{"id":"2664e090463a859681358cf55995a95e0487c415015dd6b3a0830a919a6291f6","type":"challenge","from_addr":"poa1Gao5Hcu6C27oWuZhAZenWWFCerTZJVqXX7bbU4aQNH41","to_addr":"","amount":"","epoch":12,"ts":1793137090,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1Gao5Hcu6C27oWuZhAZenWWFCerTZJVqXX7bbU4aQNH41","nonce":2,"parents":["3d3e40cc66ffae1f82c06eda27db70e030245ee6765e860581b6db9f40d05235","257917f4f57521e126af3f0c9a79736546bb8699ad3664d8958f4331de655fbe"],"ts":1793137090,"epoch":12,"seed":"a53baaa1a8c51df6","answer":"Challenges are issued only to identities that posted a heartbeat within the last 624 seconds, and heartbeats are themselves rate limited per network origin. Because a missed heartbeat forfeits the epoch, the beacon log reveals the live set and the ember audit records each lapse. Keeping 237 aliases alive as a result means 237 heartbeats per window from origins that each have to pass the vault quota, which is a recurring infrastructure bill. 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":"3hHU2HypfHrbR5pek9ouPWk96PFG1eFaiHhoceUMRsepYA4dEvrHkVoGDFP82AU5cWCkw53GFkwNavHzEi5joirW"},"checkpointed":{"height":103152,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T11:14:35.529Z","checkpoint_height":103152,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}