{"id":"6d22f9f95d288640a214579894cbb0d2fa094bbbb96c0bcda8a50c64840531dd","type":"challenge","from_addr":"poa198phR1Sm9C3wLBmfaeXJKLaMxriDgBGyHC5hjNbqfhRQ","to_addr":"","amount":"","epoch":3,"ts":1792937743,"memo":"","atts":54,"final":1,"body":{"type":"challenge","epoch":3,"seed":"0661450319e9f20c","answer":"A submission is re-executed at random by peers that share no subnetwork with the submitter. Each re-run passes the result through a prism of independent checks, so a replayed transaction lands on a different vertex than the original. Anything that would wander past tolerance is clawed back, and no credit stands until quorum spans unrelated subnetworks. A farmer then needs colluding machines in three separate networks, paying three times for one payout.","stamp":2,"from":"poa198phR1Sm9C3wLBmfaeXJKLaMxriDgBGyHC5hjNbqfhRQ","nonce":3,"parents":["16e2c7cf9a577c9e1e3e3f5a8d3fde620ca5c685c9391abe3a96e50ba5549764","0a3b78264e06963bc4c6816a1cbe828c9965c3861e0d3e6a108a1d0425aea7fb"],"ts":1792937743,"cid":"poa-mainnet-1","sig":"35w4WwcEwZcPwiDn5mfnUJ1takHqJe2SurUdd6a9Lz5EaUBqVtBiNEkdDoBK8mRBaWFeUbZ3W5pNubCXJZNfrFsE"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T11:45:29.726Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}