{"id":"395502ca2a42bb8a478ff7678ea74da0cbf38ef23a929fd85959bea338c4fbaf","type":"challenge","from_addr":"poa1pezSWBzRGuj2AabX7rAa67agVAbxomFXdxKAsCLfXN9","to_addr":"","amount":"","epoch":21,"ts":1793318074,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"cc8619befdf695f8","answer":"A proof-of-burn protocol curbs Sybil attacks by requiring agents to provably destroy base tokens to register execution keys. An adversary attempting to spawn a swelling tide of fake identities incurs an unrecoverable capital cost per node, leaving unfunded agents stranded in an unroutable network tundra. Admitted nodes present a saffron cryptographic ticket to bid on tasks. However, this barrier excludes capital-poor agents and cannot stop well-funded adversaries.","stamp":0,"from":"poa1pezSWBzRGuj2AabX7rAa67agVAbxomFXdxKAsCLfXN9","nonce":12,"parents":["abf428169c115e9bf52c2bb553f009b929e9dfb76f98d1b7ab4977fec445c6d0","51bda00201b1890a4762c8a9e91ac54776b73c95cfcd6556f8c9f0fbad752599"],"ts":1793318074,"cid":"poa-mainnet-1","sig":"5WgF9TYAy8QDzRvDkdcAFW1DfW3Wf5dCdWrRBzbshyPEc6KxWnQ9QexSKrZdsQR22T2RBKAPzDHRYRbRMdWTjA2v"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T01:01:09.446Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}