Add generator identity docs from github

docs/chia-blockchain/resources/generator-identity/analysis.md

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+---
+title: Generator Identity Analysis
+slug: /chia-blockchain/resources/generator-identity/analysis
+---
+
+This document has been abridged. The original, complete version can be found on [GitHub](https://github.com/richardkiss/generator-identity-hf-analysis).
+
+# Generator Identity Hard Fork: Analysis
+
+This is an analysis of the Generator Identity Hard Fork, which transitions generator identity and cost calculation from serialization-based to content-addressable methods.
+
+## Overview
+
+The Generator Identity Hard Fork makes two fundamental changes:
+
+| Aspect         | Before                     | After                    |
+| -------------- | -------------------------- | ------------------------ |
+| **Identity**   | `SHA256(serialized_bytes)` | `SHA256_tree_hash(tree)` |
+| **Cost basis** | Serialized length          | Interned tree structure  |
+
+This decouples consensus from serialization format, enabling future compression improvements without hard forks.
+
+## Documentation
+
+| Document                                                                                             | Description                                                                                       |
+| ---------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------- |
+| **[Technical Specification](/chia-blockchain/resources/generator-identity/technical-specification)** | Complete design: problem statement, cost formula derivation, DoS analysis, implementation details |
+| **[Gist](/chia-blockchain/resources/generator-identity/github-gist)**                                | GitHub Gist describing the proposal                                                               |
+| [GitHub repository](https://github.com/richardkiss/generator-identity-hf-analysis)                   | Contains the complete analysis and implementation                                                 |
+
+## Implementation PRs
+
+| PR     | Repository                                         | Branch                  | Description                            |
+| ------ | -------------------------------------------------- | ----------------------- | -------------------------------------- |
+| **#1** | [clvm_rs](https://github.com/Chia-Network/clvm_rs) | `generator-identity-hf` | Core interning infrastructure          |
+| **#2** | [chia_rs](https://github.com/Chia-Network/chia_rs) | `generator-identity-hf` | Chia-specific cost calculation         |
+| **#3** | [clvm_rs](https://github.com/Chia-Network/clvm_rs) | `serde_2026`            | New serialization format (future work) |
+
+PR #2 depends on PR #1. PR #3 is independent.