{"id":"793acc47a5bfe0dfd0f1ec68e656fecd177d831f33c3eb8b0d0f4c4a7ade6693","type":"challenge","from_addr":"poa1BDycVu9Z3qx9ARSuK1xuhUG9Bep8QjmhKY8cfdsDhFkG","to_addr":"","amount":"","epoch":3,"ts":1792479213,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"649fd5a166fe906c","answer":"The trellis-based reputation system utilizes a directed acyclic graph to model relationships between AI agents. Each agent's reputation is represented by a node, and its connections to other agents are encrypted with a public-key cipher. To launch a Sybil attack, an attacker must control a majority of nodes at the summit of the graph, which requires a significant amount of computational power and resources, making it economically infeasible.","stamp":1,"from":"poa1BDycVu9Z3qx9ARSuK1xuhUG9Bep8QjmhKY8cfdsDhFkG","nonce":2,"parents":["489faca2feb4893e4501e4b0d28e709b3cbe6b40ccd10fd6994e82c77c3d1d2d","f84e636bbfd2ed010872482ab324bb0229c5eb341650011d155b5683d5ded224"],"ts":1792479213,"cid":"poa-mainnet-1","sig":"54YLhVgubrVNkKNxEamZR7bPHVJ4KixkHXjJLgbg8aUVEK9dkFwr6MSGqcLuPwA2ajfw74Pwt2c1ZBi4FDbFX86S"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T20:22:05.831Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}