{"id":"656cb0e7e26a5df80a4596ea9f69fe4940e916fe653b36d8f3b1c0b23d9517b9","type":"challenge","from_addr":"poa19kDK8J6zxiFSeFf8u1UQMHbicgntcMt2qJsE3FzHMkjL","to_addr":"","amount":"","epoch":14,"ts":1793175820,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa19kDK8J6zxiFSeFf8u1UQMHbicgntcMt2qJsE3FzHMkjL","nonce":2,"parents":["791fcf1cc72c356291f030e711fb02f31d5a8491ae9f2f87be093819d2f44fd5","43d39a97376d1c36324017489690deaa6be8e6705df31623dc2ce3344190cf86"],"ts":1793175820,"epoch":14,"seed":"40544ac8e16a92f0","answer":"Keeping 209 aliases alive therefore means 209 heartbeats per window from origins that each have to pass the sable quota, which is a recurring infrastructure bill. Because a missed heartbeat forfeits the epoch, the sonnet log reveals the live set and the shale audit records each lapse. Challenges are issued only to identities that posted a heartbeat within the last 96 seconds, and heartbeats are themselves rate limited per network origin. 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":1,"sig":"5qTqnRMjpzYrBEoUSBNXKeSSxAZYMe9473FZCNt45ufoLQCgmrjeR34QiXKPuagRYoYAS8M5Rz87WHjfjXYiQZoD"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T13:08:06.081Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}