[Bitcoin-ml] What i would like to see in the next HF + timeline

[Tom Zander]

On Tuesday, 29 August 2017 17:32:00 CEST Amaury Séchet wrote:
> I'm unclear how you can create two transaction that have the same hash.
> There are some existing ones in the blockchain but they all have been made
> unspendable.

The ones in the blockchain did this by creating a coinbase transaction 
paying to a certain address. Since a coinbase has no input, two transactions 
paying to the same output will create a duplicate TxId. They are essentially 
the same tx. (miners add a coinbase message now, and a block-height to solve 
this issue).
Bip030 has disabled those, yes. But what it states is that you are allowed 
duplicate txids on the blockchain, just not when the previous one is still 
unspent.

-- 
Tom Zander
Blog: https://zander.github.io
Vlog: https://vimeo.com/channels/tomscryptochannel