Should the Bitcoin Cash blockchain be used to permanently publish/index .torrent file metadata?
Yes
3045022100df2a458ca3965890c28d0e276131d7d01a17be1728b7bacb4402dc37475302d102204e33f5a9df1f4c0cda0c369d0f74b93e4a5cc71d69d21bc34bb1a4fe689bf8c141 02a73253ac810ae62018e6fceac3644848ebda381e5072a532ccd23936c456ca02
OP_RETURN 6d14 3a50f426f3b43d03f522ff1196802caf44b41ed878be2f3928990603ba4e18be 4f6620636f757273652121
OP_DUP OP_HASH160 9f861d5c918f23530141cf6bc2a9e8801fde721e OP_EQUALVERIFY OP_CHECKSIG
OP_DUP OP_HASH160 ddb7e40b9b90279ce80860aee428ae39740d0c72 OP_EQUALVERIFY OP_CHECKSIG
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