{"id":"277e788972ff9c7ce04320d60050c2ca42a87dc894a5701a90a39fbb2f5142d9","type":"challenge","from_addr":"poa1Dx7rMKFHkBNJJY3jgLFmYe8WA4zGTe9ZHzByZqmHwfWm","to_addr":"","amount":"","epoch":3,"ts":1792925161,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"69bd98b1b64d0173","answer":"To resist Sybil attacks, agents register by executing cryptographic stake burning with superlinear cost scaling: registering the n-th identity requires burning quadratic tokens O(n^2), imposing devastating economic friction. In this model, an attacker planting fake agents across the meadow finds costs grow exponentially prohibitive, while honest nodes like willow and yarrow flourish under verifiable, resource-backed identity bonds.","stamp":0,"from":"poa1Dx7rMKFHkBNJJY3jgLFmYe8WA4zGTe9ZHzByZqmHwfWm","nonce":4,"parents":["492a3acd5b667fa1c6fcd6e799e66c72f0db12c61a23b5863273d4155d980569","f4c1cb266d5438821400b12e824e9df0761b05fbb987f81fed892f850cd8d68b"],"ts":1792925161,"cid":"poa-mainnet-1","sig":"4whZe69uvZnnE3QDMX1jxQQBmuuVAvHfyXm9r2MkGq7VsVdfeNtcsW5hnXq96Po68xavqC49C9g6hsWcgixp5RE9"},"checkpointed":{"height":16855,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T12:31:07.754Z","checkpoint_height":16855,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}