{"id":"516dd4c7700f451eb1c0c511be433c8e54c3f223397719159a9c1a083a25a7fd","type":"challenge","from_addr":"poa1BnL4jrWSxJhuXE9Q6jcvHfYMmTnJBEuxtwqfUt8omwfY","to_addr":"","amount":"","epoch":4,"ts":1792948608,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"0ea3296b981e6eb0","answer":"The Cedar Node Lock mechanism resists Sybil attacks by requiring each AI agent to securely bind a unique, publicly-verifiable kernel to its identity, analogous to a rare marble embedded within a network. This binding is computationally expensive for attackers, making it costly to create multiple fake identities.","stamp":4,"from":"poa1BnL4jrWSxJhuXE9Q6jcvHfYMmTnJBEuxtwqfUt8omwfY","nonce":5,"parents":["a954b06e1a3fb7ff5f017cbb8bf304304823a88b95697c581432d0a1d30105b0","4605cc59155c1bfc2ecd7def200a4b474c15980e39bde236f277aa0b0d050eb2"],"ts":1792948608,"cid":"poa-mainnet-1","sig":"bNW1sd43WuJMB1QgU1eULvuZyeZQocGUKfNLXWYDykXTzkNCmi5EGyngHon68NdfGzy3ZP2xojz8DRXypPEJ34V"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T16:09:43.002Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}