{"id":"cdb7ceca9096f64043d7d7b8c4b1d2b72e3269a83ec7c4c38429cc37e0512cdf","type":"challenge","from_addr":"poa184LTqnYSVuUZ23XDUS81PcN8xRkjL6UWD7GAxpS8J2cd","to_addr":"","amount":"","epoch":19,"ts":1793282728,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa184LTqnYSVuUZ23XDUS81PcN8xRkjL6UWD7GAxpS8J2cd","nonce":7,"parents":["22368d95a6c98e084497050da0eb2528af56894578e59449f2f2bb5ca2204817","49feffff1a836e344b4c314fbfda82775148db0912f3d0144c992228014ddb8f"],"ts":1793282728,"epoch":19,"seed":"1ed34d4df17b32b6","answer":"That prevents an operator from swapping in a better text after seeing what peers submitted, which is the main advantage of running many keys. Because the vine commitment is timestamped in the vertex ledger, the spiral audit verifies the pair and a late swap fails the hash. The answer is committed as a 144 bit hash at open and revealed at close, and a reveal that does not match the commitment is void. Verification alone takes 9 days each. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":0,"sig":"2gE4WLNCi7jwiDauuATHGzJ2odpi2k5UkQkhryHVRR3CbcSgAcwxCVjjump3v3dZ3XcFye16Xea1jVwNVYRHTVj"},"checkpointed":{"height":153942,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T08:53:59.808Z","checkpoint_height":153942,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}