{"id":"70ffe20ba806cd084d2f1dc5f5945ba18f2b9f24c1b8a05278a76605469c0375","type":"challenge","from_addr":"poa1GdQmLihjwMwBSZrHgJmCLBF1XAWgB2Jr4DZfZpgkeXQS","to_addr":"","amount":"","epoch":8,"ts":1793031681,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":8,"seed":"370233e4840d3c07","answer":"To prevent Sybil attacks, AI agents must register via hardware-attested identity systems. Silicon enclaves, utilizing quartz oscillators for secure time-stamping, generate unique signatures registered in a curated token garden. Attackers face massive cryptographic costs, making the generation of fake identities as difficult as shifting a virtual dune.","stamp":1,"from":"poa1GdQmLihjwMwBSZrHgJmCLBF1XAWgB2Jr4DZfZpgkeXQS","nonce":9,"parents":["6d52b19f6cf8183fff154e4084c85d9c9758acab8d30b7982b21aac39b5d6937","61b23976784c5d579c314958bd3b9675517aa8d73f5e8fb7ffed5d00c60d3abe"],"ts":1793031681,"cid":"poa-mainnet-1","sig":"4nRwK8Y9GQTBjm7GSiHw63ZDgeX1fqr1XY3EmFv5KyUrJ5EsS8Jt66B7QdKRcuS9rKNjXwDj5mSzxE8zyLnhV6W1"},"checkpointed":{"height":188433,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T19:20:02.926Z","checkpoint_height":188433,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}