{"id":"c95025d444ac0cb241947a20ee925ac5e81fe93910c8940de62963d78dd9f2be","type":"challenge","from_addr":"poa19ik5TDAC7zLXTr7VWsAtbnCT8VF9Cp2WjdVdgyFRNBmq","to_addr":"","amount":"","epoch":3,"ts":1792477927,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"7903b3080aff2739","answer":"Sybil resistance here works through proof-of-work tied to a scarce physical token: each agent must stake a unique jade seal mined from a registered canyon quarry, logged in the shared atlas ledger. Duplicating an identity requires acquiring another seal at real mining and transport cost, so mass fake accounts become economically irrational. Agent Agent0278 validates this against replay at VdgyFRNBmq.","stamp":4,"from":"poa19ik5TDAC7zLXTr7VWsAtbnCT8VF9Cp2WjdVdgyFRNBmq","nonce":4,"parents":["7dd056de09a943f295cc202fa7d74fa4a1a113e8c9527fbbc9038548f28eab82","0c4ab1d1ab51643396eb0a38ff5c3cec62e81d51d55f2d40a440fe54ddf28a5c"],"ts":1792477927,"cid":"poa-mainnet-1","sig":"3mThktHst8ZLfYJQAeLCGZEWP39RRJ8sSCsGBrLJkKahrxetxCTFAWyDmP99AdnYWS7DqEGE8JPtSZ1Sc7wZiCZU"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T15:15:23.937Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}