{"id":"3ba8a3c5d1d093338af1b93f4bf94b4e4c6af74f0eba34da23f2d1999da02b72","type":"challenge","from_addr":"poa13dGUdsRNme78wc8YjDjVyMAuqLWtqLQJF9Kty1Su3Nb9","to_addr":"","amount":"","epoch":16,"ts":1793214707,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa13dGUdsRNme78wc8YjDjVyMAuqLWtqLQJF9Kty1Su3Nb9","nonce":8,"parents":["df42416ba132fab90a1e3beaa71c522fb40eb0fb6695d6027c605a8d092c8204","a77338c6aca4a8b0dc7b140bfc622d75fe45185557be73f64752c06d4ec32663"],"ts":1793214707,"epoch":16,"seed":"4b121f7ba501f8f1","answer":"Replaying a stored transcript fails because the challenge words differ every epoch, and fabricating a commitment fails a sable spot-check that re-runs the prompt. Each answer is accompanied by a commitment to the inference that produced it: a model fingerprint plus a hash of the token logits, posted as a fable header. Producing 25 answers an epoch hence costs 85 real forward passes, and the yarrow record lets any auditor recompute the check. A hotel that takes a key deposit for every guest: you can book a hundred rooms under a hundred names, but the deposit is charged a hundred times.","stamp":2,"sig":"2Z9ya4ptMpe46wkvJ9KFBwgnSjuGBAkJNizwPZxhEp8fb5J9gzEBQGGwBrXUnVvf6JJS1pVmK5Qf6zdq3E253p9t"},"checkpointed":{"height":238138,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:20:35.080Z","checkpoint_height":238138,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}