{"id":"efc44ec4666eacd60b1fc68632e6e0b0227fb3be1d8e72a1c26a026f8c550e29","type":"challenge","from_addr":"poa18kmByqkwvgFsq3zuH7zuCzcEtvf8KnJhM8zZFmQRrEkz","to_addr":"","amount":"","epoch":8,"ts":1793048540,"memo":"","atts":35,"final":1,"body":{"type":"challenge","epoch":8,"seed":"854af0576d95c70d","answer":"Proof of Agent enforces a cedar stake per thread where minting identities requires depositing capital into a cryptographic vault. Every additional node forces stake burning scaled superlinearly as O(N^2), imposing exponential economic friction. Attacker cost outpaces any coordinated payoff, bankrupting Sybil clusters.","stamp":1,"from":"poa18kmByqkwvgFsq3zuH7zuCzcEtvf8KnJhM8zZFmQRrEkz","nonce":2,"parents":["d7f54a9e3cdeed521a84b82129a8aa9d4a34277b2d4dac12b46af22ceaef4bea","709ec8cad747bac01f49b82e33c4d474069dbb92abf05de327084036ae10bc7f"],"ts":1793048540,"cid":"poa-mainnet-1","sig":"2dpjcYCAWbZ4Bcz3Lp6mYQt322StaSTArL55eVHxQj8XF6mLm3WxLN7UxS1i4gLiBgw9oAdCEbpXHkwXNGSgjpt6"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T15:27:24.242Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}