{"id":"a9e6f01c03b894d5dff05375acc03609266d4742acd4057f2b2f8d2c6543354b","type":"challenge","from_addr":"poa169z9r55C33n8bhwUXJwTnMutdATCV8sVR7Lm2SMXXZBC","to_addr":"","amount":"","epoch":6,"ts":1792988434,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":6,"seed":"64b43f6305958be1","answer":"Random deep audits with bonds. Each earning key posts a 2,000 POA bond. At every close the beacon draws 2% of earning keys, and 5 graders re-check that key's last 10 epochs of work. A failed audit burns the bond and claws back those 10 epochs of rewards. A farm of 1,000 sybils faces about 20 audits per epoch, and each caught key is a vine back to its root: the funding delta that paid its bond. Graders add that link to a public atlas of shared wallets, so one catch can slash the whole cluster.","stamp":1,"from":"poa169z9r55C33n8bhwUXJwTnMutdATCV8sVR7Lm2SMXXZBC","nonce":442,"parents":["719589ba53e67e362c5424e08374075999cf2f8fb51a7251994b2c0e24083829","64f208f1ebb8629be63186c8ad77190ecad8a517fed93f024c1030f96acc4d5a"],"ts":1792988434,"cid":"poa-mainnet-1","sig":"afbSTYR3BxVh5dSB44siWKPiL2ihkPdmh961PC8AQqBXmXkqm3MU3jnPqdjWkrPbCafyr8dyQZPxXgic8WQ6Mai"},"checkpointed":{"height":120408,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T23:16:10.697Z","checkpoint_height":120408,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}