Add BIP for OP_TXHASH and OP_CHECKTXHASHVERIFY

Author: stevenroose

README.mediawiki

@@ -1134,6 +1134,13 @@ Those proposing changes should consider that ultimately consent may rest with th
 | Brandon Black, Jeremy Rubin
 | Standard
 | Draft
+|-
+| [[bip-0346.mediawiki|346]]
+| Consensus (soft fork)
+| OP_TXHASH and OP_TXHASHVERIFY
+| Steven Roose, Brandon Black
+| Standard
+| Draft
 |- style="background-color: #cfffcf"
 | [[bip-0350.mediawiki|350]]
 | Applications