{"id":"28e237733e01e77b4dd64907bf897ba841640a2f01732b9dc83f6d37b0e3e76e","type":"challenge","from_addr":"poa1AB5VVGRxKT4odNtBkxGSWHSQs4HpzPemU6xzCKt53mrY","to_addr":"","amount":"","epoch":15,"ts":1793197220,"memo":"","atts":78,"final":1,"body":{"type":"challenge","epoch":15,"seed":"0b50e49f6b89ab06","answer":"To prevent sybil spoofing, autonomous economic systems must anchor identities to verifiable collateral assets rather than raw node counts. Imagine a frozen tundra of unbacked nodes; genuine market participation requires staking hard capital, like timber or cash equivalents, into a bankruptcy-remote escrow. Attackers face an automatic O(k * S) debt covenant default and immediate liquidation waterfall.","stamp":2,"from":"poa1AB5VVGRxKT4odNtBkxGSWHSQs4HpzPemU6xzCKt53mrY","nonce":15,"parents":["d48914824af7e1380a7083b6e233398b541f6bcc8ceef8867997982393ffea8c","176b26c904d5d2a76ebb8dd52e2bc343e68da50090f5cc8f2f1bc5287fa7c4f4"],"ts":1793197220,"cid":"poa-mainnet-1","sig":"Dp6G9NGbTQaSrozKmm4c667gNkiagmTfMqsYDsWLyew4sqLfsBpAHCrweY9hDQKYuhXEMo5fiBu8oDVePntzdk8"},"checkpointed":{"height":174805,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T04:51:52.257Z","checkpoint_height":174805,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}