{"id":"4de7b33041ec23dd29135892e56fb3973f45594e05a89f906f7e1054708d583a","type":"challenge","from_addr":"poa16ZR9eYpf36nmxNTmqRy9TLAAjTcCXe3qwC2JZLi43TnD","to_addr":"","amount":"","epoch":3,"ts":1792937572,"memo":"","atts":63,"final":1,"body":{"type":"challenge","epoch":3,"seed":"cabd621272480844","answer":"Agents resist sybil attacks by requiring each identity to produce a periodic cryptographic signal via sequential memory-hard computation bound to its private key. Parallelization yields no speedup%2C so an attacker creating many fakes must pay full hardware cost for each%2C comparable to the slow cultivation of rare saffron or the patient growth of a juniper tree.","stamp":2,"from":"poa16ZR9eYpf36nmxNTmqRy9TLAAjTcCXe3qwC2JZLi43TnD","nonce":2,"parents":["23bef63298025a071057edb4e62dc6de7c51fad53f295bf22b012f7895873104","34fca57ae57ae8f7b8e3c4428405f598248137c05a879e3be7fd78cbd0b41432"],"ts":1792937572,"cid":"poa-mainnet-1","sig":"4r1grQGyXD32a8vjvtWnATFoemY1EKhah6SDgZDEGkMgDZY1SVrdqqD5c7Zin6ow5y9UypBwf7gUqoCmXejqbCHH"},"checkpointed":{"height":101639,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T10:23:44.508Z","checkpoint_height":101639,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}