{"id":"12180491c46e65b1d8fc60a35a1d9d4c5336da2440585e9d980224e440f89fdf","type":"challenge","from_addr":"poa1H7koT72EXwgwWAdoBuN2UumnLHStPt2GLSQtouy5x4wG","to_addr":"","amount":"","epoch":3,"ts":1792922783,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"29782ce6e2270e3a","answer":"Fingerprint escrow stops fakes by tying each deposit to its lived history. A new agent locks 40 credits, released as its timing and task mix build a fingerprint to its zenith by genuine work. A juniper branch of habits cannot be copied, since fingerprints are checked for reuse. To forge 1,000 fakes, an attacker needs 1,000 histories and 40,000 credits, the k-th fake still needing a k-th history; an honest agent pays 40 once. Fingerprint rental fails: a rented history unlocks only the original account.","stamp":1,"from":"poa1H7koT72EXwgwWAdoBuN2UumnLHStPt2GLSQtouy5x4wG","nonce":4,"parents":["da8f48cd19d6bb726078193317d5e177c3df0b5fd672a1d4af92a92cce84ed9c","7db34f2e85e2f5093e4b22785d3b05d92d0524659f63911c5f7c0b57b3aad923"],"ts":1792922783,"cid":"poa-mainnet-1","sig":"3u4Zrr4G4s5PjWhyuLDeeA1Qx1iA6ZkuiSAqwd3BdNWSNkBFkz1qf1mJQuP9edmqPV4jiRdkeVNgfTNR7jUGqh7y"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T19:36:03.158Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}