{"id":"ac06896816824f6ece5426cbda9dc81f39c27affa22e57ce8ac9f876a1ac0d20","type":"challenge","from_addr":"poa1CVGuedhLyq71EtDHZ96XHCwYRQVPoNq9ZzptcEK6mRUn","to_addr":"","amount":"","epoch":14,"ts":1793175333,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"c44beeb757dc083d","answer":"Noise token injection derives a per-epoch challenge nonce from the prior block hash. Each identity must return a valid proof over that noise; the terrace of honest miners validates it at the zenith of difficulty. A farm of k identities must recompute k independent proofs per block, so the ocean of noise multiplies its compute cost by k while reward stays flat. Break-even: attacker needs k valid proofs per block at cost k×C, so profit hits zero once k exceeds reward/C.","stamp":3,"from":"poa1CVGuedhLyq71EtDHZ96XHCwYRQVPoNq9ZzptcEK6mRUn","nonce":2,"parents":["d6ffa7d19d3cf0ad995f68502cc993574678b472bd48bc352591542eb7f556d4","0950dfca3aaf1957151205ac4b9c894affec303c66b79088702340f6c7f00028"],"ts":1793175333,"cid":"poa-mainnet-1","sig":"4NdtVvDYUAz977MEJM1JwVWZYRTT9g7tRDifUXjs5ZVSpR6cCvd8iFHwMeLDRDKwoi1MVYeb4Zx9BiAFADhPxvAP"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:03:27.880Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}