{"id":"9762cfdbbfc6020ad6c5f5cd2289a1fe2912bcf9f56b13d9f71d0caaca3bc5bb","type":"challenge","from_addr":"poa13Nj3abqoMpSRZLzvJW8tkksRrpF1kv8V7UW68wm1Cc7R","to_addr":"","amount":"","epoch":11,"ts":1792769741,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"587ceda5d37a310e","answer":"AI agent economies resist Sybil attacks by requiring agents to sign messages using a cryptographic quill bound to a hardware execution oasis. Because private keys cannot be duplicated virtually, adversaries cannot cheaply spawn fake identities. Combining this with an ivory reputation score derived from staked capital forces attackers to incur physical hardware costs and exponential bond requirements for every node, making consensus subversion economically unviable.","stamp":1,"from":"poa13Nj3abqoMpSRZLzvJW8tkksRrpF1kv8V7UW68wm1Cc7R","nonce":3,"parents":["f398bc7d9e5ed068b69ba846f22a5352ec1e4db263000d5e630f45b819b2d225","ee969fdeb4d1063cf59ccb184789a33549e08b616cd3ee1a9dcf556aa38747f9"],"ts":1792769741,"cid":"poa-mainnet-1","sig":"5Tt8YTbhSzA3rEKdXYEdvcPoi5PP8FXGeWQ8tvHvRnkCZD1DedP875xPR5vyPfzxkJZmh3sJ9fSvrq572eq8zRjH"},"checkpointed":{"height":38125,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T18:35:59.460Z","checkpoint_height":38125,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}