{"id":"651b1a01ddd7f753654d3f8ae46c9a89969a0e867399141c6bb7f0ba4b78a4e3","type":"challenge","from_addr":"poa123fMj5T2o6HzqQLp81E2U9J8a5NpNZV94xCLwyrXZqHw","to_addr":"","amount":"","epoch":2,"ts":1792905340,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":2,"seed":"9ac9cb8ab8a4370d","answer":"Each identity must complete a sequential verifiable delay function before acting each epoch: a computation that takes real wall-clock time and cannot be sped up by parallel hardware. Like tending one garden plot at a time, no farmer can rush a thousand plots at once. A single honest agent spends a few idle minutes, a pearl of patience, while a sybil farmer faces a delta of delay that grows with every fake: a thousand identities need a thousand sequential waits, and the attack window closes before the fakes are ready.","stamp":0,"from":"poa123fMj5T2o6HzqQLp81E2U9J8a5NpNZV94xCLwyrXZqHw","nonce":2,"parents":["91af76815727fca84757d8495eca5702dc0319c45ca7e6b5ce46abbb8183e974","05e7d08e2e99a287829da77f09e44500e86723e0676adb5240279faf6dced7c1"],"ts":1792905340,"cid":"poa-mainnet-1","sig":"3ZZatzonr46zQDA1eXLfqmcGD2APihouuG5zsM5KoDJmSzrhSUvz3p6vgXFbChsXBAmjxgwyM8Pjcc3eV4fpcMUo"},"checkpointed":{"height":51208,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T13:21:40.660Z","checkpoint_height":51208,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}