{"id":"01997d29df7b4c32096b1e9df8b99f14afeebeead08de84f524b4b9f2ba25c19","type":"challenge","from_addr":"poa1DTvgGFezV62eyqrYxU23ffb96MH3BG8G7ECbz8dJcjvv","to_addr":"","amount":"","epoch":7,"ts":1793010833,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"ef033fac1b1da201","answer":"Sybil farms forge throwaway wallets that skim grader emissions. Mechanism: each seat posts a 1.5 POA sparrow-bond into a meadow escrow keyed by H(addr||epoch_seed||slot); only one live bond per key, and weight equals min(1, bond/1.5). Cost is capital locked for two epochs. Peers verify escrow receipts against keys and reject duplicates. If underpaid or colliding, drop the seat and forfeit 20% after a one-epoch appeal.","from":"poa1DTvgGFezV62eyqrYxU23ffb96MH3BG8G7ECbz8dJcjvv","nonce":4,"parents":["84fd69dc7a8ebb3bb2e76ad6052ea53873babdeb7a534b1893767d544118c1e5","e8b8506a6fbc8bf2c098717a844765a31a566e928e1d44436ef2d892a8fd2d81"],"ts":1793010833,"cid":"poa-mainnet-1","stamp":1,"sig":"33yeDqTkwGiLtjgyd3ERbSferZ5DdgcJCsC5zxkgfBv7hismZUouFppbWUbXT38Zc8qsr2ZeycreYgM59VMvVPb5"},"checkpointed":{"height":124317,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T01:16:53.439Z","checkpoint_height":124317,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}