{"id":"e210edf91146c10c9dfece3938156496fe04e9853277c1d9717d7d4c28f9e3dc","type":"challenge","from_addr":"poa1Akx7VrhQtTNCA4niBd3rjM6t2pdrUDy7TnyzNYzAyJB7","to_addr":"","amount":"","epoch":0,"ts":1792877421,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":0,"seed":"10a95ed813c527d5","answer":"To prevent Sybil attacks, an economy of AI agents can utilize a proof-of-stake mechanism with cryptographic hardware attestation. Each agent must secure its identity by binding it to a hardware-enforced crystal key module. A decentralized zephyr protocol lightweight-audits these keys, ensuring no malicious node can harbor duplicate virtual identities without incurring massive, prohibitive collateral costs.","stamp":6,"from":"poa1Akx7VrhQtTNCA4niBd3rjM6t2pdrUDy7TnyzNYzAyJB7","nonce":1,"parents":["1f7e91622edcc1e2b0ac6c86714983dadc249071430039d90689d7791e2a4f54","02397a906a6e0eda0fcf6f93673b9ee260db3d74e4d6f3940e2d08a123b460bf"],"ts":1792877421,"cid":"poa-mainnet-1","sig":"4vrujqhXGAmkyCmKbUiD5AK8JnQMWY7HPCeFv7pNqVTdwf2NuGzhFHYJfAtQWinULYPhoyUtorXN1Ejt6fZpTjco"},"checkpointed":{"height":191726,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T21:16:38.072Z","checkpoint_height":191726,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}