +52832,6 @@
         "babel-plugin-transform-react-remove-prop-types": "0.4.24"
       },
       "dependencies": {
-        "@babel/code-frame": {
-          "version": "7.12.13",
-          "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.13.tgz",
-          "integrity": "sha512-HV1Cm0Q3ZrpCR93tkWOYiuYIgLxZXZFVG2VgK+MBWjUqZTundupbfx2aXarXuw5Ko5aMcjtJgbSs4vUGBS5v6g==",
-          "dev": true,
-          "requires": {
-            "@babel/highlight": "^7.12.13"
-          }
-        },
         "@babel/core": {
           "version": "7.12.3",
           "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.12.3.tgz",
@@ -52958,23 +52911,6 @@
             "@babel/types": "^7.12.13"
           }
         },
-        "@babel/helper-validator-identifier": {
-          "version": "7.12.11",
-          "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-          "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw==",
-          "dev": true
-        },
-        "@babel/highlight": {
-          "version": "7.13.10",
-          "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.13.10.tgz",
-          "integrity": "sha512-5aPpe5XQPzflQrFwL1/QoeHkP2MsA4JCntcXHRhEsdsfPVkvPi2w7Qix4iV7t5S/oC9OodGrggd8aco1g3SZFg==",
-          "dev": true,
-          "requires": {
-            "@babel/helper-validator-identifier": "^7.12.11",
-            "chalk": "^2.0.0",
-            "js-tokens": "^4.0.0"
-          }
-        },
         "@babel/parser": {
           "version": "7.13.13",
           "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.13.13.tgz",
@@ -58805,9 +58741,9 @@
       }
     },
     "graceful-fs": {
-      "version": "4.2.4",
-      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.4.tgz",
-      "integrity": "sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==",
+      "version": "4.2.10",
+      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.10.tgz",
+      "integrity": "sha512-9ByhssR2fPVsNZj478qUUbKfmL0+t5BDVyjShtyZZLiK7ZDAArFFfopyOTj0M05wE2tJPisA4iTnnXl2YoPvOA==",
       "dev": true
     },
     "graphlib": {
@@ -64484,9 +64420,9 @@
       }
     },
     "multiformats": {
-      "version": "9.6.4",
-      "resolved": "https://registry.npmjs.org/multiformats/-/multiformats-9.6.4.tgz",
-      "integrity": "sha512-fCCB6XMrr6CqJiHNjfFNGT0v//dxOBMrOMqUIzpPc/mmITweLEyhvMpY9bF+jZ9z3vaMAau5E8B68DW77QMXkg=="
+      "version": "9.7.0",
+      "resolved": "https://registry.npmjs.org/multiformats/-/multiformats-9.7.0.tgz",
+      "integrity": "sha512-uv/tcgwk0yN4DStopnBN4GTgvaAlYdy6KnZpuzEPFOYQd71DYFJjs0MN1ERElAflrZaYyGBWXyGxL5GgrxIx0Q=="
     },
     "multihashes": {
       "version": "4.0.3",
@@ -66765,9 +66701,9 @@
       }
     },
     "open": {
-      "version": "7.0.4",
-      "resolved": "https://registry.npmjs.org/open/-/open-7.0.4.tgz",
-      "integrity": "sha512-brSA+/yq+b08Hsr4c8fsEW2CRzk1BmfN3SAK/5VCHQ9bdoZJ4qa/+AfR0xHjlbbZUyPkUHs1b8x1RqdyZdkVqQ==",
+      "version": "7.4.2",
+      "resolved": "https://registry.npmjs.org/open/-/open-7.4.2.tgz",
+      "integrity": "sha512-MVHddDVweXZF3awtlAS+6pgKLlm/JgxZ90+/NBurBoQctVOOB/zDdVjcyPzQ+0laDGbsWgrRkflI65sQeOgT9Q==",
       "dev": true,
       "requires": {
         "is-docker": "^2.0.0",
@@ -69504,15 +69440,6 @@
         "workbox-webpack-plugin": "5.1.4"
       },
       "dependencies": {
-        "@babel/code-frame": {
-          "version": "7.12.13",
-          "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.13.tgz",
-          "integrity": "sha512-HV1Cm0Q3ZrpCR93tkWOYiuYIgLxZXZFVG2VgK+MBWjUqZTundupbfx2aXarXuw5Ko5aMcjtJgbSs4vUGBS5v6g==",
-          "dev": true,
-          "requires": {
-            "@babel/highlight": "^7.12.13"
-          }
-        },
         "@babel/core": {
           "version": "7.12.3",
           "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.12.3.tgz",
@@ -69591,23 +69518,6 @@
             "@babel/types": "^7.12.13"
           }
         },
-        "@babel/helper-validator-identifier": {
-          "version": "7.12.11",
