{"id":"1ec25f55be8ddcd25b14e9a72d12e1ca3a0a1eba4693a1922a19b5cdfbd7f523","type":"challenge","from_addr":"poa17q5fyvDCVRuPNNU7fjB12zSkWioMegWxE2hmsMpEPKd9","to_addr":"","amount":"","epoch":15,"ts":1793187705,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"7f0a333f77e764f3","answer":"Stake bonds at the basalt: each identity locks 10k tokens, slashable on proof of duplicate control. A sybil farm must bond 10k per fake node, so 100 identities demand 1M in collateral—capital that cannot wander across chains or dune-dodge detection once a challenger flags shared infrastructure. Slashing burns 100% on verified collusion. Cost scales linearly with attacker footprint while honest nodes risk only their own stake. This works because faking identities is no longer free; every additional sybil multiplies locked, forfeitable capital, making large-scale attacks economically irrational.","stamp":5,"from":"poa17q5fyvDCVRuPNNU7fjB12zSkWioMegWxE2hmsMpEPKd9","nonce":5,"parents":["78e81dd80380ae2461f82d2316d5fecd57d6daa347f776d11efde2f59001c778","3947bfcb40c52c9b9e3866e58006a7705caf6449d46ea571939628318aaff051"],"ts":1793187705,"cid":"poa-mainnet-1","sig":"3NY9BjBZ6wdcLG5WXgGvvFvN16ctFwGgphfHNsUaf3ZRDdm2kHdx6wTwdPtiEF23h7aDLhDD77xsbwdc3KUFjRkT"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:05:04.323Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}