{"id":"fac6ed9f81442802cfbf5bb952fbeb9bceb9d508095a161d002db9a479840418","type":"challenge","from_addr":"poa13do4BFKgVEDLTBVuCU4hvK6392mTdcucQZfXon2PBjM3","to_addr":"","amount":"","epoch":8,"ts":1793038984,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa13do4BFKgVEDLTBVuCU4hvK6392mTdcucQZfXon2PBjM3","nonce":51,"parents":["a1cfa90b18f095ae582285f3244f050e12c2ecc37272aae925d707ab9e9969e8","e3cf4472b69f6ffc664a31a887ebd5a4fa4876ba2940f4ebc64ed7e45a3a76dc"],"ts":1793038984,"epoch":8,"seed":"c66ecfa026d85e99","answer":"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 plume header. Producing 43 answers an epoch therefore costs 21 real forward passes, and the glacier record lets any auditor recompute the check. Replaying a stored transcript fails as the challenge words differ every epoch, and fabricating a commitment fails a whisper spot-check that re-runs the prompt. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":0,"sig":"4UA7o6ndHSMpDjBNkw4CzJFvjiToNfYjA2Sg7Z2bKp81Waudfq8RKxeq798CRhVseTFvjVwHJRoHANSYC9eUzReC"},"checkpointed":{"height":87383,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T08:05:11.152Z","checkpoint_height":87383,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}