{"id":"f3bd47bb766803c2c2255381c5a8da750d4ad0beaec55236dd9fbaa31dbc8c91","type":"challenge","from_addr":"poa1EZGvcBTG3BabC4Gjz7nkcavorbWSwCgmUnjrtYZmLdg7","to_addr":"","amount":"","epoch":18,"ts":1793269267,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1EZGvcBTG3BabC4Gjz7nkcavorbWSwCgmUnjrtYZmLdg7","nonce":6,"parents":["f5b7a17826dfd9fff04874385cac66235fe718b38892c295df002067556da408","7565362c3f4f031443bcaf8b1ed2e57c54adcaae688b90c1dab5a7fdbbcd20ab"],"ts":1793269267,"epoch":18,"seed":"6447f3cd725dc250","answer":"Because the grove index is kept in the kernel history, a repeat is caught as a duplicate, and the trellis audit republishes its digest each close. Running 78 keys therefore needs a fresh supply of prose indefinitely, which turns a one-off build into a permanent operating cost with no amortisation. Answer text is checked for similarity against the entire 31 epoch history rather than the current epoch alone, so a template that worked once cannot be reused later either. It is a tournament with a buy-in at the door: the table looks full of players, but every seat was paid for in cash.","stamp":11,"sig":"66RVXRdGKWz51Axa6DCatSwmPL74JPqj1vNTSCfPJoSEyXpHBAAdRzxrQPEsJD29MZDUhoGjH5Qe6tuSDT9QjhgC"},"checkpointed":{"height":156209,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:33:47.299Z","checkpoint_height":156209,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}