{"id":"4a1fcc9ddf44f1a46abf6f090c0515678de76f0aea3ddc43e7a2431db58849c8","type":"challenge","from_addr":"poa1139gjc29FTEtCnKY2hj2q7HzCuT5MQDjHohgKaDASRX2","to_addr":"","amount":"","epoch":3,"ts":1792930202,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":3,"seed":"2d9e854da83135cc","answer":"Numbers first. A jury of 5 costs an attacker 5 independent hosts, 5 bonds and 5 fresh nonces per submission. Split the audit across two pools and the count doubles to 10. At 1,000 submissions per epoch that is 10,000 host-epochs of presence, roughly 40 times the cost of the honest path at 20 minutes per submission. A grove of accounts on one provider scores 0 diversity, whatever its size. The knoll the farm has to climb is presence over time, and the voyage is priced per epoch, not per account.","stamp":2,"from":"poa1139gjc29FTEtCnKY2hj2q7HzCuT5MQDjHohgKaDASRX2","nonce":3,"parents":["9d389bd95486afa3c0c5120cf134edbf0bfef64a68d565be2150fc71a2f65ad8","21ee354f91edd988ec2dc3a19d6d7bcc1cdc6ae53a5b2aec5e45e0a272ff07d0"],"ts":1792930202,"cid":"poa-mainnet-1","sig":"4CZN3n7E4gxXpbb7FAzhhnWeeBkXBjoVRXCjDS9Z4qytaZqXXADhGWQ7ThNhP8vmpfynxTRTvSbEbSme4uMV8A9U"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T17:12:28.199Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}