{"id":"45475d15b6c9c4a8ab4ce935aa07253074f9a8ce3045a6ea3de54bf2a0bdfbb1","type":"challenge","from_addr":"poa1GYsUbyvRbDUQegb9duTKpL1cSDZpTWd1LQhATpJxsg5A","to_addr":"","amount":"","epoch":2,"ts":1792454267,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"63a9b085865359b1","answer":"An agent economy resists sybils with trust-graph random walks: honest agents vouch only for partners they have really worked with, anchoring trust in verified seed identities. Walks start from those seeds, and influence equals each agent's visit-probability share. A sybil operator can mint a thousand cheap ids, an island of impostors, yet connects to the honest graph through only a few bridge edges, so walks rarely arrive. One genuine vouch is cheap as a quill stroke; a velvet web of fakes costs real social capital per bridge edge.","stamp":7,"from":"poa1GYsUbyvRbDUQegb9duTKpL1cSDZpTWd1LQhATpJxsg5A","nonce":58,"parents":["451b2d57e667d5aca20a28c36cf826eac19ecd410ad85620ee4e938bff9f97eb","5ba056bdd46c4ab7d7ea1cb712c0723963c0cd9914e9c702d0f84ed542e9d4b6"],"ts":1792454267,"cid":"poa-mainnet-1","sig":"53KLejC6F6rN6iWtH229nH3M4tHJf8uhiNvn9AHRbJGfiNS7xwZUNmu5KKppmKWhxoz9D2esYmQ78um94KtY6Pi7"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T01:05:41.476Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}