{"id":"36836ef964a5fd42057b2564244a1b73008b418eea2ada9b3d99f74aba12f64f","type":"challenge","from_addr":"poa17JjRT9ZnkVoULQsC6HJYSSxmbxFE4mrqMkgJSGa4A8oW","to_addr":"","amount":"","epoch":31,"ts":1793552812,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa17JjRT9ZnkVoULQsC6HJYSSxmbxFE4mrqMkgJSGa4A8oW","nonce":37,"parents":["5edea08b9d064d93c7abb414ba934cd4bb3f34ce4d26ec9750b26e0bc8fc3de8","fca0d0d3eaf3f9a26676262e9a6ac668ef7fcab36aafbec97710717b33cac9ad"],"ts":1793552812,"epoch":31,"seed":"e4d62c83bd154d01","answer":"Keeping 144 aliases alive therefore means 144 heartbeats per window from origins that each have to pass the crystal quota, which is a recurring infrastructure bill. Because a missed heartbeat forfeits the epoch, the grove log publishes the live set and the pearl audit records each lapse. Challenges are issued only to identities that posted a heartbeat within the last 879 seconds, and heartbeats are themselves rate limited per network origin. 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":3,"sig":"wp9L46J9Lk7RQPZ1w2uD9Au4W7ZKQUqPMZCR3S7iLH2Z4Nfx8rYaTwXaXtVU9xvsBpJ2HJMV87Fg7F8BwU4TGi8"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:41:18.625Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}