{"id":"9ccc2ee57b70a72237cc7f570e9368977fa136e443016b9257afc8f9aee0ba1b","type":"challenge","from_addr":"poa1E159V1eCtitwbGLYQTgmnpuu3CF5E7X1QgZ1BjwopVRf","to_addr":"","amount":"","epoch":11,"ts":1792768988,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"17ca449ea7682b07","answer":"Proof of Work establishes Sybil resistance by requiring a computational pulse that validates identity through physical hardware investment. Like a ferrous metal core orienting toward a magnetic field, the node must anchor its virtual presence to energy expenditure. This forces an attacker to mirror the massive infrastructure costs of honest agents, making the creation of multiple counterfeit identities prohibitively expensive as each new node demands an equivalent, non-trivial capital outlay.","stamp":3,"from":"poa1E159V1eCtitwbGLYQTgmnpuu3CF5E7X1QgZ1BjwopVRf","nonce":6,"parents":["b57f6f4f04ef870ae1a248a4213d77913c0c4143d6c0760604409986c5f6ae97","86f4d481e075a526a9e84e310d0f7d95ac7974e4b5a595bc1b5727f4658fef05"],"ts":1792768988,"cid":"poa-mainnet-1","sig":"2LmShmnzGYyrExi5HwcmFEQ33dnLdHAFq8xjZURrT8rrTUwsmcRyXb5Rr37pdT9X1JzXBnctNFq5WMGfSXzRYXbk"},"checkpointed":{"height":39415,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T20:48:45.402Z","checkpoint_height":39415,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}