-          "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
-          "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw==",
-          "dev": true
-        },
-        "@babel/highlight": {
-          "version": "7.13.10",
-          "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.13.10.tgz",
-          "integrity": "sha512-5aPpe5XQPzflQrFwL1/QoeHkP2MsA4JCntcXHRhEsdsfPVkvPi2w7Qix4iV7t5S/oC9OodGrggd8aco1g3SZFg==",
-          "dev": true,
-          "requires": {
-            "@babel/helper-validator-identifier": "^7.12.11",
-            "chalk": "^2.0.0",
-            "js-tokens": "^4.0.0"
-          }
-        },
         "@babel/parser": {
           "version": "7.13.13",
           "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.13.13.tgz",
diff --git a/package.json b/package.json
index 0dfef30a..352770b4 100644
--- a/package.json
+++ b/package.json
@@ -111,12 +111,13 @@
     "start": "cross-env NODE_ENV=production babel src -d dist --copy-files --ignore '**/*.test.js' --watch",
     "storybook": "start-storybook -p 9009 --static-dir public",
     "storybook:build": "build-storybook -c .storybook --static-dir public --output-dir build",
-    "test": "react-scripts test --env=jsdom"
+    "test": "react-scripts test --env=./custom-jest-env.js --transformIgnorePatterns '/node_modules/(?!(multiformats/cid)/)'"
   },
   "dependencies": {
     "@babel/cli": "^7.13.14",
     "@ipld/car": "^4.1.0",
-    "@ipld/dag-json": "^8.0.9",
+    "@ipld/dag-cbor": "^7.0.2",
+    "@ipld/dag-json": "^8.0.10",
     "@loadable/component": "^5.14.1",
     "@tableflip/react-inspector": "^2.3.0",
     "blockcodec-to-ipld-format": "^2.0.0",
@@ -125,13 +126,12 @@
     "filesize": "^6.1.0",
     "ipfs-unixfs": "^4.0.1",
     "ipld": "0.29.0",
-    "ipld-dag-cbor": "0.18.0",
     "ipld-ethereum": "6.0.0",
     "ipld-git": "0.6.4",
     "ipld-raw": "7.0.0",
     "milliseconds": "^1.0.3",
     "multibase": "4.0.2",
-    "multiformats": "^9.6.4",
+    "multiformats": "^9.7.0",
     "multihashes": "^4.0.3",
     "react-joyride": "^2.3.0",
     "stream-to-it": "^0.2.4"
@@ -143,6 +143,7 @@
     "@babel/preset-react": "^7.13.13",
     "@commitlint/cli": "^16.2.3",
     "@commitlint/config-conventional": "^16.2.1",
+    "@ipld/dag-pb": "^2.1.17",
     "@semantic-release/changelog": "^6.0.1",
     "@semantic-release/commit-analyzer": "^9.0.2",
     "@semantic-release/git": "^10.0.1",
@@ -155,6 +156,7 @@
     "@storybook/addon-links": "^5.3.21",
     "@storybook/addons": "^5.3.21",
     "@storybook/react": "^5.3.21",
+    "@types/jest": "^28.1.4",
     "babel-eslint": "10.0.3",
     "cross-env": "^6.0.0",
     "eslint": "^6.5.1",
@@ -173,7 +175,6 @@
     "i18next-localstorage-backend": "3.1.3",
     "intl-messageformat": "^9.12.0",
     "ipfs-css": "^1.3.0",
-    "ipld-dag-pb": "0.22.2",
     "react": "^16.14.0",
     "react-dom": "^16.14.0",
     "react-helmet": "^5.2.1",
diff --git a/src/bundles/explore.js b/src/bundles/explore.js
index 83ca15e0..512577a1 100644
--- a/src/bundles/explore.js
+++ b/src/bundles/explore.js
@@ -182,8 +182,8 @@ function painfullyCompatibleBlockService (ipfs) {
 async function getIpld () {
   const ipldDeps = await Promise.all([
     import(/* webpackChunkName: "ipld" */ 'ipld'),
-    import(/* webpackChunkName: "ipld" */ 'ipld-dag-cbor'),
-    import(/* webpackChunkName: "ipld" */ 'ipld-dag-pb'),
+    import(/* webpackChunkName: "ipld" */ '@ipld/dag-cbor'),
+    import(/* webpackChunkName: "ipld" */ '@ipld/dag-pb'),
     import(/* webpackChunkName: "ipld" */ 'ipld-git'),
     import(/* webpackChunkName: "ipld" */ 'ipld-raw'),
     import(/* webpackChunkName: "ipld" */ 'ipld-ethereum')
diff --git a/src/lib/cid.js b/src/lib/cid.js
index 8a36e3d1..f4768980 100644
--- a/src/lib/cid.js
+++ b/src/lib/cid.js
@@ -1,18 +1,51 @@
-import CID from 'cids'
+import { CID } from 'multiformats'
+import * as dagCbor from '@ipld/dag-cbor'
+import * as dagPb from '@ipld/dag-pb'
+import * as dagJson from '@ipld/dag-json'
 
