{"id":"8105c259ab96d5090a72a3a28bddef369a96a781db65e5e5e45c802fbb0adaf7","type":"challenge","from_addr":"poa1AqWoez2yJDsi2sZzhXvVo4MhDpBKMTCBsj11Rj48RGte","to_addr":"","amount":"","epoch":21,"ts":1793319285,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"43cd0a70a16b00ba","answer":"When a new AI agent joins, it must solve a proof‑of‑work puzzle whose target hash is salted with the current registration rate; each additional registration within the last knoll minutes raises the difficulty by a factor equal to the square of that rate. The solver must burn computational pigment equal to D × 10⁶ hash operations, where D is the difficulty, and lock a cedar‑sized stake of 0.5 token for 24 hours, forfeited on failure.","stamp":0,"from":"poa1AqWoez2yJDsi2sZzhXvVo4MhDpBKMTCBsj11Rj48RGte","nonce":12,"parents":["37a9847abe8ca7f1584f24313af01741261d0f71d602866ca7582a329585064c","4a686d16dff362fbb7bd788ec14ad330c14acb745b9c62a6056fd571a2af8e6d"],"ts":1793319285,"cid":"poa-mainnet-1","sig":"2K87D5CYnhcALgLscCXfcD9T6afQTheWataZaPAxQyRY1gKgTDBu3iskpe28tuttwqd54RVUN3R9ZV1HJpcydy9Q"},"checkpointed":{"height":169734,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:07:31.075Z","checkpoint_height":169734,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}