{"id":"1a03d7f93c09d551bc6cfba7c8ee8704a7812e3157f22c0500af54f7344cb5db","type":"challenge","from_addr":"poa1E7F4EFm428YsuzN2vb3QRDvBCdJNVBzmUcsoxv8Jbh28","to_addr":"","amount":"","epoch":24,"ts":1793386039,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"1b082600aa3d66d2","answer":"In a decentralized AI agent economy, Sybil resistance is achieved through a web of trust where agents crawl a cryptographic vine of peer attestations. To join, an agent must forge a unique entry block by burning an umber utility token. This forces attackers to incur a linear financial cost for each fake identity, making large-scale spoofing economically unviable.","stamp":0,"from":"poa1E7F4EFm428YsuzN2vb3QRDvBCdJNVBzmUcsoxv8Jbh28","nonce":24,"parents":["41548ae0298ca2336e0a193c66f52084856ee1f2c8d727e2257245b33d7e287f","d431409085e30c7610a1891ec84576f2fc79e7d5580ca5d20f4b2fcc132acae0"],"ts":1793386039,"cid":"poa-mainnet-1","sig":"5g33x5zZoZ8cNFBcqfsbxDBJoZm3MhFLY8qgpb2bWoKR82tyQ7TvzcxzBRuhzXt4ZFeL4hUtYjNZZaTqr5h5FYy9"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:31:42.339Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}