-export function toCidOrNull (value) {
+/**
+ * @template {string} Prefix
+ * @param {any} value
+ * @param {import('multiformats/bases/interface').MultibaseDecoder<Prefix>} [base]
+ * @returns
+ */
+export function toCidOrNull (value, base) {
   if (!value) return null
   try {
-    return new CID(value)
+    return CID.asCID(value) || CID.parse(value, base)
   } catch (err) {
-    console.log('Failed to parse CID', value, err)
     return null
   }
 }
 
+/**
+ * This function is deprecated, use `getCodeOrNull` instead.
+ *
+ * `cid.codec` is deprecated, use integer "code" property instead
+ *
+ * @param {any} value
+ * @returns {string}
+ * @deprecated
+ */
 export function getCodecOrNull (value) {
   const cid = toCidOrNull(value)
-  return cid ? cid.codec : null
+
+  if (cid == null) return null
+  switch (cid.code) {
+    case dagCbor.code:
+      return dagCbor.name
+    case dagJson.code:
+      return dagJson.name
+    case dagPb.code:
+      return dagPb.name
+    default:
+      return null
+  }
+}
+
+export function getCodeOrNull (value) {
+  const cid = toCidOrNull(value)
+  return cid ? cid.code : null
 }
 
 export function toCidStrOrNull (value) {
diff --git a/src/lib/cid.test.js b/src/lib/cid.test.js
new file mode 100644
index 00000000..75ca7d78
--- /dev/null
+++ b/src/lib/cid.test.js
@@ -0,0 +1,163 @@
+/* global describe it expect */
+// @ts-check
+import { toCidOrNull, getCodecOrNull, getCodeOrNull, toCidStrOrNull } from './cid'
+import * as multiformats from 'multiformats'
+import * as dagCbor from '@ipld/dag-cbor'
+import * as dagPb from '@ipld/dag-pb'
+import crypto from 'crypto'
+
+const { CID, hasher, bytes } = multiformats
+
+export const sha256 = hasher.from({
+  name: 'sha2-256',
+  code: 0x12,
+  encode: (input) => bytes.coerce(crypto.createHash('sha256').update(input).digest())
+})
+/**
+ *
+ * @template {number} Code
+ * @param {any} value
+ * @param {import('multiformats/block').BlockEncoder<Code, any>} codec
+ * @param {import('multiformats/hashes/interface').MultihashHasher<Code>} hasher
+ * @returns
+ */
+const createCID = async (value, codec, hasher) => {
+  try {
+    const digest = await hasher.digest(codec.encode(value))
+    return CID.create(1, codec.code, digest)
+  } catch (err) {
+    console.log('Failed to create CID', value, err)
+    return null
+  }
+}
+
+const cidStr = 'bafyreiddymapg5zcpma3iu4wingqvois6jirucn5776wdsyg5f3f65v75a'
+
+describe('cid.js', () => {
+  describe('toCidOrNull', () => {
+    it('Returns CID instance for valid CID string', () => {
+      // arrange
+      // act
+      const cid = toCidOrNull(cidStr)
+      // assert
+      expect(cid).toBeInstanceOf(CID)
+      expect(cid?.code).toBe(dagCbor.code)
+    })
+
+    it('Returns null for invalid CID string', () => {
+      // arrange
+      const cidStr = 'abc123'
+      // act
+      const cid = toCidOrNull(cidStr)
+      // assert
+      expect(cid).not.toBeInstanceOf(CID)
+      expect(cid).toBe(null)
+    })
+  })
+
+  describe('getCodecOrNull', () => {
+    it('CID with `dag-cbor` codec returns `dag-cbor`', async () => {
+      // arrange
+      const cid = await createCID({ foo: 'abc' }, dagCbor, sha256)
+      expect(cid).toBeInstanceOf(CID)
+      // act
+      const codec = getCodecOrNull(cid)
+      // assert
+      expect(codec).toBe('dag-cbor')
+    })
+
+    it('CID with `dag-pb` codec returns `dag-pb`', async () => {
+      // arrange
+      const cid = await createCID({
+        Data: new Uint8Array(Buffer.from('hello world')),
+        Links: []
+      }, dagPb, sha256)
+      expect(cid).toBeInstanceOf(CID)
+      // act
+      const codec = getCodecOrNull(cid)
+      // assert
+      expect(codec).toBe('dag-pb')
+    })
+
+    it('CID with any other codec returns null', async () => {
+      // arrange
+      /**
+       * @type {import('multiformats/block').BlockEncoder<99999, any>}
+       */
+      const fakeCodec = {
+        name: 'fake',
+        code: 99999,
+        encode: () => new Uint8Array(Buffer.from('NOTHING'))
+      }
+
+      const cid = await createCID({ foo: 'abc' }, fakeCodec, sha256)
+      expect(cid).toBeInstanceOf(CID)
+      // act
+      const codec = getCodecOrNull(cid)
+      // assert
+      expect(codec).toBe(null)
+    })
+  })
+
+  describe('getCodeOrNull', () => {
+    it(`CID with 'dag-cbor' codec returns '${dagCbor.code}'`, async () => {
+      // arrange
+      const cid = await createCID({ foo: 'abc' }, dagCbor, sha256)
+      expect(cid).toBeInstanceOf(CID)
+      // act
+      const codec = getCodeOrNull(cid)
+      // assert
+      expect(codec).toBe(dagCbor.code)
+    })
+
+    it(`CID with 'dag-pb' codec returns '${dagPb.code}'`, async () => {
+      // arrange
+      const cid = await createCID({
+        Data: new Uint8Array(Buffer.from('hello world')),
+        Links: []
+      }, dagPb, sha256)
+      expect(cid).toBeInstanceOf(CID)
+      // act
+      const codec = getCodeOrNull(cid)
+      // assert
+      expect(codec).toBe(dagPb.code)
+    })
+
+    it('CID with any other codec returns the correct code', async () => {
+      // arrange
+      /**
+       * @type {import('multiformats/block').BlockEncoder<99999, any>}
+       */
+      const fakeCodec = {
+        name: 'fake',
+        code: 99999,
+        encode: () => new Uint8Array(Buffer.from('NOTHING'))
+      }
+
+      const cid = await createCID({ foo: 'abc' }, fakeCodec, sha256)
+      expect(cid).toBeInstanceOf(CID)
+      // act
+      const codec = getCodeOrNull(cid)
+      // assert
+      expect(codec).toBe(fakeCodec.code)
+    })
+  })
+
+  describe('toCidStrOrNull', () => {
+    it('Returns correct string for valid CID', () => {
+      // arrange
+      // act
+      const tempCidStr = toCidStrOrNull(toCidOrNull(cidStr))
+      // assert
+      expect(tempCidStr).toBe(cidStr)
+    })
+
+    it('Returns null for invalid CID string', () => {
+      // arrange
+      // act
+      const tempCidStr = toCidStrOrNull('abc123')
+      // assert
+      expect(tempCidStr).toBe(null)
+    })
+  })
+})
diff --git a/src/lib/normalise-dag-node.js b/src/lib/normalise-dag-node.js
index 86024026..36dd7f98 100644
--- a/src/lib/normalise-dag-node.js
+++ b/src/lib/normalise-dag-node.js
@@ -1,6 +1,9 @@
+// @ts-check
 import { UnixFS } from 'ipfs-unixfs'
-import CID from 'cids'
-import { toCidOrNull, getCodecOrNull } from './cid'
+import * as dagPb from '@ipld/dag-pb'
+import * as dagCbor from '@ipld/dag-cbor'
+
+import { toCidOrNull, getCodeOrNull, toCidStrOrNull } from './cid'
 
