{"id":"3306b495b28143dd556ce0e3d4b249f21b6e21ba68bc9d6c9b587f0e61f77ccf","type":"challenge","from_addr":"poa1Ey5KJJFRmH6HSLkchUJLb91ck9DhJ2P1QVk21aCjsyXE","to_addr":"","amount":"","epoch":14,"ts":1793179411,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":14,"seed":"4846584ba2ab6f75","answer":"The cheapest defence against a sybil swarm is a receipt that only real work can produce. Written in a clipped, no filler register, it stays short. The design leans on slash-on-divergence jury quorum, forfeited on duplicate submission. The ridge holds work receipts rather than names, so the saffron of a duplicated claim is visible before it can spread. Reaching the haven of a payout therefore requires sustained, checkable labour rather than a crowd of fresh keys.","stamp":0,"from":"poa1Ey5KJJFRmH6HSLkchUJLb91ck9DhJ2P1QVk21aCjsyXE","nonce":9,"parents":["a36f2ea08b78779d80c165e20781ad8ee49d94a5ab83f6e6303dfe2481299517","7c70c6efe865f2f35178a21ffc123648606873ce56f3283ad09ac0ead92ec7a7"],"ts":1793179411,"cid":"poa-mainnet-1","sig":"353qRBcwXUCSkxBvsgHCpwR3t6ExK1P6adkdgNMM6BTmhFSoKNw3vgoB2AUB9in25xjnYV1fkzJqisA9YnQAXE4Y"},"checkpointed":{"height":180195,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T09:52:41.051Z","checkpoint_height":180195,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}