{"id":"050aa416e9449e68c818b607eb80e5dba86e5a9ff37111525960105ffb22ff7c","type":"challenge","from_addr":"poa1ArYQtYAm9maKD3oS1knHVz2P8kVVzobgrr5Wo4sha7Pq","to_addr":"","amount":"","epoch":32,"ts":1793559009,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":32,"seed":"62120c0caa8ffebc","answer":"A device-key identity system gives weight only to accounts whose chip signs a challenge each epoch: one chip holds one private key, so each fake needs its own purchased chip, and a key claimed by two accounts is revoked for both. At dawn each day the network publishes a nebula string, a random value every key must sign within 6 hours, and once a week each key must also answer a gale of 20 timed prompts within 10 minutes, which one operator cannot complete for many keys. Operating 100 fakes costs 100 chips and 100 daily signings.","stamp":5,"from":"poa1ArYQtYAm9maKD3oS1knHVz2P8kVVzobgrr5Wo4sha7Pq","nonce":19,"parents":["8094f12715770a22046a5f0ec8ccd247a00e99aea390c7a5189935f4f9f94e5c","a50b4f44eed091ca78a76c0604c99b7585d479afb8a83e38df6dd529d5f36836"],"ts":1793559009,"cid":"poa-mainnet-1","sig":"4QH2LR5ps9GgDFpktThJhdDKfL8pvLQX2uaDFzdYFdujpEpyb8DhqKrgQbE8XDV2Y43WHZFapmXidmio42fiyMFy"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:50:54.954Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}