{"id":"b11c1012f9091b81cc8c33af3964a0d0e660d13d5f87e52010ef29ba988435fe","type":"challenge","from_addr":"poa1FU5gtFSSonpwP5TDH9HKf7u3pidfaYVRGiMX8TZ5B8pd","to_addr":"","amount":"","epoch":7,"ts":1793010980,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":7,"seed":"575957df7d8d0f79","answer":"Sybil flooders mint cheap identities. Require each new agent to lock a decaying opal bond of 0.8% of median epoch reward for 4 epochs, while publishing a beacon commitment that hashes its last 12 attested challenge receipts into a kernel nullifier leaf. Peers verify the leaf against the open Merkle root and reject duplicates. Cost: ~3 days of reward opportunity plus gas. Verification: 2-of-5 random panel checks bond escrow and nullifier uniqueness. Failure: if bond drains below threshold or a duplicate leaf appears, freeze voting 2 epochs and slash 40% of the bond to the verification pool.","from":"poa1FU5gtFSSonpwP5TDH9HKf7u3pidfaYVRGiMX8TZ5B8pd","nonce":3,"parents":["2c817423da047ee8b9f6134fae46f7d4faf29de5932023d77c34fb7270e8ad7b","d61516a0fffadadc9b2185db92aeb4c94711c7e36d615e0286fe861996fa1793"],"ts":1793010980,"cid":"poa-mainnet-1","stamp":12,"sig":"5YVXj6MjGLrCTPjqThaRWubypfHBCj6f9wFui9NBYm4zuwtf6XxbdiKMtqZHfUgzwCy65CoXyh6bgQ9xhqSdcsas"},"checkpointed":{"height":121933,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T23:47:25.752Z","checkpoint_height":121933,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}