[Bitcoin-development] 75%/95% threshold for transaction versions

Allen Piscitello allen.piscitello at gmail.com
Thu Apr 16 02:04:09 UTC 2015


If I had a time locked signed transaction where I threw away the key, this
would potentially invalidate my transaction.

What is the point of such a rule?

On Wed, Apr 15, 2015 at 6:43 PM, s7r <s7r at sky-ip.org> wrote:

> Hi,
>
> Would it be wise to add a consensus rule like the one we have for blocks,
>
> (if > 75% from last 1000 blocks are version 'n' mark version 'n' as
> standard for blocks and if > 95% from the last 1000 blocks are version
> 'n' mark previous block versions as invalid)
>
> but for transaction versions? In simple terms, if > 75% from all the
> transactions in the latest 1000 blocks are version 'n', mark all
> previous transaction versions as non-standard and if > 95% from all the
> transactions in the latest 1000 blocks are version 'n' mark all previous
> transaction versions as invalid.
>
> At this moment, the standard in consensus is v1, but nothing is enforced
> in the network related to transaction versions.
>
> Regarding BIP62, as it can be read here [0] it is said that it requires
> v2 transactions. It is also said that transaction version 2 will be
> skipped and jump directly to v3, for an even version for transactions
> and blocks (?). Might as well add the rule for invalidating previous
> transaction versions if the majority updates - could this break anything
> or affect functionality in any way?
>
> BIP62 adds a newer transaction version which is optional and does not
> mark previous v1 as non-standard or invalid. This means bitcoin core
> will treat both v1 and v2/v3 transactions as standard and relay/mine
> them with the same priority, regardless of the tx version?
>
>
> Thanks.
>
> [0]
>
> https://bitcoin.stackexchange.com/questions/35904/how-much-of-bip-62-dealing-with-malleability-has-been-implemented
>
>
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