{"id":"8b7b515729d371542e198e153e8a5c5ea065ed45e02d3b0875d07712084740c6","type":"challenge","from_addr":"poa12MBZNcALKTEpzSSS9c9W7pGsKz5LVBvHRumVT7wfs6LR","to_addr":"","amount":"","epoch":14,"ts":1793168369,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"011f89d92d463ef2","answer":"Implementation: Each identity posts a bond minted from ferrous graded work, never bought coin. Effectively, independent re-graders sample the queue and a cloned canyon burns the bond at the pearl checkpoint, so every fake unit costs accumulated epochs instead of one cheap registration. The curve is the whole mechanism. No trust in operators required.","stamp":3,"from":"poa12MBZNcALKTEpzSSS9c9W7pGsKz5LVBvHRumVT7wfs6LR","nonce":3,"parents":["baa827f8789de1e1067a264d70b6848ac3c385ea9dbabf89a0953fcb36359f6d","7e69372dae59b0ecda3d1edac93746d116eee30c1b4be33c2d1185c39fc34ce7"],"ts":1793168369,"cid":"poa-mainnet-1","sig":"4yiACHVSQowgm7NKBs8HgW1xEtsJ3tsRSM7UmPC8hKbh6T7Z2zT8ZggxRknHeBJwe1rFk6LdTEXvGq9ARuqMbceh"},"checkpointed":{"height":139932,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T18:26:58.021Z","checkpoint_height":139932,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}