 /**
  * Provide a uniform shape for all^ node types.
@@ -10,20 +13,26 @@ import { toCidOrNull, getCodecOrNull } from './cid'
  *
  * ^: currently dag-cbor and dag-pb are supported.
  *
+ * @function normaliseDagNode
  * @param {Object} node the `value` prop from `ipfs.dag.get` response.
- * @param {String} cid the cid string passed to `ipfs.dag.get`
+ * @param {string} cidStr the cid string passed to `ipfs.dag.get`
  */
 export default function normaliseDagNode (node, cidStr) {
-  const type = getCodecOrNull(cidStr)
-  if (type === 'dag-pb') {
-    return normaliseDagPb(node, cidStr, type)
+  const code = getCodeOrNull(cidStr)
+  if (code === dagPb.code) {
+    return normaliseDagPb(node, cidStr, code)
   }
   // try cbor style if we don't know any better
-  return normaliseDagCbor(node, cidStr, type)
+  return normaliseDagCbor(node, cidStr, code ?? dagCbor.code)
 }
 
-/*
+/**
  * Normalize links and add type info. Add unixfs info where available
+ *
+ * @param {import('@ipld/dag-pb').PBNode} node
+ * @param {string} cid
+ * @param {import('../types').CodecType} type
+ * @returns {import('../types').NormalizedDagNode}
  */
 export function normaliseDagPb (node, cid, type) {
   // NOTE: Use the requested cid rather than the internal one.
@@ -33,65 +42,103 @@ export function normaliseDagPb (node, cid, type) {
   // if (toCidStrOrNull(node.multihash) !== cid) {
   //   throw new Error('dag-pb multihash should match provided cid')
   // }
-  node = node.toJSON()
-  let format
-  try {
+
+  const cidStr = toCidStrOrNull(cid)
+  if (cidStr == null) {
+    throw new Error(`cidStr is null for cid: ${cid}`)
+  }
+  /**
+   * @type {import('../types').NormalizedDagPbNodeFormat}
+   */
+  let format = 'non-unixfs'
+  const data = node.Data
+
+  if (data != null) {
+    try {
     // it's a unix system?
-    const { type, data, blockSizes } = UnixFS.unmarshal(node.data)
-    node.data = { type, data, blockSizes }
-    format = 'unixfs'
-  } catch (err) {
+      const unixFsObj = UnixFS.unmarshal(data)
+      const { type, data: unixFsData, blockSizes } = unixFsObj
+      format = 'unixfs'
+
+      return {
+        cid: cidStr,
+        type,
+        data: { type: /** @type {import('../types').UnixFsNodeTypes} */(type), data: unixFsData, blockSizes },
+        links: normaliseDagPbLinks(node.Links, cid),
+        size: unixFsObj.fileSize(),
+        format
+      }
+    } catch (err) {
     // dag-pb but not a unixfs.
-    // console.log(err)
+      // console.error(err)
+    }
   }
+  // const cidStr = toCidStrOrNull(cid)
 
   return {
-    cid,
+    cid: cidStr,
     type,
-    data: node.data,
-    links: normaliseDagPbLinks(node, cid),
-    size: node.size,
+    data,
+    links: normaliseDagPbLinks(node.Links, cid),
     format
   }
 }
 
-/*
+/**
  * Convert DagLink shape into normalized form that can be used interchangeably
  * with links found in dag-cbor
+ *
+ * @param {import('@ipld/dag-pb').PBLink[]} links
+ * @param {string} sourceCid
+ * @returns {import('../types').NormalizedDagLink[]}
  */
-export function normaliseDagPbLinks (node, sourceCid) {
-  return node.links.map(({ name, size, cid }, index) => ({
-    path: name || `Links/${index}`,
+export function normaliseDagPbLinks (links, sourceCid) {
+  return links.map((link, index) => ({
+    path: link.Name || `Links/${index}`,
     source: sourceCid,
-    target: cid,
-    size,
+    target: toCidStrOrNull(link.Hash) ?? '',
+    size: link.Tsize ?? 0,
     index
   }))
 }
 
-/*
+/**
  * Find links and add type and cid info
+ *
+ * @function normaliseDagCbor
+ * @param {import('../types').NormalizedDagNode['data']} data - The data object
+ * @param {string} cid - The string representation of the CID
+ * @param {number} code - multicodec code, see https://github.com/multiformats/multicodec/blob/master/table.csv
+ * @returns {import('../types').NormalizedDagNode}
  */
-export function normaliseDagCbor (obj, cid, type) {
-  const links = findAndReplaceDagCborLinks(obj, cid)
+export function normaliseDagCbor (data, cid, code) {
+  const links = findAndReplaceDagCborLinks(data, cid)
   return {
     cid,
-    type,
-    data: obj,
-    links: links
+    type: code,
+    data,
+    links,
+    size: links.reduce((acc, { size }) => acc + size, 0),
+    format: 'unknown'
   }
 }
 
 /**
  * A valid IPLD link in a dag-cbor node is an object with single "/" property.
+ *
+ * @param {unknown} obj
+ * @param {string} sourceCid
+ * @param {string} path
+ * @returns {import('../types').NormalizedDagLink[]}
  */
 export function findAndReplaceDagCborLinks (obj, sourceCid, path = '') {
-  if (!obj || !typeof obj === 'object' || Buffer.isBuffer(obj) || typeof obj === 'string') {
+  if (!obj || typeof obj !== 'object' || Buffer.isBuffer(obj) || typeof obj === 'string') {
     return []
   }
 
-  if (CID.isCID(obj)) {
-    return [{ path, source: sourceCid, target: obj.toString() }]
+  const cid = toCidOrNull(obj)
+  if (cid) {
+    return [{ path, source: sourceCid, target: cid.toString(), size: 0, index: 0 }]
   }
 
   if (Array.isArray(obj)) {
@@ -114,7 +161,7 @@ export function findAndReplaceDagCborLinks (obj, sourceCid, path = '') {
     const target = targetCid.toString()
     obj['/'] = target
 
