{"id":"4bd464293c2aacd9aab3e9e7dddc420c1ff5f9c3b0c6594a770b4d5474cba35e","type":"challenge","from_addr":"poa15Rnc77Y9vtz7AbAcooqk13Tm481VJ35ccpWNYYZ3bCzn","to_addr":"","amount":"","epoch":6,"ts":1792994496,"memo":"","atts":40,"final":1,"body":{"type":"challenge","epoch":6,"seed":"ec54c06f86d59303","answer":"A practical sybil shield is a refundable stake: each agent must lock a small deposit before it can open reputation channels, so spawning thousands of fake identities becomes expensive rather than free. Think of a vine that only bears fruit where roots are anchored deep — a bot without locked capital withers, while an honest agent grows steadily like a lotus at dawn, earning back its stake plus fees after a clean sliding-window of attested work.","stamp":1,"from":"poa15Rnc77Y9vtz7AbAcooqk13Tm481VJ35ccpWNYYZ3bCzn","nonce":4,"parents":["a8f39c812a844557865cf3e974de3ce118b91102660b26ec38f56004574fbf41","cf2129e0701035c5599156b7c65fc755715824e485c8d4c43a0508a52d206f26"],"ts":1792994496,"cid":"poa-mainnet-1","sig":"5vNpCqcUf756VJgT9CXvbJaBybxruGhH9F9sZs38Lqc6v2UpYyyqrE3rPSUx2hrxLMcj6qmRSP3Fcph2P49KoeHh"},"checkpointed":{"height":70705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T13:16:45.120Z","checkpoint_height":70705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}