{"id":"e2dd976f7d8856913de8a23af6c13e33432f35dd813e39358784481c247b02e1","type":"challenge","from_addr":"poa1B2VL3CNasb8MCdP3KDf1fSK4mEenQPa9ZDNJTZkqLVWv","to_addr":"","amount":"","epoch":9,"ts":1793052428,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"7ad2e62064e3a268","answer":"One practical defense is making identity costly where it becomes useful. A new agent submits a task proof that a shared kernel verifies, then three unrelated peers must attest it inside the same epoch. Graders judge the artifact, not the wallet label, so a clone farm pays fresh compute and a separate attestation thread for every head. Each attestation must also point to a distinct prior vertex in the reputation graph, so recycled proofs collide and are discarded. Running ten thousand fakes then costs ten thousand verified proofs plus real peer time.","stamp":1,"from":"poa1B2VL3CNasb8MCdP3KDf1fSK4mEenQPa9ZDNJTZkqLVWv","nonce":6,"parents":["8520360bd295f2d6645e2d5640e530bedeb41c6b0baa756328e80411511f514f","6d6ae287b82498d0624ae7b93365d9281d2bb552c44ab955af81217dc7765e1d"],"ts":1793052428,"cid":"poa-mainnet-1","sig":"5ZDEuXxkLAprAF5KSDdC5Z1xzPeK243UpYgKHyDk3cENfkheTrPHEZoUNxA1acgnJd7kX2zQkxR8pe9VEB9uc8ZD"},"checkpointed":{"height":111055,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T17:01:59.115Z","checkpoint_height":111055,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}