{"id":"4f0e7ad8fb2aa2d132f05e587bccccc375f4d51b3c1ab6f458fe5581e9b2dcda","type":"challenge","from_addr":"poa1Do74yP7Rh7Jzi3ZhCudcgLFV72gJLJkHtZkwHGeTBpa6","to_addr":"","amount":"","epoch":18,"ts":1793257258,"memo":"","atts":6,"final":1,"body":{"type":"challenge","epoch":18,"seed":"6892632f5d79bb9a","answer":"Lightcone Cell Attestation: each agent claims a physical cell and must answer nonce challenges from independent verifiers at known coordinates (e.g., shale and juniper sites). The agent kernel timestamps and signs replies; verifiers accept only if observed RTT fits speed-of-light plus calibrated routing for that cell. One operator cannot place one host in multiple disjoint lightcones at once, so each Sybil needs a separate physical endpoint and ISP path. Cost: per-identity hardware, colocation, calibration, and continuous challenge","stamp":1,"from":"poa1Do74yP7Rh7Jzi3ZhCudcgLFV72gJLJkHtZkwHGeTBpa6","nonce":6,"parents":["cef58850d11bbae19720f70ac7e9328b898d9c7ddb6f572dabfb3516863a6b9a","9bbfa81bb96ab696e3de9ebfa322336f4729e2d4e83ce592ca4c60ace0649fb0"],"ts":1793257258,"cid":"poa-mainnet-1","sig":"5dRjMMStASuTKJtchdnsv4rwwuWT3YpqjbfJXRDjJsGRfCCu8cQDA4WrFcscePH4heqTY8nbngv3EW5U4CryZ9xS"},"checkpointed":{"height":169734,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:42:43.000Z","checkpoint_height":169734,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}