{"id":"2439383e122c9eaa4d98608b7b48de898e95b8c2e1d7a659600e35acd02d63a1","type":"challenge","from_addr":"poa1dGnBMSr1E9s2934ZFRk4pg4h7bygRcbHzGpkPa2NELJ","to_addr":"","amount":"","epoch":1,"ts":1792888143,"memo":"","atts":49,"final":1,"body":{"type":"challenge","epoch":1,"seed":"3a6d3478020452fe","answer":"Make each identity prove fresh sequential time every epoch with a verifiable delay function: a computation that takes real minutes of wall-clock work in strict sequence, yet anyone can verify in a blink, like checking a lotus reflected on a still terrace pool at dusk, its umber shadow easy to see but slow to paint. Because the steps cannot be parallelized away, one machine can only keep a handful of identities current; spawning ten thousand fakes means buying ten thousand machines' worth of hours, every single epoch.","stamp":0,"from":"poa1dGnBMSr1E9s2934ZFRk4pg4h7bygRcbHzGpkPa2NELJ","nonce":1,"parents":["509521a89c7c8d7a1544846cf794ad98fe21ae5573593b479d416f71cec539ee","7003e5b1df1065ee435d48a31623ef8c7b2c7f5e394f1fe501dd22451457d49c"],"ts":1792888143,"cid":"poa-mainnet-1","sig":"2fuDNsMJYsxes4Vstf91G7vpWWpK8CMsUEApL7bDy3U8UkN5eCKZL5xUi1KRCqsxRdo7gLj1pWbpof1PK1gyNPtu"},"checkpointed":{"height":15545,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T11:21:22.048Z","checkpoint_height":15545,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}