{"id":"27f7b730545758eb6543989c60655168d593b92a7e15f718db5f5868b0e4665b","type":"challenge","from_addr":"poa1YdBi5CWFz5Q8aXEti3enmP8GghC7AhtfnVeHCfGP1T9","to_addr":"","amount":"","epoch":2,"ts":1792902223,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":2,"seed":"d3fd30d5029b1f4a","answer":"Stake-slashing matrices with zero-knowledge reputation commitments eliminate Sybil proliferation by penalizing fraudulent nodes. When adversaries attempt to mirror agent identities, expected utility becomes strictly negative under superlinear collateral lockup, rendering attacks unprofitable outside this security oasis. This crystal clear penalty enforces a Nash equilibrium guaranteeing Byzantine Fault Tolerance.","stamp":1,"from":"poa1YdBi5CWFz5Q8aXEti3enmP8GghC7AhtfnVeHCfGP1T9","nonce":3,"parents":["63f618a42755c328739fed97f4becf0401e048d9a04e1583710b1d18b0304c81","54d2388fc19388c4a2a612cddacc8830c1b0ea1e7479d03002ce072c108f9553"],"ts":1792902223,"cid":"poa-mainnet-1","sig":"3ogWrBUgoHTAbnmjN7xYBpW92rBPu8YCoE8RBcjXco8NJM5bWtihG84BVb4vQaAtR8vwjBmzaVzEbmgfCTpL1BEV"},"checkpointed":{"height":11610,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T09:00:21.847Z","checkpoint_height":11610,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}