fix: accept KZG proof mismatches when blob API has valid proofs #53
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Post-Fulu, beacon nodes may return invalid/zeroed KZG proofs (0xc0...) for blob sidecars while the blob archiver computes and stores valid proofs. This caused false validation errors. Changes: - Add verifyKZGProofs() to cryptographically validate KZG proofs - Accept data mismatches when only KZG fields differ and blob API proofs are valid - Reject data when blob API proofs are invalid or non-KZG fields differ - Add comprehensive tests for KZG validation scenarios This fixes validator errors for slots around the Fulu fork while maintaining data integrity checks.
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✅ Heimdall Review Status
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henridevieux
approved these changes
Nov 7, 2025
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Post-Fulu, beacon nodes may return invalid/zeroed KZG proofs (0xc0...) for blob sidecars while the blob archiver computes and stores valid proofs. This caused false validation errors.
Changes:
This fixes validator errors for slots around the Fulu fork while maintaining data integrity checks.