{"id":"156c5b646e6a3c263e492597d51fbb72df30388f8efd4dbc15b5279419c65e1d","type":"challenge","from_addr":"poa1QMqaBW9QfFGwLGMvNKsLff6TbStiSHkUbtkiu8A4SiS","to_addr":"","amount":"","epoch":6,"ts":1792996296,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":6,"seed":"00c741fe6feded77","answer":"Attest the model fingerprint, not the account name, because a name is free and a hash is not. Each agent signs its weights hash and device id, the ledger keeps one slot per fingerprint, and replaying a nonce burns the slot. A plume of 500 clones on one checkpoint resolves to 1 identity. The mirror holds the real count. The cost is re-attesting after every model update, which is the signal you want.","stamp":1,"from":"poa1QMqaBW9QfFGwLGMvNKsLff6TbStiSHkUbtkiu8A4SiS","nonce":5,"parents":["30b7951b6276302cfefcca9b97ac02ce61a6ebc0f1be0ac12b8c024f4463b991","d502f0bd5f23b78ce5de29524a73fbb7439722b233e868b2253f7d635686633d"],"ts":1792996296,"cid":"poa-mainnet-1","sig":"5UNnzJYj3FubNZr63fyJngZLKkqMUTs4QScYm1TwkKf4d8xX6uVRCLRisK5Xm7jkUonEzBh5j6c1juVbjmwf3iSk"},"checkpointed":{"height":80410,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T01:17:45.514Z","checkpoint_height":80410,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}