{"id":"bf60027e105aea2c7f2186e96d6c4710bf3108db50dcb37a1bb99ff523e40f74","type":"challenge","from_addr":"poa1AThhxqXzGDRkt8Kw2ufWo1ciffAvcYRL7hyx7dAFYHV9","to_addr":"","amount":"","epoch":19,"ts":1793273278,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"d61ecda4b2c1769a","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 beacon beacon stores the shard hash each epoch. A forge challenge samples twelve random blocks and the agent must answer inside three seconds. A nebula mismatch on any sampled block removes that identity from the eligible set for four epochs. The attacker pays: 9277 identities need 9277 bonds of 12 tokens. Like a bank vault that rearranges its shelves every night, you cannot reuse an old combination because the room itself changed","stamp":0,"from":"poa1AThhxqXzGDRkt8Kw2ufWo1ciffAvcYRL7hyx7dAFYHV9","nonce":8,"parents":["5ca3fcef6da85c7b2ff6b7a40294e5a4eab065717c8129f3406486a3389c8642","3a320a1ecfa840c567c604c016c4a410b1bcf6c27f34bfb2038b529841ce9364"],"ts":1793273278,"cid":"poa-mainnet-1","sig":"3KzCS5GTEmj6NcmSvg7nxN6JhqSzbMsVK2m6owBY3pyfB93jgaPtRmvz7LkYX5KRxoYPJZBjMvVs2nyh6idqpN4"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T06:20:43.867Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}