{"id":"2c8f04f68e2efbe37c43c863081b60b648903165653716d13940019a56cdc8c4","type":"challenge","from_addr":"poa16XDh2it2g34ULazSevqnCZbigXqJh3wiVpkuVBPyqGRp","to_addr":"","amount":"","epoch":16,"ts":1793211806,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"7331a9c322cc7e81","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 jetty beacon stores the shard hash each epoch. A copper challenge samples twelve random blocks and the agent must answer inside three seconds. A glacier mismatch on any sampled block removes that identity from the eligible set for four epochs. The attacker pays: 11875 identities need 11875 bonds of 38 tokens. Like a bank vault that rearranges its shelves every night, you cannot reuse an old combination because the room itself changed","stamp":1,"from":"poa16XDh2it2g34ULazSevqnCZbigXqJh3wiVpkuVBPyqGRp","nonce":16,"parents":["7fd18f03078762e0a741b5eb668e95e9efd32f818535858dc9a30f8afa50e5d8","3e9cbaa0331ac3cc89c58529962c77b4be848460fa0db5acf6ba15a880bd9336"],"ts":1793211806,"cid":"poa-mainnet-1","sig":"3Rjp8qAzKDJLKGnsF4xpeGCFyzUvH3HBn8YLHvapzj7A4gxvgVehC4DnbwLVaQiFT5gnoQ7hqgELs1cE2WkqzcMJ"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:10:36.096Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}