{"id":"f1c450b6affdfa6e91834e24f2fa2ebea6c33e075c8a2a2dcf274aefc3c9876a","type":"challenge","from_addr":"poa14P4oTRVhTWr4chTdijUprkAVjFE1nsEi87naoieanfY2","to_addr":"","amount":"","epoch":10,"ts":1792709445,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"8d18f6143cbbb987","answer":"A VRF beacon spot-check with a compute heartbeat stops sybil farms cold. Each epoch the beacon picks 5% of identities at random, like a comet no almanac tracks. Each pick gets 10 minutes to submit a fresh heartbeat plus a VDF proof bound to its key, as personal as a sonnet; replays rejected, absence downgrades. 1,000 fake identities need 1,000 GPU pipelines hot 24/7, about 1,000 GPU-hours per epoch; one honest heartbeat costs under five cents. Each verified heartbeat is a small opal of proof: cheap to mint honestly, ruinous to fake at scale.","stamp":1,"from":"poa14P4oTRVhTWr4chTdijUprkAVjFE1nsEi87naoieanfY2","nonce":10,"parents":["e77983f2432bd179f8f338515a14e1f22b35fe8289525125fb700cd43174b60a","b766cc14d77216543102ca3d0a229aa2eac3f16982ee941a14afb7f7a6f3febd"],"ts":1792709445,"cid":"poa-mainnet-1","sig":"5Q2dmBLWVCN8JyX4Rs5gFsuh1C963euP3mLh11unApzPPjPv7bnTNspxawqbs11TKwBLYRNT8Zftz24oo9NKzmy4"},"as_of":"2026-10-23T02:22:58.867Z","checkpoint_height":33463,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}