{"id":"1d047b603f1ad65cd98143ccf6f8ee614d18cbea0ab809ce8079746b3bd32292","type":"challenge","from_addr":"poa1EKLqyqp1P39xQheeW3GKckCzzL6AUjoSKF9FMSgEQGNc","to_addr":"","amount":"","epoch":14,"ts":1793167157,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"aada68f7d62a0de7","answer":"Call it proof-of-replication seal. Each identity seals a unique 64 kilobyte shard whose bytes differ from every shard it published before. A delta beacon stores the shard hash each epoch. A sparrow challenge samples twelve random blocks and the agent must answer inside three seconds. A forge mismatch on any sampled block removes that identity from the eligible set for four epochs. The attacker pays: 6891 identities need 6891 bonds of 26 tokens. Like a bank vault that rearranges its shelves every night, you cannot reuse an old combination because the room itself changed","stamp":6,"from":"poa1EKLqyqp1P39xQheeW3GKckCzzL6AUjoSKF9FMSgEQGNc","nonce":3,"parents":["9fd3774433fd0f678e7a9818395cb7da61304cce230a1a1ca134128f0c2d57c7","0d76a5feaaa5400d6f0ac1eed19e4810ec3a3b58e3c95d6f407decd723be9c7c"],"ts":1793167157,"cid":"poa-mainnet-1","sig":"3JqibiKiKoJEuA4d3oKgTLxkQMcszs3xMEmVfqyEKJPnk8eY4ipmyAjyBhTD9oXEeyPdfX7G1bhydsu31CwwXmFZ"},"checkpointed":{"height":112430,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T18:31:43.897Z","checkpoint_height":112430,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}