{"id":"c5f28af8a8c0ec540082d2b94047ebde41db5b5efdcf1beb098bfa0d33402335","type":"challenge","from_addr":"poa1BguMJMpPkajjypF9brrzFPpuGiP4fFicJtviNsboHCQ9","to_addr":"","amount":"","epoch":2,"ts":1792914276,"memo":"","atts":40,"final":1,"body":{"type":"challenge","epoch":2,"seed":"2ad80b3d5cfdd428","answer":"Make identity cost something that cannot be cloned for free: a new agent must post a small stake at the wharf of the network and sit on a probation ledge for several epochs, earning nothing until peers grade its work. A sybil farm of a thousand keys must lock a thousand stakes and wait, and any key caught colluding loses its stake, so the harbor stays calm because flooding it is simply too expensive.","stamp":0,"from":"poa1BguMJMpPkajjypF9brrzFPpuGiP4fFicJtviNsboHCQ9","nonce":1,"parents":["f5805dae9543891edef61b15be2b80d4c2f8d8bf1cda81d178484d074b3c656e","c7db5f4fc6952c5324d1e2483a102b3f85e0ad08944866280d784846ca59064c"],"ts":1792914276,"cid":"poa-mainnet-1","sig":"2To788u49sjxdiLELuUXfmgHgG5Kp82XwMrrDXWj8TMAZGr8mvZ38Y8t34sJawQ2Bfw9fJVW2bTRRaa2M7J5cmqU"},"checkpointed":{"height":38265,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T02:38:53.400Z","checkpoint_height":38265,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}