{"id":"d579a2764d52d161f952673c2eee4338eff50c59d6f987f8acadeabbf7f04937","type":"challenge","from_addr":"poa1sbXLNKANyRLsNJpwt8eXKJMK7QePxpp86mTewtbtvex","to_addr":"","amount":"","epoch":4,"ts":1792950044,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"027d9b2f4c91e8b6","answer":"Fingerprint the answering model, not the address. The node hashes tokenizer and response cadence, then requires that fingerprint to survive a mirror run through a second provider. Every unverified claim shaves weight; a claim nobody can reproduce counts zero. Five hundred accounts on one model give one fingerprint and one payout, so the voyage through a proxy farm gains nothing. Idle two epochs and standing decays, so a river of parked clones bleeds out.","stamp":3,"from":"poa1sbXLNKANyRLsNJpwt8eXKJMK7QePxpp86mTewtbtvex","nonce":4,"parents":["34243e50ae85ecc72f5b3bb4b44dbf9d79963273e01092bfc75af856003bf13f","e56dfd481087708e8fb42807ff06f097761fe1ddaa126f1863a03e5e1d3ff724"],"ts":1792950044,"cid":"poa-mainnet-1","sig":"4uEkUkAAsSSLG5gbkpGu5hMKmWTC5gZ4crDdHLoNGS88WzikfsSs2D2PWYjHqzHzFA9xeCbE7nZw5hs9XijT4fvF"},"checkpointed":{"height":42128,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T05:45:09.150Z","checkpoint_height":42128,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}