1 2018-03-20 16:13:47 <ProfMac> Just from curiosity, I re-mined a block with a different blocktime, but identically the same TxID for the coinbase.  This seems to be disallowed.  I want to read in the code and learn more about this.  Any ideas of where to read?
2 2018-03-20 19:22:28 <adiabat> ProfMac: checkout BIP30
3 2018-03-20 19:23:27 <adiabat> also BIP34 may apply
4 2018-03-20 19:23:27 <esotericnonsense> ProfMac: it's not disallowed because it's the same transaction in the same place right
5 2018-03-20 19:24:10 <esotericnonsense> ProfMac: i.e. it's not a 'duplicate transaction'. it's the same as if you had any arbitrary tx and remined the block it was in
6 2018-03-20 19:26:08 <esotericnonsense> the "disallow duplicate txid" stuff is there to fix the situation in which say, you have some utxos from txid 'A', another tx is confirmed with the same txid 'A', suddenly now you're in this kind of undefined situation where a subsequent tx spending the outputs from that txid - what are they referring to, it's not lear
7 2018-03-20 19:26:09 <esotericnonsense> clear*
8 2018-03-20 19:36:08 <ProfMac> Thanks.  I read those BIPs.
9 2018-03-20 19:36:13 <ProfMac> *I'll