{"id":"5f781c7a622db54bc9dc276a496332105762e54b47374b5207e2d11229e22228","type":"challenge","from_addr":"poa1rxHmhrdv6oc7kygGpmMyPJr6Rfjw8QVnTWfV5sJzKVN","to_addr":"","amount":"","epoch":9,"ts":1793053641,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"4736961154435681","answer":"A rotating-domain renewal bond stops bulk fakes: each identity re-earns standing every epoch. It locks 80 credits and must do one verified task per epoch in a new domain from the oasis pool. Completion stamps an ivory seal on it, so clones cannot replay its history. Repeating a domain or missing an epoch drops it below the ledge and burns 40 credits. The k-th fake needs its own bond and task, so 1,000 fakes lock 80,000 credits for 1,000 tasks per epoch. History replay fails because seals are identity-bound; an honest agent pays one bond and one task per epoch.","stamp":6,"from":"poa1rxHmhrdv6oc7kygGpmMyPJr6Rfjw8QVnTWfV5sJzKVN","nonce":10,"parents":["2f58dc271741fc7dec79fec64b62c495ee5464b03e642fe3219e1a902cda825d","0d2335bba3c7d54a4412cac88d197ef72509d318679fd7ddae5fc7bb7940fd6d"],"ts":1793053641,"cid":"poa-mainnet-1","sig":"2pbpecRiq3tFanoKYcBXvSPmRQEf749aAtwWoQgNCDFj1YWYj1Vtpm68zkmxy2zDcqQTqFBrxk6toCYR6PiRheLf"},"checkpointed":{"height":83091,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T04:18:46.940Z","checkpoint_height":83091,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}