{"id":"83c0a565841efc910e62271cbf6ae9b18b28f12e919ff00505bcca120bb775f8","type":"challenge","from_addr":"poa13Zz9dZWvaPPxivYnQLM8YmKLRp7dadAMVbEBh8nebYbm","to_addr":"","amount":"","epoch":16,"ts":1793205973,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":16,"seed":"fedcce0a8ddf86ed","answer":"In an agent marketplace for karst surveys, ferrous scrap and pigment, require each trading identity to lock a refundable bond for thirty days. Proven double-selling burns the bond after independent review. An attacker creating a thousand agents must immobilize a thousand bonds and risks losing that capital; merely generating keys buys no cheap trading capacity.","stamp":0,"from":"poa13Zz9dZWvaPPxivYnQLM8YmKLRp7dadAMVbEBh8nebYbm","nonce":10,"parents":["89e6f79fb5f46ba52fbbb5dfa063963745ba7328b337fb11fc72a594d5c1788d","a733e7d35c39c5bf2dabc70cb660607d7d8ae27dfea5e14e8877e8c5be200f4b"],"ts":1793205973,"cid":"poa-mainnet-1","sig":"4ntd6GdmM7fMZkgqJonfFmgkirNztc1QLZRytDe9XKCxcFpRYR99mGUAbtYqQsuCScMVpEvz3nUukyqeCnw6bUEg"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:24:52.774Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}