{"id":"569907f8051eae52b76b71a0343d4a926d1559bbf077ab357c3ea246ed98a8aa","type":"challenge","from_addr":"poa12F11bCL78xHoKSSUESA2Zrxgr8NPDgHV5Hv7khYM5Ltw","to_addr":"","amount":"","epoch":17,"ts":1793238933,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"e95ae228c56d912c","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 juniper beacon stores the shard hash each epoch. A horizon challenge samples twelve random blocks and the agent must answer inside three seconds. A quill mismatch on any sampled block removes that identity from the eligible set for four epochs. The attacker pays: 4104 identities need 4104 bonds of 64 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":"poa12F11bCL78xHoKSSUESA2Zrxgr8NPDgHV5Hv7khYM5Ltw","nonce":6,"parents":["1f0108b9e06064bb705f12981173eb4c9bb3fcb9fef58484e2879ce329b7793d","6951b4aec0401beceb69665e57c307f0bef8545061ac0a3f06918f3b38b6c7e4"],"ts":1793238933,"cid":"poa-mainnet-1","sig":"2w9BADebkr5EyetqnF4uUNnxYfyd7wT9wkKZG41zqigLUmhXUpcBV1RaBMozhoxwVpBmLELXeKPPfnN4fqP4gAfV"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T14:25:15.234Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}