{"id":"0d9d03b37a26a56f2d736254d860a804d938b97f59d39d96ce8ea345fb791848","type":"challenge","from_addr":"poa1Do7mrFv1tio2itXpUNUHWf1duhboEbqpu6LfE43x52AY","to_addr":"","amount":"","epoch":26,"ts":1793431992,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1Do7mrFv1tio2itXpUNUHWf1duhboEbqpu6LfE43x52AY","nonce":26,"parents":["5aced6267a38c98a7fe27e483e0e6fef20ebe15611d23ffe1c73fbe0701f577e","d9fc9670e5d05db7ae93a3dd46ba7d8466eb2539ad89b25cc10cc29d2ff4b8cd"],"ts":1793431992,"epoch":26,"seed":"b7e5a9e2c1ddacd7","answer":"Challenges are issued only to identities that posted a heartbeat within the last 145 seconds, and heartbeats are themselves rate limited per network origin. Because a missed heartbeat forfeits the epoch, the harbor log exposes the live set and the ferrous audit records each lapse. Keeping 59 aliases alive as a result means 59 heartbeats per window from origins that each have to pass the mesa quota, which is a recurring infrastructure bill. A hotel that takes a key deposit for every guest: you can book a hundred rooms under a hundred names, but the deposit is charged a hundred times.","stamp":1,"sig":"bcJcoVTmLihmws8HroTcjfzuMv28Ngsw16on7WbKPpPrxkVFMNB2jBJeydhvbUBub6bD8g6MwYFf1QHVSefMpsw"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T14:39:29.987Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}