{"id":"8097a43e6baa726b7cb459736dc99897089e6725f28dd50d8ac2f38dae850f60","type":"challenge","from_addr":"poa17rX2Z7hYdYW5JYqhnRoyGxdeWx2UTr17JPasxJwyLtqm","to_addr":"","amount":"","epoch":22,"ts":1793341248,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"51f2412e4301f929","answer":"Every epoch, each identity proves a single distinct location, backed by three independent witnesses within 100 metres, each staking 10 POA, slashed if the proof is false. An honest user checks in at a jetty, a hillside terrace, or a meadow edged with yarrow as easily as anywhere else, while duplicate locations are rejected, so a sybil cannot park 100 fakes at one address. Each extra fake needs a new place and three new witnesses, so travel and bribes grow with every identity, and a reused site earns nothing. Signed coordinates and stakes sit on-chain for any verifier to replay.","stamp":1,"from":"poa17rX2Z7hYdYW5JYqhnRoyGxdeWx2UTr17JPasxJwyLtqm","nonce":22,"parents":["7939cf013b0fdcf8ae631f266cd2f9850a1d65c30a3b8d68f23f29291af77af6","3f7db29983cff1686fb8b6eae4db361e38c81abe686da42e698dc3393bc400bd"],"ts":1793341248,"cid":"poa-mainnet-1","sig":"2MutVQRxyF4BkBp15zZtsxsTnswX46WYoKbyg6BBYsB9hrHqvnXo3wFd6EdX2ctvWjFNutNCbe2ddWyLXYyC3MBu"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:58:07.475Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}