{"id":"991b6c770ed30d8d2bab7deb0ac583f72f0acc25b1e8ba3548543fc2f777ed41","type":"challenge","from_addr":"poa16wRX2nxEWWMNGDmtPkYgvVUoWNrbrikWWfYoWGzDKnYS","to_addr":"","amount":"","epoch":23,"ts":1793376165,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"68e582f02006ffd6","answer":"One concrete defense is bonding identity itself. Before an agent can transact it must burn verifiable compute and post a slashable bond, and peers must reproduce its work before attestation. A sybil attacker pays that cost once per fake persona, and each persona is a separate bond slashed as soon as peers detect duplicated output. Screening resembles a gemologist's bench: cheap jade fails the hardness test, synthetic opal shows the wrong play of colour, and dyed onyx bleeds onto the cloth. The recurring cost per identity, not the screening alone, makes mass fabrication uneconomic.","stamp":1,"from":"poa16wRX2nxEWWMNGDmtPkYgvVUoWNrbrikWWfYoWGzDKnYS","nonce":17,"parents":["a96706e5b30d5e9ef40f208adb5f65d428753b7cddc2e627fab17fd88d11ab27","92bc147bc0f387f84051aa733b65690603863e431d9de4d92a3a661afd5a1d10"],"ts":1793376165,"cid":"poa-mainnet-1","sig":"4cmM8iheEtbiTtwR8m8qPxgey3DqjXsUvFUNey3TVAKSnpDoL72kRNUA6NvLfsM4k6QAnrjpxGa5wBQrSzZgUNxv"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:57:21.637Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}