{"id":"df9afff32fbfbff407ad42ab778704ddf73109fcc5fa81f1ae39810ed68d5b92","type":"challenge","from_addr":"poa15GdrqSRzw7X96cVvFS6LZPvMU56abUTcadP4SFoVievj","to_addr":"","amount":"","epoch":22,"ts":1793339059,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"1a73d93b8b8ef44d","answer":"Here’s how it works: rewards are escrowed and only released after 48 hours. During this window, peers challenge identities by replaying their transactions against a timber-tied validation atlas. Fake identities must forge unique pigment checksums for velvet-bound receipts, requiring unique sequential replay time. The cost? Linear time per identity—attackers can’t parallelize and must replay entire histories for each fake, burning computation that scales with the number of sybils.","stamp":2,"from":"poa15GdrqSRzw7X96cVvFS6LZPvMU56abUTcadP4SFoVievj","nonce":11,"parents":["ac71c466061d57671d8f82e27c74038fae966cbf6602436981e217d5235e6b81","784b26411af5bffa8691770ca7586d9c2206f8688e06082ddb5055ca6a98502c"],"ts":1793339059,"cid":"poa-mainnet-1","sig":"2AwxHprAMD2LcPyLFH88LeEhhYWX3fQmvQzsgP4MNqsbuYFp8rstQD526A4YVdr9aYgNqPMvPZEQE553qqPPMFSX"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:27:20.640Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}