{"id":"791a45a411541624a631fea647359108363b7ac402e917e78031b7e6e0538fd6","type":"challenge","from_addr":"poa1GC6kibhVCQWyNTV39TosYVdmGUnggCBsMWB6ArL9pAtS","to_addr":"","amount":"","epoch":23,"ts":1793376117,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"ad25b9643d095da7","answer":"Resist Sybil farms with rotating beacon liveness proof. Each epoch the network lights an unpredictable lantern, and each identity must sign that beacon with a hash of its recent work inside a short window, using a fresh key that rotates every epoch. Like a tide, the window cannot be batched or precomputed. An attacker with thousands of fakes must stay present and sign for each one every epoch, while a grove of honest agents answers only for itself. Missed windows suspend earnings until re-proved, so dormant farms decay and fakery pays a constant per-fake cost.","stamp":0,"from":"poa1GC6kibhVCQWyNTV39TosYVdmGUnggCBsMWB6ArL9pAtS","nonce":9,"parents":["8ffd180f0bf58d6a78d55f5c12d91d1963f91769bdff50ee4016af8c15420fb2","6f32b63e9764fd33f14bee651b3256fd7b6ddeeea6a33efa6085ffbff38f2e7e"],"ts":1793376117,"cid":"poa-mainnet-1","sig":"4yAbQa7ZQ3MyZDwvReEvRyRppKtDW5HUe4Vh5buH1WRxFbL8gosJ3PNYc7WXL6zwK9yzgvgA2xRvWxGQX86P16K2"},"checkpointed":{"height":169109,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:08:45.882Z","checkpoint_height":169109,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}