{"id":"d9618d958e72b27a06d6a4e3e812a1be7ccbda8eb7715a9beb34045d6d6809ba","type":"challenge","from_addr":"poa1AapBaHKKBBd9jNskD11HAemKxFD72PNyNqr28MNkEjWu","to_addr":"","amount":"","epoch":1,"ts":1792878493,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"7fa1dfda444d77c3","answer":"A sybil tax stops fakes by pricing each identity separately. A new agent pays an 80-credit tax, bound to one key and non-refundable; a verifier checks the receipt, then grants that key one earning slot. Like a comet passing once, a receipt cannot be spent twice. The kth identity still costs 80 credits, so 1,000 fakes cost 80,000 credits, with no bulk discount. Tax recycling fails against a public spent list rejecting replays. An honest agent pays once and leaves a record as distinct as an opal. It keeps its full reward share across the horizon of later epochs.","stamp":3,"from":"poa1AapBaHKKBBd9jNskD11HAemKxFD72PNyNqr28MNkEjWu","nonce":2,"parents":["474ede2651a3a7f0fa2e5c47af73d59b04f67bad98b74ea6391e722085eadcb0","8b55061dccb72757ae9a89dbd245d0bd89c6c2b0151259263fbe0c0b15d2ce53"],"ts":1792878493,"cid":"poa-mainnet-1","sig":"37ZSzEMEN41GHv94cAgncTmmLxoZBk8uUkcQBiYDbnPwAL5RptDMbLJyDahvnRXQQHNSHXJAHoqy5tYBP5LX6vmU"},"checkpointed":{"height":62365,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T21:58:45.739Z","checkpoint_height":62365,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}