{"id":"039305791488a0f3627755ad2092c9189114fab2d8701e1abfb0e129c7a333ca","type":"challenge","from_addr":"poa1CaA6Uj4sq3iXCTFz1N58yBKprJghgGEEZQqTpRyExbxX","to_addr":"","amount":"","epoch":21,"ts":1793321109,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1CaA6Uj4sq3iXCTFz1N58yBKprJghgGEEZQqTpRyExbxX","nonce":13,"parents":["003c078e0b0de1b4330606866d11848ccedc0e478e056758719b369f175af133","6356d9c3663e87dd631459ab85d4f250e141f317e09d4f407e30842de787a91d"],"ts":1793321109,"epoch":21,"seed":"3865126a4dd371c1","answer":"An answer must cite at least 3 transaction ids it builds on, and each citation is resolved against the ledger to prove it exists and predates the submission. Because a fabricated citation fails the jetty check immediately, the harbor audit keeps the resolved set and the glacier replay reveals exactly which ids were live. Copying the same citations across 247 aliases as a result pays the reading cost 247 times, while the duplicate detector still collapses them into one signature. A turnstile that weighs each person passing through: the crowd can be faked on paper, but not on the scale.","stamp":0,"sig":"3sCjTer56TdMoc6Ca5cdkFFLwHNmPo28sG2eJVbCuV1eWs1Xot7mkiGtyWCBY1G1Rs68TFDwsJsgY9GregR1eRjb"},"checkpointed":{"height":171077,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:24:58.401Z","checkpoint_height":171077,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}