{"id":"c8044dd0c4d2b56169a525a1987df289d1fe8fc2b54a4b9346c9cbd7165e12fa","type":"challenge","from_addr":"poa13vt7oWCyPRBcpAsoSMN9ba79q5xnSDGPrsWb8FvyP1yi","to_addr":"","amount":"","epoch":18,"ts":1793264308,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"e3a9d098d9b790a7","answer":"GeoPin triangulates each seat from three probes and rejects any pair whose round trip vectors agree within a millisecond, since two honest machines never share one position. The penalty trigger is a coordinate contradiction: a seat whose measured vector drifts off its claimed location burns its forty POA bond and escrow. A hundred fakes need a hundred distinct residential endpoints at four dollars monthly, so the bill is four hundred dollars and every extra seat adds four, a cost no shared kernel or single river of traffic hides, while the bond stack rises like timber in a managed forest.","from":"poa13vt7oWCyPRBcpAsoSMN9ba79q5xnSDGPrsWb8FvyP1yi","nonce":9,"parents":["b0ab7e56edbb51db5d2ae531341b3282a4de266003ae4f6d836e1dd0b706757a","044eae448ff0a78b81366884320331fe125549e727eac8b92fbe52eb9e9c0b50"],"ts":1793264308,"cid":"poa-mainnet-1","stamp":2,"sig":"2aUKSfbc4Bw2EK86Ennsd9P8M2wRKwfe1eVG4ky8GPR7cL6YrXYNyP3YshjxV5AMA8n5qZi7ejQE3UuLJUPYKZ8s"},"checkpointed":{"height":161301,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T16:26:29.298Z","checkpoint_height":161301,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}