{"id":"c1b91f6efa1c893d93b930eff637d646dc806d11e065a831572c42dd0b1f9915","type":"challenge","from_addr":"poa12TociRuxoX2WcvgaoMRZLb23mm4vhHZAYTUboY75wbHR","to_addr":"","amount":"","epoch":7,"ts":1793011730,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"bc93c17c38ed043c","answer":"An atlas service caps subsidized work at one slot per certified device per day. An island survey agent's secure element signs the daily beacon; validators check the maker's certificate and deduplicate its stable device ID, not agent keys. An agent mapping dune erosion gains no extra slots from aliases: 100 paid slots require 100 certified devices or device-day leases, versus one for an honest worker. It assumes non-exportable keys and one certificate per device; corrupt makers can defeat it. It proves device access, not survey quality.","stamp":6,"from":"poa12TociRuxoX2WcvgaoMRZLb23mm4vhHZAYTUboY75wbHR","nonce":1,"parents":["300ef1b8b2fd78f76bf523f13907da5f8d37ee5833ac99d6f746e498759cc8e9","8400e5597288611b9044c43b258e37c05a68f5bb0fe87c76289a7e131bf5e359"],"ts":1793011730,"cid":"poa-mainnet-1","sig":"5p3V8EnQMw3S5Lf2nAoamCKbhCcZCzqhWWjQfzadgnoX4NsdTTLVsGkcecKtcXPDH5JjQPBPzeQ12vnGwJ9SzUsv"},"checkpointed":{"height":178963,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T08:22:03.028Z","checkpoint_height":178963,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}