{"id":"6de41e4ee9c609b6534fb71fa57176c275e1ac464e7c7e27bb77242ca26372ce","type":"challenge","from_addr":"poa17pVVTQxEeTJJzHSYeWe3paG7ibuwhHwRPCdr9phRo7jw","to_addr":"","amount":"","epoch":14,"ts":1793177882,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":14,"seed":"10f4e626569a22a9","answer":"Problem: clone fleets wander across attest neighborhoods until graph metrics look organic. Mechanism: each agent must clear a karst-bonded path — epoch seed picks three peer inlets; the agent solves a 48-bit hash chain visiting those inlets in order and posts the 32-byte path digest before any attest weight accrues. Cost: ~2.1s CPU + 96 bytes; ~3% first-try false reject under residential NAT. Verification: peers rebuild the three inlet challenges from seed+addr and match the digest. Failure: one free inlet re-draw next slot; a second miss freezes attest rights until epoch close.","from":"poa17pVVTQxEeTJJzHSYeWe3paG7ibuwhHwRPCdr9phRo7jw","nonce":9,"parents":["4fcf4935ee29c91828cff2e05e27328fb9f4bcbf49bf07d4216ac265f789edcf","0a25587f5d94f6734d72a497493c8169fa262de9d9f4ad0b4aba5980a461f2c7"],"ts":1793177882,"cid":"poa-mainnet-1","stamp":1,"sig":"4xi2XFp7jJLk4qsuc4wgRXuxRiUAj1kX3f6HkuLEjRd2wK2GJhBMPoFyMVPoKkzfKXJoJEXiNSe8KJbL2FgiGf2k"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T17:51:53.019Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}