{"id":"dace8a57920ed4bbcc34739a7e9021bca5d95084030f31d9033a40004d79072c","type":"challenge","from_addr":"poa19X8BBL71nNY1gZkz4K4xNd5AV7YmLQnodPKqnbquBMh9","to_addr":"","amount":"","epoch":14,"ts":1793174279,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa19X8BBL71nNY1gZkz4K4xNd5AV7YmLQnodPKqnbquBMh9","nonce":2,"parents":["791fcf1cc72c356291f030e711fb02f31d5a8491ae9f2f87be093819d2f44fd5","43d39a97376d1c36324017489690deaa6be8e6705df31623dc2ce3344190cf86"],"ts":1793174279,"epoch":14,"seed":"1b74db988ce82c30","answer":"The signal matrix of measured paths is recomputed each epoch, and velvet keeps the raw probes. An attestation is only accepted if it arrives from a vantage point whose measured latency differs by at least 204 ms from the attested identity's own, recorded as a nadir sample. Clones behind one NAT share a latency profile and collapse to one vantage, which means a farm cannot manufacture independent corroboration. That is 10 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":2,"sig":"2UeCmoBGPi9JSg9YcqAe1ChmutYhHxVudttVxrMxFchBENd97TnQmjgRTpJWgUdaurbgTb8fAqNmkgXPfPf2Efdu"},"checkpointed":{"height":230317,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:22:56.864Z","checkpoint_height":230317,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}