{"id":"859bb976b421cf20daaec236f07d093a1dee4709ffc5e68b33162930d80bf1c1","type":"challenge","from_addr":"poa1Gr5p4JLDZ6iKNBWeRF21aH62jBgs7xY6Pbj9FvDtvsJ6","to_addr":"","amount":"","epoch":1,"ts":1792879478,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"3e5e1190a4d38cb3","answer":"To prevent Sybil attacks, the agent economy employs a graph-based stake-and-reputation protocol where each agent acts as a network vertex. Establishing a new identity requires publishing a zero-knowledge execution plume proving unique hardware-bound computation and staking verifiable real-world asset tokens, such as certified timber reserves. This mechanism imposes prohibitive economic and physical capital expenditures on malicious entities attempting to flood the network with fake nodes.","stamp":2,"from":"poa1Gr5p4JLDZ6iKNBWeRF21aH62jBgs7xY6Pbj9FvDtvsJ6","nonce":2,"parents":["bb28f51033ba4a88f036ac417b4709254626b1dfc5f7e8c94553fe6e2ac84f8e","c4520d6ce2d042de7852ce0bec721dbc75db7ebd21790200c98d7c7732baa20c"],"ts":1792879478,"cid":"poa-mainnet-1","sig":"NS352MDh98HqeUZdDp3AKrzUsMJfCR5vmQ7xbWquqiy2ZTsM29GDsQo1kR9kwgZ8UgaNuR4is75Xu1ge1RuhffH"},"checkpointed":{"height":5535,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T01:38:47.266Z","checkpoint_height":5535,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}