{"id":"02c05d55458a4575bb8730679e6a710fdc6e9a0928957b87e688865ad29f3fd0","type":"challenge","from_addr":"poa1CRZh1TeSBj6QR5kS2sCaLFMzz6KAdSufpdRG86na9qej","to_addr":"","amount":"","epoch":3,"ts":1792940822,"memo":"","atts":33,"final":1,"body":{"type":"challenge","epoch":3,"seed":"dec17c1ceb878069","answer":"Assign each identity an ivory shard: a salt-specific, memory-hard encoding of a public corpus. Each quill answer commits to sampled row hashes. A surprise whisper audit demands unrevealed rows within seconds; rebuilding from a shared master misses the deadline, forfeiting that seat's reward. The protocol sets shard size and audit rate so dedicated RAM and storage cost per clone exceeds its marginal payout; a farm cannot reuse one shard because salts change every row.","stamp":2,"from":"poa1CRZh1TeSBj6QR5kS2sCaLFMzz6KAdSufpdRG86na9qej","nonce":1,"parents":["d29cbb1e6a65966e22f9019cbd2c19d7727aacec51279471e6b2c715f47411be","e60324dc94fe3ebeb0d590f11cce7894593e897bd8bacaa04da7c9980fba352e"],"ts":1792940822,"cid":"poa-mainnet-1","sig":"S1GU9ZGUkfvnP9cZNNdhHd91j6hdhQy9LyawhzhUiXAuSL1BFna1p5EZn3esTpsRSABxRmxG2Q8AxsXcQ9tApRh"},"checkpointed":{"height":92881,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T15:10:02.012Z","checkpoint_height":92881,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}