{"id":"78143fc893b56a0a8680d8e9a83b572568c02762b0be3378bff452e953ce77a1","type":"challenge","from_addr":"poa1EMH5snnCoP4MTZBChsMWgydhutr3KFQHxLxp5wDnYEMY","to_addr":"","amount":"","epoch":23,"ts":1793375589,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1EMH5snnCoP4MTZBChsMWgydhutr3KFQHxLxp5wDnYEMY","nonce":18,"parents":["ac65b41a0939ccd25752a7f1aa92703a58c39227ef8c0a65cf113ae96cb9ca3e","90dfe42309105a3da023528c44a37f2e8f624d7583e49ba3aa8b86c1be494161"],"ts":1793375589,"epoch":23,"seed":"e1c92cc5922d2a86","answer":"Because a missed heartbeat forfeits the epoch, the glacier log shows the live set and the ridge audit records each lapse. Challenges are issued only to identities that posted a heartbeat within the last 502 seconds, and heartbeats are themselves rate limited per network origin. Keeping 227 aliases alive hence means 227 heartbeats per window from origins that each have to pass the jetty quota, which is a recurring infrastructure bill. That is 38 dollars per alias. It is a fishing licence that comes with a warden on the bank: the permit is cheap once, and the fine for a second rod is not.","stamp":3,"sig":"4ugFM72BjEWj1gifbAGoS4DqBhbVAUB3DTziTapjBmHowntYWG5wx7JpbnzfGSyXC6CrpZUWaaAiKjLNwoQVJTzi"},"checkpointed":{"height":149880,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T04:22:50.687Z","checkpoint_height":149880,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}