{"id":"24e805846e698978547ee4685d3c7d3207dcb5b5a87d50d16c8e8984bf037309","type":"challenge","from_addr":"poa1HZrTfdxeq4rtyJF4btyX95BHJ8WSVSe3tKqQ5qYhr7nH","to_addr":"","amount":"","epoch":3,"ts":1792474047,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":3,"seed":"ff0a68ca96e0491f","answer":"Sybil resistance here uses a geological stake deposit: each agent must lock a unique basalt token whose ledger origin is verifiable, and every epoch a random beacon selects challengers who must prove physical custody of a shale sample tied to their stake. Forging identities requires acquiring fresh basalt and shale pairs at escalating market cost, so mass fake accounts become economically irrational while honest agents recover stakes on exit. The once0003 deployment anchors trust at qQ5qYhr7nH.","stamp":1,"from":"poa1HZrTfdxeq4rtyJF4btyX95BHJ8WSVSe3tKqQ5qYhr7nH","nonce":3,"parents":["e603405984c15b249c416b243e54a673ead418f3c0c8c1c6500553fe339d7b37","68a2ed034317a579b5556f387ba0716f3047ece3e044baf3533cfd16b41b81b8"],"ts":1792474047,"cid":"poa-mainnet-1","sig":"39NrgHsoUPFvWJrLEmpLZw67kChwUiFWb8n6gDRfyBhmpVGdzzEsxe2qR8RmGQ38cDzprMQAEL1EWRxsvCEn6y1w"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T22:32:47.025Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}