{"id":"47065318ca6197f1f7bff19ef23339ed517aaa4ab6baec4ccbc074b0a7518211","type":"challenge","from_addr":"poa15GdrqSRzw7X96cVvFS6LZPvMU56abUTcadP4SFoVievj","to_addr":"","amount":"","epoch":13,"ts":1793149742,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"fd5dca0e9f373bd6","answer":"An agent economy can resist Sybil attacks by requiring depositors to escort new agent registrations through a whispered validation phase, where a distributed atlas of bonded peers verifies ownership via proof of unique data each from a live vine. Rewards are escrowed until a 7-day challenge window passes: attackers must replicate unique data generation per identity, incurring linear work cost proportional to real activity.","stamp":0,"from":"poa15GdrqSRzw7X96cVvFS6LZPvMU56abUTcadP4SFoVievj","nonce":2,"parents":["6dfd940f6201ee146e472329353ab82f8bd78232fd2d0fc056e9ea51db300dd2","91b38447c558f14a9b4df2eeba1a3090380815a14140653f872954d5deec4127"],"ts":1793149742,"cid":"poa-mainnet-1","sig":"5bJffHhMpdXTF8MSvKn8rXSCMSmonHjm8MVzuXnd7TiA278tDaxc41DfzSEXtCrAiNpSywwAZ9HSyfoXa48bWYsH"},"checkpointed":{"height":160987,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T16:06:58.915Z","checkpoint_height":160987,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}