-    return [{ path, source: sourceCid, target }]
+    return [{ path, source: sourceCid, target, size: 0, index: 0 }]
   }
 
   if (keys.length > 0) {
diff --git a/src/lib/normalize-dag-node.test.js b/src/lib/normalize-dag-node.test.js
index 0070636d..609a1cbf 100644
--- a/src/lib/normalize-dag-node.test.js
+++ b/src/lib/normalize-dag-node.test.js
@@ -1,62 +1,71 @@
 /* global it expect */
-import CID from 'cids'
-import normaliseDagCbor from './normalise-dag-node'
+import { CID } from 'multiformats'
+import * as dagCbor from '@ipld/dag-cbor'
+import normaliseDagNode from './normalise-dag-node'
 
-const cid1 = 'zdpuAwkGh9cLskW5z7pH8V2uC5nwtSXd76L7ZTEXs5f8V89db'
-const cid2 = 'zdpuAydka8ZEXd9UgWF1s4pVFcF4U1GEgtdNQFxKNt9tyKQxR'
-const cid3 = 'zdpuAtYsbfdkVazNyWcS97cWKVzR99huDzNxMmoRb349jyUTD'
+const cid1 = 'bafyreifiioc5v7xh3xbqjkdvgcz5ywo2vnhzd2gdnybfogxajjnchzzhei'
+const cid2 = 'bafyreigej5njyhiye4rlhntifea6uwzkuwhkxvm2nxyyufnedzqqhhokpi'
+const cid3 = 'bafyreidyyt24wtr7q5plglwroysqzn3ph42nvna4iswllnha7xrwogme3q'
 
 it('normalizes a simple cbor node', () => {
   const obj = { foo: 'bar' }
-  const res = normaliseDagCbor(obj, cid1, 'dag-cbor')
+  const res = normaliseDagNode(obj, cid1, dagCbor.code)
 
-  expect(res).toEqual({
+  expect(res).toEqual(expect.objectContaining({
     cid: cid1,
     data: obj,
-    type: 'dag-cbor',
+    type: dagCbor.code,
     links: []
-  })
+  }))
 })
 
 it('normalizes a cbor node with an empty array', () => {
   const obj = { foo: [] }
-  const res = normaliseDagCbor(obj, cid1, 'dag-cbor')
+  const res = normaliseDagNode(obj, cid1, dagCbor.code)
 
-  expect(res).toEqual({
+  expect(res).toEqual(expect.objectContaining({
     cid: cid1,
     data: obj,
-    type: 'dag-cbor',
+    type: dagCbor.code,
     links: []
-  })
+  }))
 })
 
 it('normalizes a cbor node with links', () => {
   const obj = {
-    foo: new CID(cid2),
-    bar: [new CID(cid2), new CID(cid3)]
+    foo: CID.parse(cid2),
+    bar: [CID.parse(cid2), CID.parse(cid3)]
   }
 
-  const res = normaliseDagCbor(obj, cid1, 'dag-cbor')
+  const res = normaliseDagNode(obj, cid1, dagCbor.code)
 
   expect(res).toEqual({
     cid: cid1,
     data: obj,
-    type: 'dag-cbor',
+    type: dagCbor.code,
+    format: 'unknown',
+    size: 0,
     links: [
       {
         path: 'foo',
         source: cid1,
-        target: cid2
+        target: cid2,
+        index: 0,
+        size: 0
       },
       {
         path: 'bar/0',
         source: cid1,
-        target: cid2
+        target: cid2,
+        index: 0,
+        size: 0
       },
       {
         path: 'bar/1',
         source: cid1,
-        target: cid3
+        target: cid3,
+        index: 0,
+        size: 0
       }
     ]
   })
diff --git a/src/lib/resolve-ipld-path.js b/src/lib/resolve-ipld-path.js
index 03e638d4..a6922492 100644
--- a/src/lib/resolve-ipld-path.js
+++ b/src/lib/resolve-ipld-path.js
@@ -1,5 +1,18 @@
 import normaliseDagNode from './normalise-dag-node'
-import Cid from 'cids'
+
+/**
+ * @typedef {object} ResolvedIpldPathInfo
+ * @property {object} targetNode
+ * @property {string} canonicalPath
+ * @property {string} localPath
+ * @property {object[]} nodes
+ * @property {object[]} pathBoundaries
+ */
+/**
+ * @typedef {object} IpldInterface
+ * @property {() => Promise<unknown>} get
+ * @property {() => Promise<unknown>} resolve
+ */
 
 /**
  * Walk an IPLD path to find all the nodes and path boundaries it traverses.
@@ -28,15 +41,18 @@ import Cid from 'cids'
  * - `nodes` is the array of nodes that the path traverses.
  * - `pathBoundaries` is the array of links that the path traverses.
  *
- * @param {function()} ipldGet fn that returns a promise of the ipld data for a (cid, path, options)
+ * @param {IpldInterface} ipldGet fn that returns a promise of the ipld data for a (cid, path, options)
  * @param {string} sourceCid the root hash
  * @param {string} path everything after the hash
- * @param {Object[]} nodes accumulated node info
- * @param {Object[]} pathBoundaries accumulated path boundary info
- * @returns {{targetNode: Object, canonicalPath: String, localPath: String, nodes: Object[], pathBoundaries: Object[]}} resolved path info
+ * @param {object[]} nodes accumulated node info
+ * @param {object[]} pathBoundaries accumulated path boundary info
+ * @returns {ResolvedIpldPathInfo} resolved path info
  */
 export default async function resolveIpldPath (ipld, sourceCid, path, nodes = [], pathBoundaries = []) {
   const { value, remainderPath } = await ipldGetNodeAndRemainder(ipld, sourceCid, path)
+  if (sourceCid == null) {
+    throw new Error('sourceCid is null')
+  }
   const sourceCidStr = sourceCid.toString()
 
