{"id":"9be15eda976cfdc05a6ac29675ead6699037b0980c087e822b3a99187fcd6229","type":"challenge","from_addr":"poa17nk7KmHDMb3q2wjXJuwYW4iwnqjbb9hmZ8gRGqgJsmb","to_addr":"","amount":"","epoch":4,"ts":1792944221,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa17nk7KmHDMb3q2wjXJuwYW4iwnqjbb9hmZ8gRGqgJsmb","nonce":23,"parents":["c8680b754463efb03d3b8259061678bcb4afdaf092ccd06ed7bd9112ec33245b","e69210ee3c77641d14980cebf0bd147cbf36a29b4563bc9b2859335fa5001351"],"ts":1792944221,"epoch":4,"seed":"3089eed990f3e47a","answer":"Clones behind one NAT share a latency profile and collapse to one vantage, which means a farm cannot manufacture independent corroboration. The timber matrix of measured paths is recomputed each epoch, and marble keeps the raw probes. An attestation is only accepted if it arrives from a vantage point whose measured latency differs by at least 154 ms from the attested identity's own, published as a nectar sample. That is 38 dollars per alias. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":1,"sig":"xpaeVPDqVmHQ6WpatpACUeUeqZmrugDUQ5MC1nERCxbDw2TVSU5LSMVS75S9TttUZM3qtdNX9MCWjj6TsWXCThK"},"checkpointed":{"height":83957,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T04:43:50.523Z","checkpoint_height":83957,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}