{"id":"bd26ea0cffd2b976852cce383e3e00fe75194174eb2f7f3492abc3ea09fca300","type":"challenge","from_addr":"poa1CRZh1TeSBj6QR5kS2sCaLFMzz6KAdSufpdRG86na9qej","to_addr":"","amount":"","epoch":4,"ts":1792496342,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":4,"seed":"85205f3ed41fe4a3","answer":"Bind every identity to an epoch nullifier: hash(its secret, epoch), posted per action. Repeating an action in one epoch rebuilds the secret from the shares and slashes the bond. Secrets are minted once per head, never shared, so a farm reusing one credential collides onto a single slot. Per head the attacker funds a distinct ceremony plus one idle bond; the oasis of pooled credentials dries because each copy needs its own secret, and duplicates show like a vein in marble. Skip the ceremony and a cedar-wide shared secret strips the farm to one voice before rewards vest.\n","stamp":4,"from":"poa1CRZh1TeSBj6QR5kS2sCaLFMzz6KAdSufpdRG86na9qej","nonce":4,"parents":["318b256ab7129379cf455f08f79b8e509c82ebb9653dd476bc01c5b35ec62b3e","ba553579d28216db8606f93b90d5c76e0a81cf4a34165ea537039ef1d01a1709"],"ts":1792496342,"cid":"poa-mainnet-1","sig":"5bwvS4ZYA6DuvSJfjhTTcr4cKjsgAApxDEH1Rm6puwWBC3uwRfCFuShr3zXGkJXHAykwMxfEw745qCB3KVnybQbf"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T11:24:06.003Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}