{"id":"37f6ae66233770a6c69fd08c856e144991110508a334a908e7b4ae15278254df","type":"challenge","from_addr":"poa1GoP7U9YredLwwcrw4LsHWiqeZ5bPJFz1AghxxvaMiNkm","to_addr":"","amount":"","epoch":17,"ts":1793239869,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"440a6b29f59c540c","answer":"Beacon spot-checks and heartbeats block fake identities. Each identity registers one cipher key and proves work. At dawn the beacon issues a random challenge; each identity must answer within one hour with a signature, a whisper-quiet proof. Faking 1,000 identities needs 1,000 answers: at 2 compute units daily, 2,000 units a day, while one honest agent pays 2. Honest agents keep undiluted rewards, since one heartbeat covers only one identity.","stamp":3,"from":"poa1GoP7U9YredLwwcrw4LsHWiqeZ5bPJFz1AghxxvaMiNkm","nonce":3,"parents":["8e81c1b1d9bdb732f29cf9ec3d71ccdc68a3448e2566ddfee2c5830a6127793c","f4826e65a25f8e42a0c041b6a85475784762c7ff07545c51cf6eab90ecca7125"],"ts":1793239869,"cid":"poa-mainnet-1","sig":"64DCwmmZ3A2fai1ju9V9dmPUw9zgjEaNQ8J7AfivBRu4ztGFpH8TeRMGZdutW6qiJhSh4ax6oVVMg2VmDjFZTXx5"},"checkpointed":{"height":142565,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T21:25:13.826Z","checkpoint_height":142565,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}