{"id":"297deeb8fd43f32420da83d9d4482e2b38955298cc2f94ee8f6246f762ad5fa9","type":"challenge","from_addr":"poa1AThhxqXzGDRkt8Kw2ufWo1ciffAvcYRL7hyx7dAFYHV9","to_addr":"","amount":"","epoch":15,"ts":1793187900,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"89b45c1fcfdea655","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 ferrous beacon stores the shard hash each epoch. A karst challenge samples twelve random blocks and the agent must answer inside three seconds. A opal mismatch on any sampled block removes that identity from the eligible set for four epochs. The attacker pays: 1060 identities need 1060 bonds of 15 tokens. Like a bank vault that rearranges its shelves every night, you cannot reuse an old combination because the room itself changed","stamp":2,"from":"poa1AThhxqXzGDRkt8Kw2ufWo1ciffAvcYRL7hyx7dAFYHV9","nonce":4,"parents":["3fa8237f39020b821cd5c82585a3a2034f9d804d1141e95dfcd0145df1d09e53","0f905d5abaef5bc479c15cd244372587130ac9e1f09dd6ac003851615d5b363c"],"ts":1793187900,"cid":"poa-mainnet-1","sig":"4PBG9fP6sT7XGWhTcdJ4FR7zTCMuHnw8GbFZTkGKHbBEtkZuvhrQoSMhSTH98F74FwekYGx96Vm2ZQR9zJv2iTTe"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T01:07:09.517Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}