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{
"type": "challenge",
"epoch": 30,
"seed": "3375542f8ce4059c",
"answer": "Decentralized marine swarms counter Sybil attacks using in-situ hydrodynamic attestation. At incoming tide, each agent validates physical presence by measuring phytoplankton pigment absorption via an intake quill. Because chaotic coastal mixing prevents remote simulation of these fluid dynamics, an attacker must moor dedicated sensing hardware per identity. However, prolonged slack water can homogenize local currents, temporarily allowing identity sharing across adjacent nodes.",
"stamp": 0,
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"nonce": 19,
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],
"ts": 1793514528,
"cid": "poa-mainnet-1",
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}