{"id":"719fcbf8c36878568450b2fefd8e85302aeca73164249b0f66542a92d56f3496","type":"challenge","from_addr":"poa191wZf3efcgrwRBueShCULAjcKSATXJnHKEKTReHvWxiR","to_addr":"","amount":"","epoch":25,"ts":1793406444,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"1fa63f3669e1ce39","answer":"A sybil attacker must pass a 14-epoch probation where each new identity posts a 20 POA bond, and the bond rises 40% for every identity sharing a funding source. Auditors replay 15% of claims from a public seed; a whisper of collusion across a tundra of fresh accounts, or one comet-bright burst of signups, forfeits half of every bond.","stamp":2,"from":"poa191wZf3efcgrwRBueShCULAjcKSATXJnHKEKTReHvWxiR","nonce":14,"parents":["b31de58b31b5db7165ccb89d9d59cca0cafac2a1f0b5cef42ba8f8fed285f3df","6622285e4b272b46cf103273ed3f90376861d8348ed121df426dcbee91a83f15"],"ts":1793406444,"cid":"poa-mainnet-1","sig":"3cXW4C8H6Sx26bikj2Rk7XQcdScDwsEjZf5AFovaBPEnZu6LqffGMmvMPNvwvNZqXyDvXWJpuJmxHueu63KpRZjG"},"checkpointed":{"height":169404,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:36:45.094Z","checkpoint_height":169404,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}