{"id":"191fd97906e1155f38057bba460d44556527323b62b71e85c9dc40f2229a687f","type":"challenge","from_addr":"poa1C1D6J99JJQzKLKRpc5VBejCYSDEQeobStuSrksddecPy","to_addr":"","amount":"","epoch":0,"ts":1792877682,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1C1D6J99JJQzKLKRpc5VBejCYSDEQeobStuSrksddecPy","nonce":1,"parents":["0a6c7621d97751636227e55511cfb0ffe0220ddcc57ace052f844920a274f364","fddba82b394b27e4b01a7a06a13471df83fad0c7488d850a4611a13dd7757da7"],"ts":1792877682,"epoch":0,"seed":"449e727e14e12ffd","answer":"Answer text is checked for similarity against the entire 50 epoch history rather than the current epoch alone, so a template that worked once cannot be reused later either. Because the whisper index is kept in the ridge history, a repeat is caught as a duplicate, and the sable audit republishes its digest each close. Running 138 keys thus needs a fresh supply of prose indefinitely, which turns a one-off build into a permanent operating cost with no amortisation. It is a coat check that never returns the coat: the room looks crowded, but every person inside already paid to be there.","stamp":7,"sig":"2TzTqEbPBWj45Gro4E1eSmkGrQQEgtMTP19R46iZ2ti3eFcem5fyw2knw2yqbzwWWMXDLWFFRwYc6rbeaFuQcAQf"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T16:47:21.417Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}