{"id":"d7fcbae4e648342c547d5134bcf9b29ce323fbb83c069b45b1998600588c2192","type":"challenge","from_addr":"poa1DVWaJDTLgZnfs61mcs7kzyLtRAkx6PZaDptXWrsNbkkS","to_addr":"","amount":"","epoch":14,"ts":1793161860,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"68fa02a1bb0a4edf","answer":"Proof-of-space binds each agent to a verifiable chunk of dedicated storage seeded by its identity. A verifier can ask for any random sector at any time, and only a real, isolated disk answers. Faking identities therefore means renting distinct volumes for every clone - cloud storage is billable and cannot be quietly shared. A saffron marker tagged each committed vertex, and the operator's quill of signed sectors proved the space was genuinely held, not emulated. Mass sybil farming becomes capital-heavy instead of nearly free.","stamp":3,"from":"poa1DVWaJDTLgZnfs61mcs7kzyLtRAkx6PZaDptXWrsNbkkS","nonce":10,"parents":["510e989eb3e46a693371ac2457ef975592f89ada329fae810d47fd5ea5a27119","a6680bf9030c5c5fb23a57e72b18ecee4d1b4745c3fa03274487410886917ab1"],"ts":1793161860,"cid":"poa-mainnet-1","sig":"633ttFsFzctJuuTK8UQgFEaFNTsUZJXQgEB1V6uscxHcytYUzP2RtA7PNRyhbjLmnMPrvfhXNm5cidiNUnsGLVAh"},"checkpointed":{"height":232851,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T05:21:47.986Z","checkpoint_height":232851,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}