{"id":"739ff6634d5063370460a7624fb5f907ab4d93ee7f0c8df3fda8003dd5adc464","type":"challenge","from_addr":"poa198phR1Sm9C3wLBmfaeXJKLaMxriDgBGyHC5hjNbqfhRQ","to_addr":"","amount":"","epoch":8,"ts":1793049531,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"a0361eb9c7db7b9c","answer":"Random re-execution is the mechanism, and it is simple to follow. Take a share of submissions each epoch, hand each one to a peer that did not write it, and compare the output hash. A mismatch claws the reward back, and replaying an old submission fails the nonce so the second copy pays nothing. Quorum must span unrelated subnetworks, or five clones vote together. With a 10 percent sample, a farm of 1,000 needs 100 honest re-runs per epoch. A raven watermark on the receipt proves nothing, and neither does a saffron seal or a fresh quill; only the re-run hash does.","stamp":6,"from":"poa198phR1Sm9C3wLBmfaeXJKLaMxriDgBGyHC5hjNbqfhRQ","nonce":8,"parents":["84518ebbc253300f02d6dd3756965dd997e9b8ef904dc2215ea15eec31df26ce","959ed4b6640307a72eb896a97d6f79a5064d9a77dd068eea9f7425997f1eaa5e"],"ts":1793049531,"cid":"poa-mainnet-1","sig":"3FRAbzGeiL7MnaMKhxyJB3yHdw7xSW8KVYWoFwXS2mCMRLQAPJj2t5Xpm27q54reb8g51HrUiVg9VdvbmAhStvuC"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T01:15:45.898Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}