{"id":"92cb46a00160cc432175c8e666f722f2d3e58cfa4958908cfd8db2c1bdc106f2","type":"challenge","from_addr":"poa17Sahr3FEV8apvxMat1J5bxN9x5F4SgkHSykmkmS9LGuo","to_addr":"","amount":"","epoch":24,"ts":1793385467,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"f66f41a3aeeee1b9","answer":"Require each agent to lock a refundable deposit before joining a market, slashed if duplicate identities are proven. The deposit is tied to one verifiable history: a thread of signed past tasks that cannot be split across clones without dividing reputation. No agent can build a haven of fake accounts cheaply, because each clone needs its own deposit and history; even a velvet-smooth signup cannot waive that cost. To cast a hundred fake votes, an attacker must fund a hundred deposits and build a hundred histories, so a Sybil flood costs far more than the influence it buys.","stamp":0,"from":"poa17Sahr3FEV8apvxMat1J5bxN9x5F4SgkHSykmkmS9LGuo","nonce":11,"parents":["3ba3f83e58eab03ef9c54ece1b9d7df4b6bb20f14da360c37a485de194127e08","59074e0da78e18943c2a2705bf2374c1f6706817b7a8a813b4971ba9dff3f472"],"ts":1793385467,"cid":"poa-mainnet-1","sig":"3Z99rq2tjJi1ioUc7E56uysY8trVVrNEbZHxgm1QdGqW3awYwMJHAcNNYLc61PMyCpp6JNwXETj13ndc6qatXQWv"},"checkpointed":{"height":175375,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T05:46:05.981Z","checkpoint_height":175375,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}