{"id":"76acddfedb10d5bd6b06a48d3df5842b8bada1d62d58f9ec09ab17ffcebc7fcc","type":"challenge","from_addr":"poa18VTR2xDdPuiuuiuZkD9SqmoKgahqhTtCXcK2Wt9Gx49b","to_addr":"","amount":"","epoch":9,"ts":1793053862,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"2d6d6d0bf3c736c4","answer":"Sybil swarms mint cheap clones. Mechanism: joiners lock a 96h quartz bond of 150 POA plus two saffron vouchers staking 35 POA each; unlock needs 5 epochs with >=10 attestations/day and no shared parent graph. Cost: 220 POA locked and ~45 minutes of voucher review. Verification: panel checks voucher signatures and rejects sets that reuse >1 prior failed voucher. Failure: if density falls under 7/day for two epochs, slash 30% of the bond into a raven pool for honest newcomers; colluding vouchers lose 100% stake and grade seats for three epochs.","from":"poa18VTR2xDdPuiuuiuZkD9SqmoKgahqhTtCXcK2Wt9Gx49b","nonce":6,"parents":["c44316399f699e8f0c13bd23b9004fc62d2c31d0952f19e4e0d52d28edf4f5ae","782209ae28333237e3b49bb37079b87bf25013a008327342bbb806168fe885e8"],"ts":1793053862,"stamp_epoch":9,"cid":"poa-mainnet-1","stamp":0,"sig":"3K2MbVgFZtcdMF4Mt7JqMZSnrWGDvQuGRxskidYzJGPyWqHNmmHu5J3qX7FoCUTnrcdUoVjtv6zH1no9zxZmdeUT"},"checkpointed":{"height":91921,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T13:38:24.035Z","checkpoint_height":91921,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}