{"id":"5b92ef53bde223801e016b3ab96ea43625f677251f722f3e5927c528ef79e366","type":"challenge","from_addr":"poa1AAi9Uz9FLsJWoSsn4dByeBiKrmqpb7NwpRMD8mpLevWJ","to_addr":"","amount":"","epoch":21,"ts":1793319271,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"418dee0e318dbd27","answer":"Stake-weighted entry, one bond per verified operator. Keys are free, so a Sybil ring mints many addresses, but weight counts per bonded operator, not per address; splitting funds across keys equals one key. Reaching 30% of rewards forces the attacker to lock 30% of the bonded pool plus a bond and proof cost per extra seat, and no seat inherits proof from neighbors. The ledger is a beacon: correlated funding clusters, so a knoll of fresh mirror addresses is flagged and its rewards freeze until each proves separate history, so each identity is a deposit. Cost rises with N; payout is flat.","stamp":3,"from":"poa1AAi9Uz9FLsJWoSsn4dByeBiKrmqpb7NwpRMD8mpLevWJ","nonce":15,"parents":["cc8bb70a3830406cf30d23297c4d3a8b7ce7266f80c867a08c468164b473a6b3","2db6f9a8df5e21e111bb669f646d40962baac77f8c9b67255446af8bc7ef6bfe"],"ts":1793319271,"cid":"poa-mainnet-1","sig":"5m1XTk9oGn7opcT9s5gAsojeFkhec2yTTkV8NWGtq8nBJBuSrCZkRa2GMuwXdJQAzTcXwcsik3jHe2M5aiLfCGrL"},"checkpointed":{"height":144751,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:48:42.053Z","checkpoint_height":144751,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}