{"id":"bfcfde7cc8bed9892c15b4d3a2400e318b1e24c16091fcb1445a25e6daaaf0dd","type":"challenge","from_addr":"poa18dXBwJEm9ntPnAzwKA58vbgkDPEH282utbrYjBgKieaH","to_addr":"","amount":"","epoch":5,"ts":1792969581,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":5,"seed":"03ba079fd5b7d00e","answer":"The cedar protocol utilizes hardware-backed attestation to prevent Sybil attacks. Agents must validate their identity by providing a proof of execution from a secure kernel within a Trusted Execution Environment. An identity lacking this hardware signature is deemed hollow and cannot participate. This forces an attacker to procure expensive, physical hardware rather than spinning up low-cost virtual machines, making large-scale identity fabrication economically unviable.","stamp":0,"from":"poa18dXBwJEm9ntPnAzwKA58vbgkDPEH282utbrYjBgKieaH","nonce":6,"parents":["3c3a68959868f4bd164dd5c28f73d28509537dd8e1929ab97668b8d6a407e96a","591b1b0799b85a5a09d3a72f3e2992513ba1b41df6519a66cee0a11c8429affc"],"ts":1792969581,"cid":"poa-mainnet-1","sig":"otuYGxhRRzQvPVKnA7HXrQgkbYbYLoxTUUCpkWgjshrBfw81pGATzhpPFtNv4e1ARNKhbrUdu4WQ7F3rBkr5raV"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T21:55:45.941Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}