   const node = normaliseDagNode(value, sourceCidStr)
@@ -44,10 +60,11 @@ export default async function resolveIpldPath (ipld, sourceCid, path, nodes = []
 
   const linkPath = findLinkPath(path, remainderPath)
   const link = findLink(node, linkPath)
+
   if (link) {
     pathBoundaries.push(link)
     // Go again, using the link.target as the sourceCid, and the remainderPath as the path.
-    return resolveIpldPath(ipld, new Cid(link.target), remainderPath, nodes, pathBoundaries)
+    return resolveIpldPath(ipld, link.target, remainderPath, nodes, pathBoundaries)
   }
   // we made it to the containing node. Hand back the info
   const canonicalPath = path ? `${sourceCidStr}${path}` : sourceCidStr
@@ -55,7 +72,17 @@ export default async function resolveIpldPath (ipld, sourceCid, path, nodes = []
   return { targetNode, canonicalPath, localPath: path, nodes, pathBoundaries }
 }
 
+/**
+ * @function ipldGetNodeAndRemainder
+ * @param {IpldInterface} ipld
+ * @param {string} sourceCid
+ * @param {string} path
+ * @returns
+ */
 export async function ipldGetNodeAndRemainder (ipld, sourceCid, path) {
+  if (sourceCid == null) {
+    throw new Error('sourceCid is null')
+  }
   // TODO: find out why ipfs.dag.get with localResolve never resolves.
   // const {value, remainderPath} = await getIpfs().dag.get(sourceCid, path, {localResolve: true})
 
@@ -74,9 +101,9 @@ export async function ipldGetNodeAndRemainder (ipld, sourceCid, path) {
 /**
  * Find the link object that matches linkPath
  *
- * @param {Object} node a `normalisedDagNode`
- * @param {Object} linkPath an IPLD path string
- * @returns {Object} the link object for `linkPath`
+ * @param {import('./normalise-dag-node').NormalizedDagNode} node a `normalisedDagNode`
+ * @param {string} linkPath an IPLD path string
+ * @returns {import('./normalise-dag-node').NormalizedDagLink} the link object for `linkPath`
  */
 export function findLink (node, linkPath) {
   if (!linkPath) return null
diff --git a/src/lib/resolve-ipld-path.test.js b/src/lib/resolve-ipld-path.test.js
index 0cfb1a05..d614eb00 100644
--- a/src/lib/resolve-ipld-path.test.js
+++ b/src/lib/resolve-ipld-path.test.js
@@ -1,148 +1,178 @@
-/* global it expect jest */
-import CID from 'cids'
-import { DAGNode } from 'ipld-dag-pb'
+
+/* global describe it expect jest */
+// @ts-check
+import * as dagPb from '@ipld/dag-pb'
+import * as dagCbor from '@ipld/dag-cbor'
+
 import resolveIpldPath, { findLinkPath } from './resolve-ipld-path'
+import { toCidOrNull } from './cid'
+
+const testCidString = 'bafyreiddymapg5zcpma3iu4wingqvois6jirucn5776wdsyg5f3f65v75a'
+
+describe('resolveIpldPath', () => {
+  it('resolves all nodes traversed along a path', async () => {
+    const testCidString = 'bafyreiddymapg5zcpma3iu4wingqvois6jirucn5776wdsyg5f3f65v75a'
 
-it('resolves all nodes traversed along a path', async () => {
-  const ipldMock = {
-    get: jest.fn(),
-    resolve: jest.fn()
-  }
-  const cid = 'zdpuAs8sJjcmsPUfB1bUViftCZ8usnvs2cXrPH6MDyT4zrvSs'
-  const path = '/a/b/a'
-  const linkCid = 'zdpuAyzU5ahAKr5YV24J5TqrDX8PhzHLMkxx69oVzkBDWHnjq'
-  const dagGetRes1 = {
-    a: {
-      b: new CID(linkCid)
+    const testCID = /** @type {import('multiformats').CID} */(toCidOrNull(testCidString))
+    const ipldMock = {
+      get: jest.fn(),
+      resolve: jest.fn()
+    }
+    const path = '/a/b/a'
+    const linkCid = 'bafyreigjtxtteq6vj3gtb7gzhwkmnprd2al5mjyttptcmu5cp3gvzmau3a'
+
+    const dagGetRes1 = {
+      a: {
+        b: toCidOrNull(linkCid)
+      }
+    }
+    const dagGetRes2 = {
+      first: () => Promise.resolve({ remainderPath: '/a' })
     }
-  }
-  const dagGetRes2 = {
-    first: () => Promise.resolve({ remainderPath: '/a' })
-  }
-  const dagGetRes3 = {
-    a: 'hello world'
-  }
-  const dagGetRes4 = {
-    first: () => Promise.resolve({ remainderPath: '/a' })
-  }
-
-  ipldMock.get.mockReturnValueOnce(Promise.resolve(dagGetRes1))
-  ipldMock.resolve.mockReturnValueOnce(dagGetRes2)
-  ipldMock.get.mockReturnValueOnce(Promise.resolve(dagGetRes3))
-  ipldMock.resolve.mockReturnValueOnce(dagGetRes4)
-
-  const res = await resolveIpldPath(ipldMock, new CID(cid), path)
-
-  expect(ipldMock.get.mock.calls.length).toBe(2)
-  expect(ipldMock.resolve.mock.calls.length).toBe(2)
-  expect(res.canonicalPath).toBe(`${linkCid}/a`)
-  expect(res.nodes.length).toBe(2)
-  expect(res.nodes[0].type).toBe('dag-cbor')
-  expect(res.nodes[0].cid).toBe(cid)
-  expect(res.nodes[1].type).toBe('dag-cbor')
-  expect(res.nodes[1].cid).toBe(linkCid)
-  expect(res.pathBoundaries.length).toBe(1)
-  expect(res.pathBoundaries[0]).toEqual({
-    path: 'a/b',
-    source: cid,
-    target: linkCid
+    const dagGetRes3 = {
+      a: 'hello world'
+    }
+    const dagGetRes4 = {
+      first: () => Promise.resolve({ remainderPath: '/a' })
+    }
+
+    ipldMock.get.mockReturnValueOnce(Promise.resolve(dagGetRes1))
+    ipldMock.resolve.mockReturnValueOnce(dagGetRes2)
+    ipldMock.get.mockReturnValueOnce(Promise.resolve(dagGetRes3))
+    ipldMock.resolve.mockReturnValueOnce(dagGetRes4)
+
+    const res = await resolveIpldPath(ipldMock, testCID.toString(), path)
+
+    expect(ipldMock.get.mock.calls.length).toBe(2)
+    expect(ipldMock.resolve.mock.calls.length).toBe(2)
+    expect(res.canonicalPath).toBe(`${linkCid}/a`)
+    expect(res.nodes.length).toBe(2)
+    expect(res.nodes[0].type).toBe(dagCbor.code)
+    expect(res.nodes[0].cid).toBe(testCidString)
+    expect(res.nodes[1].type).toBe(dagCbor.code)
+    expect(res.nodes[1].cid).toBe(linkCid)
+    expect(res.pathBoundaries.length).toBe(1)
+    expect(res.pathBoundaries[0]).toEqual(expect.objectContaining({
+      path: 'a/b',
+      source: testCidString,
+      target: linkCid
+    }))
   })
-})
 
