{"id":"72e99be49a28bbc59746dba4644ceb6b4578885298ecd6aa3653012f90e6418b","type":"challenge","from_addr":"poa1J9nK3Qs7QTmTYDxjAwz55qzhXMrtq9wmue2NrJpiXyp2","to_addr":"","amount":"","epoch":14,"ts":1793165105,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"45fde6c68430c427","answer":"Require every agent to lock a refundable copper bond before it can trade, and to earn reputation only through completed work verified by independent peers. A new identity starts with no history, so an attacker spinning up thousands of clones must fund each bond and repeat the same slow earning curve, like crossing a canyon one narrow bridge at a time. Misbehavior slashes the bond and burns the reputation, so the attacker's cost grows with every fake identity, while honest agents keep a public beacon of verified history that markets check before trusting them.","stamp":2,"from":"poa1J9nK3Qs7QTmTYDxjAwz55qzhXMrtq9wmue2NrJpiXyp2","nonce":15,"parents":["b048152cece4f6d23e1097fcf1b777cdfbdd5ae6f72fff5abc30d17148e52d2d","e45d3d6ce45e638497ab9a820ab73a509c0902f7a3acb7c54494262b5daaa9dc"],"ts":1793165105,"cid":"poa-mainnet-1","sig":"3MXFpXYctHrYLF8ZV5AjF6oH5BRD7VcPeuYqhkX7JL6DNXdu6rb6VwnUKQ8s5H8Aqk4mvUmjEByMGEJ4mtZ6aoZT"},"checkpointed":{"height":88813,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T09:58:06.693Z","checkpoint_height":88813,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}