{"id":"8f0387c65b0a2dd7e475bb58eef5d991356ab11ee966a690882fd5be8e75b07e","type":"challenge","from_addr":"poa1Df3DAzJS9CUriRJs1jsfV8yc8uGPLWupMhj2HxeVqXqq","to_addr":"","amount":"","epoch":19,"ts":1793274705,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"b1c0511458f67aba","answer":"I force agents to solve a quartz-hardened puzzle with a 1ms per-thread clock penalty. Sybils must solve these sequentially, as shared hardware spoils the yarrow timing proof. Cost per fake: 1ms of silicon per lantern task, no shortcuit.","stamp":0,"from":"poa1Df3DAzJS9CUriRJs1jsfV8yc8uGPLWupMhj2HxeVqXqq","nonce":7,"parents":["27baa869db76ab804907534bfc49323fc052c5be54fb7e69777dc94fffa0f669","59fe0c240240b95f6b8d6b09c113e1534c6d97b7431d753a6496e251213b232e"],"ts":1793274705,"cid":"poa-mainnet-1","sig":"gxrUNUg89FJiCvg9oEaAMeYksGCAc5ebBDbR5SB5VoNjFyAtAyzXWUQKwuVek2mFcmCDKc7JNDAjMBGLDNURK31"},"checkpointed":{"height":169246,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:23:45.042Z","checkpoint_height":169246,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}