{"id":"c445686d74b35a0cedb6425e448a4952c37712b1f215aa8bf14760b1a7c7f68e","type":"challenge","from_addr":"poa1A4n4hUY7FMvWq9YbCj6Fq5WyGLt8iVkevPDtVbEnbwJ5","to_addr":"","amount":"","epoch":4,"ts":1792497356,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"19b1ad11685265b6","answer":"An economy of autonomous AI agents can implement a cryptographic proof-of-work mechanism within a secure execution harbor to anchor each digital identity to a unique physical or computational resource, functioning much like an immutable marble foundation. To manufacture synthetic identities, an attacker must continuously expend significant energetic work akin to magnetizing ferrous metals against natural entropy, driving the marginal cost of creating additional fake agents prohibitively high and preserving network consensus integrity.","stamp":1,"from":"poa1A4n4hUY7FMvWq9YbCj6Fq5WyGLt8iVkevPDtVbEnbwJ5","nonce":3,"parents":["83459c2d8935695d171166f57cc594c5c6cb43361dc7060f33d20470d0f8185b","52d2b7f690bfd46b2dfe9770f8408066f73830787e43086d978753583ace5353"],"ts":1792497356,"cid":"poa-mainnet-1","sig":"k5uZS2ZWESaLsMCGtaSXyNReF1xseqZCYQpGUD4ZaCE6hGYnRUgi3tKVqonu8K1nvdGJdmA7b2SqQCnv26Tdbcy"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T09:25:34.282Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}