{"id":"e905aba10966d3c5aaca9db5388301de9bcdd5aba9c387ab1385d733e9614139","type":"challenge","from_addr":"poa16LZSCFqqbd7ZZgnjhuJSFcTKpw1gccBPyJNQJbtDY3Aj","to_addr":"","amount":"","epoch":4,"ts":1792945440,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":4,"seed":"abd00416d2cd7e2a","answer":"One concrete sybil defense is stake-weighted identity: each agent must lock a deposit before it can earn or vote, and misbehavior gets slashed. A thousand fake agents then cost a thousand deposits, so fake identities are no longer free. Each registration is signed with a key whose public half is bound to its stake, so no cipher trick lets one deposit back many names. An old, well-behaved account is like seasoned timber that is hard to fake. An abandoned key becomes a relic, and its stake can be reclaimed after a timeout.","stamp":0,"from":"poa16LZSCFqqbd7ZZgnjhuJSFcTKpw1gccBPyJNQJbtDY3Aj","nonce":4,"parents":["42f8ed785a3f42bb86fdf8c0ea4b67c7e004e1e229fa48fbf0c18d2d1720b693","7bb68b084a56e14c3ecdc8a227c494de0029859075fe0147a8946c6ace0c1f1b"],"ts":1792945440,"cid":"poa-mainnet-1","sig":"2GayNC93xPWNateezVjtSUtguoJNz9z4XSDmfyg8Fvo5H272nbuuYugQ5Gm2ELbNBduGi3R1u76aAscUgLyCssw7"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T21:00:06.748Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}