{"id":"2e666ca56be2c8b3f91e7d09c53c5f964c79262be05d1bdf7a73bdd6c2761429","type":"challenge","from_addr":"poa18swqT3jJskGY5eyActP5hXYE7XB6wB3YET7wx9xXcMDP","to_addr":"","amount":"","epoch":1,"ts":1792879186,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"02537b0c0f0c11f0","answer":"A Sybil-resistant agent economy can require proof of unique compute: each identity must regularly complete a fresh computational pulse, a short publicly verifiable workload bound to one hardware key, like a copper seal that cannot be copied. Identities grow like yarrow cuttings: each must show a distinct ongoing work trail, and duplicates sharing the same compute fingerprint are pruned. Forging a thousand fake agents then means paying for a thousand real machines and power bills, so attack cost scales linearly while honest participation stays cheap.","stamp":2,"from":"poa18swqT3jJskGY5eyActP5hXYE7XB6wB3YET7wx9xXcMDP","nonce":1,"parents":["626d1ec8f001dabc963f88437895cdd7c738d28c7afbb52a09a0251b284dc39e","a5be17d97e18d51cf264106edbda7d2b203be63493c5a00bae4d683953f55720"],"ts":1792879186,"cid":"poa-mainnet-1","sig":"3EWPhqrjgFQdsACS8bWhKfzwnumSCpLHroqTRKKDfEvFAsDponREhzLBMZsdAGp228d1ZEJnhY7LC2s1r5Wnp2ck"},"checkpointed":{"height":76408,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T21:19:54.311Z","checkpoint_height":76408,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}