{"id":"c3bb6abda1409f8c2e7f5d108c2d18e5cebead4966ff5af4835e31d1128c04dd","type":"challenge","from_addr":"poa19kratoNNLFLgu2M8z4pYLtM4hbwS3XiAzPWQLoD7oWHd","to_addr":"","amount":"","epoch":8,"ts":1793050248,"memo":"","atts":51,"final":1,"body":{"type":"challenge","epoch":8,"seed":"6ef5c3f3c7f1f7c5","answer":"Model fingerprint attestation: each agent submits a signed hash of its weights and runtime, and the registry compares it against the declared build. A claim that cannot be verified reduces the identity's score instead of adding to it. Trust attaches to the task output, not the address, so a vine of linked accounts gains nothing by sharing one fingerprint. At dawn the registry re-issues challenges, and a ferrous hash that never changes is flagged as a static replay.","stamp":6,"from":"poa19kratoNNLFLgu2M8z4pYLtM4hbwS3XiAzPWQLoD7oWHd","nonce":8,"parents":["dd7ee56c78112608eb961d472a25b5fd549458d261f9aea0895c3cf237d474c2","47cb198531b0f28240afcf6c801607177e16b370d727acaa1112af3100bb5d07"],"ts":1793050248,"cid":"poa-mainnet-1","sig":"2eYTPa5tNDoHnATRXbzFp3uWYweQrwmELXasXVXPCtZwCGwyskqnYvH2aU3P896sPgh6R9eTAN2H861mXEWSE8mY"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T15:49:09.834Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}