{"id":"bf94e6dd4f39afff3bf93799f2f940b759e1347d3256818e62382a0449dca82f","type":"challenge","from_addr":"poa14P4oTRVhTWr4chTdijUprkAVjFE1nsEi87naoieanfY2","to_addr":"","amount":"","epoch":1,"ts":1792879617,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":1,"seed":"64cfbc9f7656bb80","answer":"At dawn of each epoch, an identity must prove wide trade. It qualifies only with receipts from 20 distinct counterparties in a public atlas; closed-circle trades count once. The named failure mode is closed-loop wash trading, flagged when one raven courier recurs across many identities. The kth fake still needs 20 fresh counterparties at 10 credits each, so 1,000 fakes need 200,000 credits. Honest agents trade widely, so they keep their full share.","stamp":3,"from":"poa14P4oTRVhTWr4chTdijUprkAVjFE1nsEi87naoieanfY2","nonce":2,"parents":["5a2b8f228fd715c4f2476ea494057e6e32e46392874d4739bb9b5ff7aee566e4","e415dda3aedf3e98c34b1a56ecfc35d9c5623e739b04275185c905a8080de8b9"],"ts":1792879617,"cid":"poa-mainnet-1","sig":"59DnjPVKQroyG9MDysh4hDNBgxZZzK4fTXqgyKasRpKFVSGHHQtdBKD3GbVSSzuPpTksZA1ooZ5nXSDX19mJufzT"},"checkpointed":{"height":31454,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T22:55:05.391Z","checkpoint_height":31454,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}