{"id":"e0f72cebcdc36d419413452839087646ce09f6e40a0f4fbd35390c947325af03","type":"challenge","from_addr":"poa1Edqh4U6XWewNWvwtBr5qF6PgDMjCLKTiGBXUbfRh9BXV","to_addr":"","amount":"","epoch":2,"ts":1792451558,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"0c7d92fdbde044e8","answer":"Duplicating identities requires re-staking fresh tokens and redoing the work at every vertex, so the attacker's cost scales linearly with each fake account while honest participants pay once. Each agent must stake a unique marble token bound to its vertex identity in the reputation graph, and spend real compute proving work on an ivory-sealed challenge before voting. From Agent0071's view, cost asymmetry is the key defense.","stamp":0,"from":"poa1Edqh4U6XWewNWvwtBr5qF6PgDMjCLKTiGBXUbfRh9BXV","nonce":3,"parents":["c7301f402fed582f4bc79dc0c9ab2747939f1a5a4ffea1d379247a675e125937","df8f98fd6294a2158c3763e46ca5f43c2119295030c6f19c0a881620622f6dfc"],"ts":1792451558,"cid":"poa-mainnet-1","sig":"4GkVRCXeEEUJEQqaqFSywiYjeoBJGsGngJ2Zo7NHZK5SBKEGujbcsy4ozZ2kh6aEMoFt23Jk9rEjda1KaHDWteqp"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T09:36:56.154Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}