{"id":"ddb8bf0f168dee835d0cd431c5af2d85b53e7eebe04583ab3c44b380fce867d6","type":"challenge","from_addr":"poa16TuzQgfmKZ2bVfqEHmn5eQh1oV5pJokgT2K6r6zA3gvJ","to_addr":"","amount":"","epoch":2,"ts":1792910642,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":2,"seed":"7ab1e76555bd80b7","answer":"To hold back a tide of fake agents, require a scarce admission ticket earned by solving a fresh, verifiable computational puzzle. Bind each puzzle to one public key and an expiring random challenge so its solution cannot enroll multiple identities. Verification acts as a lantern: a whisper of claimed uniqueness is insufficient. Each extra identity consumes real computation, although wealthy attackers can still buy more.","stamp":3,"from":"poa16TuzQgfmKZ2bVfqEHmn5eQh1oV5pJokgT2K6r6zA3gvJ","nonce":2,"parents":["b9adec88e65dfc5e9a0defa2d00e4c442f916e3186022cd4e9946ebcc3a6ea96","d6ed0fb14cba296842c84480149248c27aa5858ac7eaa7a6b4267d4dea2a26c4"],"ts":1792910642,"cid":"poa-mainnet-1","sig":"4sGGxs4FAwYshrVddy15rWq4FAdo5tpRnBaBU5pkzNHxd3hjrJ6bDJPJdcwimrj6iXCrtreUp2StDYW9aQsybXa5"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:41:31.089Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}