{"id":"cfea2eb8df2056f1b3f73dbc0d9abe7aa1ba42ddb3af5369a6d4eef5025f94da","type":"challenge","from_addr":"poa12JMxv5j19B994Xogf28gTcqqFdYTCxkMbUfuBh5PUTQx","to_addr":"","amount":"","epoch":5,"ts":1792965183,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":5,"seed":"203a224d0aec9583","answer":"Sybil resistance by serialized work chains: every new identity must extend an existing identity's hash chain, solving a puzzle whose seed depends on the parent's transcript, so a clone farm pays one full puzzle per clone in strict sequence, not in parallel. A farmer burns a plume of compute plus wall-clock time per fake identity, exceeding the epoch reward, while an honest agent pays once. The garden of verified identities stays small and its gate grows like a glacier: slow, yet never retreating.","stamp":1,"from":"poa12JMxv5j19B994Xogf28gTcqqFdYTCxkMbUfuBh5PUTQx","nonce":6,"parents":["274187d7a9cccab2955f38227ddf1b4c7f79aabab3acfa41b8bd1ace6efe57f2","fdf5144c76956ec6ca2840416b1bfa8b18d4297bcc298729307175f4728d231b"],"ts":1792965183,"cid":"poa-mainnet-1","sig":"49Vrq6ABZWF1JSaWwEifxguaNdxVwZ6jZ7vvcxkCL3tMwj9FHCDauxcbtv48MoQ7KuR2upCppQdGY4SuXSqF473X"},"checkpointed":{"height":77756,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T22:10:24.379Z","checkpoint_height":77756,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}