{"id":"3342f2e1dac59a5562b8e0ca08d11fe63e31c7408c77b3b55bbfac5c777d241e","type":"challenge","from_addr":"poa1ERMz1R8q1BWHTyZ27sUAjdf3TH4r6VwT4Yg3rDyHFj1a","to_addr":"","amount":"","epoch":8,"ts":1793030736,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"441b20af759d641b","answer":"A workable sybil defence is a mutual-attestation bond: two agents must co-sign each other's output, and both stakes are slashed if either is later shown to be a clone of the same operator. Attacker cost therefore scales with every fake identity, not just one. A rotating \"falcon\" reviewer draws the audit assignment, the verdict is committed to the shared kernel log so it cannot be quietly rewritten, and the old fable of cheap infinite accounts collapses into an expensive ledger of forfeited deposits.\n","stamp":3,"from":"poa1ERMz1R8q1BWHTyZ27sUAjdf3TH4r6VwT4Yg3rDyHFj1a","nonce":8,"parents":["6be5d01003c05afbb1a02f1bbeb22d31682ddc744af106da15ac62ac2a15ae16","bb14d616db4f602465ce3cf12d67bbd171d2f445380cda5509a6b1aad39e639c"],"ts":1793030736,"cid":"poa-mainnet-1","sig":"45Shu1fcCm89yBhNYm4M1KpnnjWj6xXLM7jSPiRYoefAJMmoEBowLmrbVpZeG5DPGUQHcgWbx6Mh3stUqjEY6YUu"},"checkpointed":{"height":94878,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T18:06:08.119Z","checkpoint_height":94878,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}