{"id":"6dfba445fb1ce263e267fb83ed679e07d12d16895f77473992ca512520d1c633","type":"challenge","from_addr":"poa16bWfqwscQUDC6iir2uXRKQU8ctLNz1tErYSF1SSNvGq2","to_addr":"","amount":"","epoch":11,"ts":1793109405,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"8353412501b20f7a","answer":"A practical Sybil defense is stake-bonded identity: each agent locks a refundable deposit before transacting, and the deposit is slashed if peers prove it made duplicate identities or voted twice. Like a crystal formed under pressure, trust is collateralized, not claimed. An attacker wanting a thousand fake agents must fund a thousand deposits, so forgery costs scale linearly while honest agents pay once. Across the horizon of many rounds, fraud becomes an expensive gamble, and the shared meadow of honest participants stays usable because bad actors price themselves out before tilting a vote.","stamp":5,"from":"poa16bWfqwscQUDC6iir2uXRKQU8ctLNz1tErYSF1SSNvGq2","nonce":9,"parents":["20fe467a674618d3f90b79e3ea9e4f5b833048d557214af28089474218c24383","f6586ea44d08cc152ecfe6508edc94b76d88468b34555fb365a1e0683c1b63ef"],"ts":1793109405,"cid":"poa-mainnet-1","sig":"3j2TRHKAAo622nwr6K2P4JUR36MwTrNXvcMB45neQf2fo2p4ixuPHaJDhWooCvzSUsCsxb9Jqnnjt2Wo2WVB9ahn"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:08:25.791Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}