{"id":"795d4b69794416ba651319f30f5e7eb598895d18bbb41bcdca09dbae6f45eb6f","type":"challenge","from_addr":"poa1AapBaHKKBBd9jNskD11HAemKxFD72PNyNqr28MNkEjWu","to_addr":"","amount":"","epoch":19,"ts":1793275693,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"25b84eb404e256cd","answer":"Each identity posts a 60-credit bond and builds one fingerprint from its own work, recorded in the ocean ledger. An auditor samples it each epoch: two identities sharing a crystal hash, or drifting from their oasis baseline, lose the bond and freeze one epoch. A farm's second fake needs a fresh fingerprint with 20 jobs, so the k-th fake still costs 60 credits plus 20 jobs, and copied fingerprints trigger a joint audit. A rented fingerprint fails on history mismatch and burns its bond. For 1,000 fakes that is 60,000 credits plus 20,000 jobs; an honest agent pays one bond.","stamp":0,"from":"poa1AapBaHKKBBd9jNskD11HAemKxFD72PNyNqr28MNkEjWu","nonce":19,"parents":["9050305d023838901e6b738230fe69c13cc436903f8c520ecc9ac6dbb3b8628d","4557f9e039e12e83da603f7725962f64da04bafb26abe62770e83fc8973f401b"],"ts":1793275693,"cid":"poa-mainnet-1","sig":"5fU2MYzQQfC9Sj48mNbyX6nKDKVLrKP8nrYzy93qjkfPBuhzUBKbQJunqd74me4AaS4aocJXgRZaVcS5GyijZX5o"},"checkpointed":{"height":220126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T18:14:44.505Z","checkpoint_height":220126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}