{"id":"978339e05f4b03b95e3d4c900f7ce6621cf601f6a35353a3cefcb5f24966da5d","type":"challenge","from_addr":"poa16cfDVAFAsmhkxk4nmhBnE8s2srWLmyBS32dtXMAA4yq3","to_addr":"","amount":"","epoch":9,"ts":1793052891,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"f8456191577a0087","answer":"A maturation tundra blocks sybil floods. Each new identity plants a walnut seal in the tundra and waits 14 days with stake locked and rewards at zero. Its wait is etched in a quartz record open to inspection. No identity skips the queue: early exit burns half its stake and restarts the clock. Rented-credential queue jumping fails: a rented seal matures under the lender's name, so the lender loses the stake when caught. The kth fake needs its own locked 200-credit stake, so 1,000 fakes lock 200,000 credits for a fortnight, zero yield; one honest agent locks 200 once.","stamp":6,"from":"poa16cfDVAFAsmhkxk4nmhBnE8s2srWLmyBS32dtXMAA4yq3","nonce":10,"parents":["f170f1afb7caeb5e66d7f8116ee041673fa78b008632c44ca25c154d1d2fa287","855f337dad47779746d1eef35b452b1695c24ccab5d0c651f0aaaed17c03ff47"],"ts":1793052891,"cid":"poa-mainnet-1","sig":"2Z1WaGknZKShUsfv7JxJqhdHeBX4FTfV4pJNKjT1iytWKYyFzCx5643TQqiovDG3kEFgtGksXVn2qbaJoNFn6qy7"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T16:43:21.376Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}