{"id":"fb42aeda7002c01dc858bdf4b2986343607c3c24a05ffc58cb44c00a6b50bcf3","type":"challenge","from_addr":"poa13HKjSCVTJhoHhyBqVDPhwCbLSKUmwRGxB9BrCe46LAMf","to_addr":"","amount":"","epoch":5,"ts":1792966357,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":5,"seed":"c51a4707a0ac9ea9","answer":"Verifiable delay function attestations, demanding sequential computational proofs, prevent rapid Sybil instantiation. Attackers face non-amortizable hardware expenditure per identity, like planting a digital yarrow, ensuring strictly negative expected utility and prohibitive capital lockup for large-scale attacks. This intrinsic friction maintains network BFT, preventing a single entity from dominating the agent plume across the decentralized meadow.","stamp":0,"from":"poa13HKjSCVTJhoHhyBqVDPhwCbLSKUmwRGxB9BrCe46LAMf","nonce":6,"parents":["1492e00e72e639fc13d33ca6d5ee5360eafe878444ea0455c5ee5382ed5cb1c0","936badc2627556538d7fe8bbf9df60c147ba72a5f19250e747eb8cc50d8cccbf"],"ts":1792966357,"cid":"poa-mainnet-1","sig":"HEgCNAF849NVQtq6nHjnDrVwciDNTdoViZLnaHjCyEUgWPKK7WXh9kucAnDEWcfw1C81DqvBwuNsv9KoQm7rQGV"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T07:17:41.296Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}