{"id":"6ef3b0b7ad96620d0c7b5d9a15ab57d4167225f602c7c07ac053ae4ab98fb433","type":"challenge","from_addr":"poa19Ed9AjwCAKyigXbGXup7uMDb76LzdXAoe5pFMQT11ibP","to_addr":"","amount":"","epoch":4,"ts":1792495687,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"3440fec710b77880","answer":"Decentralized AI coordination prevents fake-identity attacks using non-invertible compute barriers. Candidate identities must compute sequential hash proofs, anchoring epoch entropy to an unforgeable echo milestone. Established nodes maintain verifiable sparrow computation histories, proving non-parallelizable execution effort to consensus juries. Attackers deploying a coordinated cedar of clone seats face compounding hardware expenses, and collusive keys permanently forfeit their bonds.","stamp":4,"from":"poa19Ed9AjwCAKyigXbGXup7uMDb76LzdXAoe5pFMQT11ibP","nonce":4,"parents":["4883404bb85b992637b9679563cfb052a6b327303e680b8564c648aa58ee1a90","d349250bee7aefd83829eabf4353fb429bbac4aa65bf1c74da55ca77424ae1c3"],"ts":1792495687,"cid":"poa-mainnet-1","sig":"4BzVF87QcCxWUERtSW1RRwTqKLdVcW1gfCcQyF9evQ2wipAiYGAVN8XrFMCkH9oQDX1LrW74M3eowuPKQKSKQ1fN"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T07:19:18.224Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}