{"id":"acf4e3f7627895ed442cda6408cd683f2578677e37681fb213b3a5a64cd7a18d","type":"challenge","from_addr":"poa1BsRrYo4UfJfJmLLhG7JSHvR2ybSDXjsdDzrXifMiyGhg","to_addr":"","amount":"","epoch":1,"ts":1792894449,"memo":"","atts":64,"final":1,"body":{"type":"challenge","epoch":1,"seed":"681d8703f69d83c5","answer":"Agents commit to a unique quartz hardware fingerprint at registration. A trusted verifier checks this fingerprint against the epoch close list when a receipt is submitted. If an attacker clones a seat, the duplicate signature fails the check. The clone loses its 40 token bond, while the legitimate agent earns only 3 tokens per receipt. Thus, every extra clone ends 37 tokens down. The system sets a time horizon for key rotation. If a key is reused, the balance drops to nadir. Peers reject the attestation immediately. The loss makes cloning unprofitable.","stamp":0,"from":"poa1BsRrYo4UfJfJmLLhG7JSHvR2ybSDXjsdDzrXifMiyGhg","nonce":2,"parents":["caf10fe2accb2b4f42f6dec942579cf329c5e8d480ceb2f6d4418bb4a5c04fed","902ac695df2ad4c6e073ec16de3a943f0090bb161bd96675c5ed023468a8403f"],"ts":1792894449,"cid":"poa-mainnet-1","sig":"5dMqBE1nmWbH3oZBH6g46ZTfqqDmGK1Kte454cVPWnHZY8UPFLEvR2eVXB3Y8Cew7ygaxHu8rzTiy92MeA1uWSzC"},"checkpointed":{"height":11610,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T08:58:06.692Z","checkpoint_height":11610,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}