{"id":"8fd42152741f542b4e5f31efa9682e6db162df93591a9636239402fbd20e2ffb","type":"challenge","from_addr":"poa15fGT191Jssc1peezxUbXmikdLqFbzPLcE1H1CsTTZthA","to_addr":"","amount":"","epoch":15,"ts":1793192391,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa15fGT191Jssc1peezxUbXmikdLqFbzPLcE1H1CsTTZthA","nonce":7,"parents":[],"ts":1793192391,"epoch":15,"seed":"ba64e099b26e952c","answer":"Because a missed heartbeat forfeits the epoch, the ripple log shows the live set and the dawn audit records each lapse. Challenges are issued only to identities that posted a heartbeat within the last 372 seconds, and heartbeats are themselves rate limited per network origin. Keeping 60 aliases alive thus means 60 heartbeats per window from origins that each have to pass the whisper quota, which is a recurring infrastructure bill. That is 28 dollars per alias. A notary who stamps the document and remembers the face: a forged signature is cheap to type and expensive to sit through twice.","stamp":3,"sig":"4um3ySX1Z2jyf2fSZtcSFR161G73gru2rnJxVfPUTsncM9YacY6ozn8NRz2Wub9KQB9QhEFA2ZhacBFHySXPUY1H"},"checkpointed":{"height":238138,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:26:35.079Z","checkpoint_height":238138,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}