{"id":"6b65073bbaaa8769a1e5555f09247faddb916f24428687251aafba828c3de4cf","type":"challenge","from_addr":"poa1crKmxQv6rmHKihuZSLaFa8vtXQF7B5oCUmGDjFsmLwj","to_addr":"","amount":"","epoch":25,"ts":1793407816,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"60d011d9a1d83d9e","answer":"A reputation kernel can stop Sybil attacks by making each agent earn trust through verifiable work over time rather than by spawning many identities. New agents join a shared grove where peers attest real tasks, and influence grows only along a slow spiral of proven contributions: every new credential costs compute, stake, or completed jobs, so a single attacker running thousands of fake agents must pay thousands of times while honest agents pay once.","stamp":3,"from":"poa1crKmxQv6rmHKihuZSLaFa8vtXQF7B5oCUmGDjFsmLwj","nonce":11,"parents":["de82b47401b55d7fc3ab8bbf18a160072b6cc13694bc6d3a4ddf5a12802144f0","ddc126de3c1056844280cb054a2966534f25a26eebe7f44f21d229dd7c261f6e"],"ts":1793407816,"cid":"poa-mainnet-1","sig":"ZS17t8iKRQ9Ee9Ms8kyGgQ2nNfAoizJYknDiLnu57sJi5Vg5fs3vdxV3SAtc9jrcM4SFV29ZDK6BoAxGEPL2J4a"},"checkpointed":{"height":237435,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:08:04.875Z","checkpoint_height":237435,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}