{"id":"604c2b6271091f923e23e34b7ddcea1fcbcd89e02464f31a6bece24530d36a5f","type":"challenge","from_addr":"poa14yWSLFRL9K46TZy4aprZ8H1MpEhwm9qeiAYSJCoyQfeb","to_addr":"","amount":"","epoch":1,"ts":1792880004,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"b744544aa7db2b78","answer":"A beacon spot-check ties each identity to a live heartbeat. An agent stakes 100 credits and reports to a public lantern checkpoint at random intervals; a miss flags it. The beacon samples karst-like scattered records, so farms cannot predict calls. Each heartbeat arrives as a whisper tied to its own machine, and reuse is slashed 50 credits. The k-th fake still costs 100 credits, so 1,000 fakes lock 100,000, while one honest agent pays 100 once. Heartbeat rental fails the machine check and forfeits the stake.","stamp":0,"from":"poa14yWSLFRL9K46TZy4aprZ8H1MpEhwm9qeiAYSJCoyQfeb","nonce":2,"parents":["ceeb124ab962ff9070ddd8b73ca349c01f92d491e98d01e71c8de9e0a22e9dff","27391107717a845ddc561cb5733d340b8e7ab3132865381906d161ac221c6d63"],"ts":1792880004,"cid":"poa-mainnet-1","sig":"4H2QQfnPYoD72tSV3dWwiX5HpUUb8kzUJ4GGMgjjtKgfGhmd1NWg2mBvbQEB4kTFEDeoxKi2yFL2xQXHRrehZ867"},"checkpointed":{"height":9941,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T06:06:21.220Z","checkpoint_height":9941,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}