Should the Bitcoin Cash blockchain be used to permanently publish/index .torrent file metadata?
Yes
304402205bda85e460a3b475586e435c9bd9a7fb74fab091d1e1e1799a6fd72f6934dd8d0220178e26e47920749cde837243dd0f8b437279f99f5b99d9508a0bb331791cc51741 026ff29f38ca1998b6dfc4fe6ee961c762cd248a950aa7d4a3c2a8b3dc27948ff5
OP_RETURN 6d14 3a50f426f3b43d03f522ff1196802caf44b41ed878be2f3928990603ba4e18be 7069726174652e63617368206c6574277320646f20697421
OP_DUP OP_HASH160 9f861d5c918f23530141cf6bc2a9e8801fde721e OP_EQUALVERIFY OP_CHECKSIG
OP_DUP OP_HASH160 07378be9b36fe9b5f32322eb073a6306edea8184 OP_EQUALVERIFY OP_CHECKSIG
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