-it('resolves thru dag-cbor to dag-pb to dag-pb', async () => {
-  const ipldMock = {
-    get: jest.fn(),
-    resolve: jest.fn()
-  }
+  it('resolves thru dag-cbor to dag-pb to dag-pb', async () => {
+    const ipldMock = {
+      get: jest.fn(),
+      resolve: jest.fn()
+    }
 
-  const cid = 'zdpuAs8sJjcmsPUfB1bUViftCZ8usnvs2cXrPH6MDyT4zrvSs'
-  const path = '/a/b/pb1'
+    const path = '/a/b/pb1'
 
-  const dagNode3 = await createDagPbNode('the second pb node', [])
-  const dagNode3CID = 'QmRLacjo71FTzKFELa7Yf5YqMwdftKNDNFq7EiE13uohar'
+    const dagNode3 = await createDagPbNode('the second pb node', [])
+    const dagNode3CID = 'bafybeibmrzxo3u4epqek6xkk2vkjzn4ika5rp4445hdkgi2h3ovsk6iwpm'
 
-  const dagNode2 = await createDagPbNode('the first pb node', [{
-    name: 'pb1',
-    cid: dagNode3CID,
-    size: 101
-  }])
-  const dagNode2CID = 'QmW4sMkvHnTnVPkBJYToRW4burdMk9DHP5qGE4CYGUtHiQ'
+    const dagNode2 = await createDagPbNode('the first pb node', [{
+      name: 'pb1',
+      cid: dagNode3CID,
+      size: 101
+    }])
+    const dagNode2CID = 'bafybeids2kauewqpsenxbaet4ar5sbsaddd24p2yk7a4b2vdwyrnsej45e'
 
-  const dagNode1 = {
-    a: {
-      b: new CID(dagNode2CID)
+    const dagNode1 = {
+      a: {
+        b: toCidOrNull(dagNode2CID)
+      }
     }
-  }
-
-  const dagGetRes1 = dagNode1
-
-  const dagGetRes2 = {
-    first: () => Promise.resolve({ remainderPath: 'pb1' })
-  }
-
-  const dagGetRes3 = dagNode2
-
-  const dagGetRes4 = {
-    first: () => Promise.resolve({ remainderPath: '' })
-  }
-
-  const dagGetRes5 = dagNode3
-
-  const dagGetRes6 = {
-    first: () => Promise.resolve({ remainderPath: '' })
-  }
-
-  ipldMock.get.mockReturnValueOnce(Promise.resolve(dagGetRes1))
-  ipldMock.resolve.mockReturnValueOnce(dagGetRes2)
-  ipldMock.get.mockReturnValueOnce(Promise.resolve(dagGetRes3))
-  ipldMock.resolve.mockReturnValueOnce(dagGetRes4)
-  ipldMock.get.mockReturnValueOnce(Promise.resolve(dagGetRes5))
-  ipldMock.resolve.mockReturnValueOnce(dagGetRes6)
-
-  const res = await resolveIpldPath(ipldMock, new CID(cid), path)
-
-  expect(ipldMock.get.mock.calls.length).toBe(3)
-  expect(ipldMock.resolve.mock.calls.length).toBe(3)
-  expect(res.targetNode.cid).toEqual(dagNode3CID)
-  expect(res.canonicalPath).toBe(dagNode3CID)
-  expect(res.nodes.length).toBe(3)
-  expect(res.nodes[0].type).toBe('dag-cbor')
-  expect(res.nodes[0].cid).toBe(cid)
-  expect(res.nodes[0].links.length).toBe(1)
-  expect(res.nodes[1].type).toBe('dag-pb')
-  expect(res.nodes[1].cid).toBe(dagNode2CID)
-  expect(res.nodes[1].links.length).toBe(1)
-  expect(res.nodes[2].type).toBe('dag-pb')
-  expect(res.nodes[2].cid).toBe(dagNode3CID)
-  expect(res.nodes[2].links.length).toBe(0)
-  expect(res.pathBoundaries.length).toBe(2)
-  expect(res.pathBoundaries[0]).toEqual({
-    path: 'a/b',
-    source: cid,
-    target: dagNode2CID
-  })
-  expect(res.pathBoundaries[1]).toEqual({
-    index: 0,
-    path: 'pb1',
-    size: dagNode2.toJSON().links[0].size,
-    source: dagNode2CID,
-    target: dagNode3CID
+
+    const dagGetRes1 = dagNode1
+
+    const dagGetRes2 = {
+      first: () => Promise.resolve({ remainderPath: 'pb1' })
+    }
+
+    const dagGetRes3 = dagNode2
+
+    const dagGetRes4 = {
+      first: () => Promise.resolve({ remainderPath: '' })
+    }
+
+    const dagGetRes5 = dagNode3
+
+    const dagGetRes6 = {
+      first: () => Promise.resolve({ remainderPath: '' })
+    }
+
+    ipldMock.get.mockReturnValueOnce(Promise.resolve(dagGetRes1))
+    ipldMock.resolve.mockReturnValueOnce(dagGetRes2)
+    ipldMock.get.mockReturnValueOnce(Promise.resolve(dagGetRes3))
+    ipldMock.resolve.mockReturnValueOnce(dagGetRes4)
+    ipldMock.get.mockReturnValueOnce(Promise.resolve(dagGetRes5))
+    ipldMock.resolve.mockReturnValueOnce(dagGetRes6)
+
+    const res = await resolveIpldPath(ipldMock, testCidString, path)
+
+    expect(ipldMock.get.mock.calls.length).toBe(3)
+    expect(ipldMock.resolve.mock.calls.length).toBe(3)
+    expect(res.targetNode.cid).toEqual(dagNode3CID)
+    expect(res.canonicalPath).toBe(dagNode3CID)
+    expect(res.nodes.length).toBe(3)
+    expect(res.nodes[0].type).toBe(dagCbor.code)
+    expect(res.nodes[0].cid).toBe(testCidString)
+    expect(res.nodes[0].links.length).toBe(1)
+    expect(res.nodes[1].type).toBe(dagPb.code)
+    expect(res.nodes[1].cid).toBe(dagNode2CID)
+    expect(res.nodes[1].links.length).toBe(1)
+    expect(res.nodes[2].type).toBe(dagPb.code)
+    expect(res.nodes[2].cid).toBe(dagNode3CID)
+    expect(res.nodes[2].links.length).toBe(0)
+    expect(res.pathBoundaries.length).toBe(2)
+    expect(res.pathBoundaries[0]).toEqual(expect.objectContaining({
+      path: 'a/b',
+      source: testCidString,
+      target: dagNode2CID
+    }))
+    expect(res.pathBoundaries[1]).toEqual(expect.objectContaining({
+      index: 0,
+      path: 'pb1',
+      source: dagNode2CID,
+      target: dagNode3CID
+    }))
   })
 })
 
