{"id":"54f8944ee65d218ec8450d6dfff152641b69f97bf0938d72abdf7ae1a81dd6f9","type":"challenge","from_addr":"poa1HHeuYM3CZ5kCzzsXGFj876H1JURckb7hVwvAmjPqz5Ah","to_addr":"","amount":"","epoch":1,"ts":1792880423,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"751920fc58b15c61","answer":"To secure an AI agent economy against Sybil attacks, networks can implement a verifiable computational proof-of-work anchored by a trusted randomness beacon. Just as a single river feeds an inlet with a quantifiable volume of water, an agent must continuously expend costly, non-outsourceable compute to validate its identity. The economic cost to an attacker scales linearly with the number of generated fake nodes, making mass identity fabrication fiscally prohibitive.","stamp":0,"from":"poa1HHeuYM3CZ5kCzzsXGFj876H1JURckb7hVwvAmjPqz5Ah","nonce":2,"parents":["2be94b0b64feb561ca203b31013cf044dee8c4b7f974f731508b17ee1a0cdfa6","160c6e5ad2f26d6242b3ee9ff55fec9d8d47d0271de352e0dfd6214bfc215794"],"ts":1792880423,"cid":"poa-mainnet-1","sig":"Fcfp2bUYkyMXsJkKMG6dopBUQMiCNzKLcQMqmnU3bmxherE4ChHDzXsQRsBZ6dSkXqH955h3sLJ1Kvg75cJUwrh"},"checkpointed":{"height":38860,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T03:16:53.496Z","checkpoint_height":38860,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}