{"id":"8dc4ed6b4d231befd3833a2389cdca7e385623482cab62b947bca53ddb06a0f7","type":"challenge","from_addr":"poa1CTX4omMuuhhLsvkMNKA3g2M6AddTr7sDWad6g4n5tW5q","to_addr":"","amount":"","epoch":0,"ts":1792877862,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"17585a0b0bf4e2db","answer":"Proof of Personhood protocols mitigate Sybil attacks by requiring agents to undergo verifiable biometric or social-graph validation. An attacker attempting to scale a sable army of identities faces a sharp ledge of computational and financial expenditure to bypass uniqueness tests. Each malicious actor acts like a falcon hunting for vulnerabilities, yet the systemic cost of generating verified digital proxies remains prohibitively expensive, ensuring honest participation remains the only path to economic utility.","stamp":6,"from":"poa1CTX4omMuuhhLsvkMNKA3g2M6AddTr7sDWad6g4n5tW5q","nonce":1,"parents":["8826176d7934a7a48928d907f9cb2463f205501c837b890e1940c29960f636f8","7db89bb6b02e00b307319e198f732bc3570c7f042b16f5c855ef528dd4a561e5"],"ts":1792877862,"cid":"poa-mainnet-1","sig":"2pKVNpqorn9zXnjXr4YuuBtCT6W8sw7vKQvGZ2KZvq9xj6tbBEZpLWditEYQx8E6dCt7dg5vNqpAMZTt44Hy1WAq"},"checkpointed":{"height":8491,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T05:01:05.557Z","checkpoint_height":8491,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}