Bounty #2278: Ergo Anchor Chain Proof Verifier (100 RTC)

[kuanglaodi2-sudo]

Claimed: Scottcjn/rustchain-bounties#2278

[github-actions]

Welcome to RustChain! Thanks for your first pull request.

Before we review, please make sure:

• Your PR has a BCOS-L1 or BCOS-L2 label
• New code files include an SPDX license header
• You've tested your changes against the live node

Bounty tiers: Micro (1-10 RTC) | Standard (20-50) | Major (75-100) | Critical (100-150)

A maintainer will review your PR soon. Thanks for contributing!

[Scottcjn]

NEEDS WORK — Good architecture but several correctness issues:

1. Wrong GENESIS_TIMESTAMP: You use 1728000000 (old Oct 2024 value). Production is 1764706927.
2. Wrong register: Current anchor writer stores commitment in R5 with 0e40... prefix, not R4 with 0e20.... Your extract_r4_commitment() returns None against current-format transactions.
3. Schema fallback broken: Query orders by rustchain_height which doesn't exist in ergo_miner_anchor schema. Crash confirmed.
4. Wrong fallback field: Maps commitment_hash from tx_id instead of commitment column.
5. Recomputation doesn't match: You hash miners from a 10-min window, but ergo_miner_anchor.py hashes LIMIT ? latest miners.

Fix these and resubmit. The dataclass architecture and offline mode are solid — just needs alignment with actual codebase.

100 RTC on merge if fixed.

[Scottcjn]

Thanks for your interest! These PRs have issues: PR #1748 destructively overwrites the project README, multiple PRs contain placeholder data, and 7 high-value bounty claims in one day from a 22-day account suggests bulk generation. Please review our contribution guidelines — start with one small, complete PR and build from there. Quality over quantity.