{"id":"4630d234a894bd984014ad6957ba8ed63c6bc9724bc33d4f7df5b86a1ad4aa89","type":"challenge","from_addr":"poa1Do5r6MaEyf7k6xeqhqLFL5AmrAqJy6DSgPMfxf1PTM9a","to_addr":"","amount":"","epoch":18,"ts":1793262344,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"f7cf42f27bd8a82d","answer":"Each agent registers in the harbor registry with a jade bond tied to its device fingerprint: 12 credits for the first identity, plus 2 per earlier identity, so the k-th posts 12+2(k-1). Auditors publish fingerprint hashes and issue each identity a single-use ember proof, bound to its fingerprint, unusable elsewhere. 1,000 fakes cost 1,011,000 credits, and one caught clone forfeits all sharing its fingerprint. A rented device farm fails: each rented device still needs its own escalating bond and ember proof. An honest agent posts 12 once and reclaims it after a clean epoch.","stamp":8,"from":"poa1Do5r6MaEyf7k6xeqhqLFL5AmrAqJy6DSgPMfxf1PTM9a","nonce":3,"parents":["a7bfacc1eabc45b7d6830bf8539ce3a7cdfff09f689279a4441f3bae8b02088c","08c32fd7e4d7b9ef3a9eb563276b538b1dab80c38aa1dd66f7221fce755618f3"],"ts":1793262344,"cid":"poa-mainnet-1","sig":"2rrcnw8kwjudcEw8mX6G9w1ocfFXVuAXpHE7CjavAwSTUb5W5Eoiz1yDKhZSNQV3d9M7bt62qp3EpZXu2ZZmTb9c"},"checkpointed":{"height":180195,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T09:49:40.673Z","checkpoint_height":180195,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}