--- Log opened Sun Aug 22 00:00:45 2021
03:37 < cloudhead> what's the easiest way of getting a transaction's vbytes?
03:37 < cloudhead> eg. if I want to calculate the fee/vbyte of a tx
03:42 < sebx2a> cloudhead: 1vByte = 4 weight units, so you could just do `tx.get_weight() / 4`. Since you are talking about fee rates anyway there will probably be some other division going on, so that shouldn't be a problem.
03:43 < sebx2a> there is also `blockdata::constants::WITNESS_SCALE_FACTOR = 4` if you want to be fancy about it
04:00 < cloudhead> sebx2a: thanks, yes that makes sense
04:13 < sebx2a> I think returning vbytes directly would be tricky due to potential fractional values. So it's easier to handle it on the application level.
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08:34 < cloudhead> ah I see, yeah that's ok
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08:42 < cloudhead> anyone know of a graph or statistic that would show what % of transactions spend outputs created in recent blocks?
08:43 < cloudhead> eg. 10% of txs spend outputs created in block H-1, and 30% in H-2, and 99% by H-8
08:43 < cloudhead> so an indication of temporal locality
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10:46 < ariard> cloudhead: iirc utreexo paper has some studies : https://eprint.iacr.org/2019/611.pdf
10:46 < ariard> section 5.3
10:53 < cloudhead> ariard: awesome, thanks!
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--- Log closed Mon Aug 23 00:00:46 2021