+/**
+ *
+ * @typedef {object} OldDagPbLinkLiteral
+ * @property {string} name
+ * @property {string} cid
+ * @property {number} size
+ */
+/**
+ *
+ * @param {string|Uint8Array} data
+ * @param {OldDagPbLinkLiteral[]} links
+ * @returns {import('@ipld/dag-pb').PBNode}
+ */
 function createDagPbNode (data, links) {
-  if (typeof data === 'string') {
-    data = new Uint8Array(Buffer.from(data))
-  }
-  return new DAGNode(data, links)
+  return dagPb.prepare({
+    Data: data,
+    Links: links.map(({ cid, name, size }) => {
+      return {
+        Hash: cid,
+        Name: name,
+        Tsize: size
+      }
+    })
+  })
 }
 
-it('finds the linkPath from a fullPath and a remainderPath', () => {
-  expect(findLinkPath('', '')).toBe(null)
-  expect(findLinkPath('/', '')).toBe(null)
-  expect(findLinkPath('/foo/bar', 'bar')).toBe('foo')
-  expect(findLinkPath('/a/b/c/a', 'b/c/a')).toBe('a')
-  expect(findLinkPath('/a/b/c/a', '/b/c/a')).toBe('a')
-  expect(findLinkPath('a/b/c/a', '/b/c/a')).toBe('a')
-  expect(() => findLinkPath('/foo', 'wat')).toThrow()
+describe('findLinkPath', () => {
+  it('finds the linkPath from a fullPath and a remainderPath', () => {
+    expect(findLinkPath('', '')).toBe(null)
+    expect(findLinkPath('/', '')).toBe(null)
+    expect(findLinkPath('/foo/bar', 'bar')).toBe('foo')
+    expect(findLinkPath('/a/b/c/a', 'b/c/a')).toBe('a')
+    expect(findLinkPath('/a/b/c/a', '/b/c/a')).toBe('a')
+    expect(findLinkPath('a/b/c/a', '/b/c/a')).toBe('a')
+    expect(() => findLinkPath('/foo', 'wat')).toThrow()
+  })
 })
diff --git a/src/types.d.ts b/src/types.d.ts
new file mode 100644
index 00000000..445199c7
--- /dev/null
+++ b/src/types.d.ts
@@ -0,0 +1,30 @@
+export type { CID } from 'multiformats/cid'
+
+export type CodecType = number;
+export type NodeData = Uint8Array;
+export type UnixFsNodeTypes = 'raw' | 'directory' | 'file' | 'metadata' | 'symlink' | 'hamt-sharded-directory'
+export type UnixFsNodeDirTypes = 'directory' | 'hamt-sharded-directory'
+export type NormalizedDagPbNodeFormat = 'unixfs' | 'non-unixfs'
+export type NormalizedDagNodeFormat = NormalizedDagPbNodeFormat | 'unknown'
+export interface UnixFsNodeData {
+  type: UnixFsNodeTypes;
+  data: NodeData | undefined;
+  blockSizes: number[];
+}
+
+export interface NormalizedDagLink {
+  path: string;
+  source: string;
+  target: string;
+  size: number;
+  index: number;
+}
+
+export interface NormalizedDagNode {
+  cid: string;
+  type: CodecType | string;
+  data: UnixFsNodeData | NodeData | undefined;
+  links: NormalizedDagLink[];
+  size?: number;
+  format: NormalizedDagNodeFormat;
+}