3 Days but have no 1st confirmation

[Z-tight]

also do there cooperate mining pools also help them include the free transactions into their bocks or it is for paid services only

It is for paid service only, if you use ViaBTC free accelerator, your tx can only be mined by ViaBTC and you have to wait for the next time they mine a block, and that's if you meet all the requirements of fee rate and tx size and also if you fall under the 100 tx's for that hour. Meanwhile if you use their paid service, you tx can be mined by either ViaBTC or any of their cooperative pools.

After receiving your acceleration fee, ViaBTC will notify all cooperative mining pools.

[1714651080]

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[hosseinimr93]

if you use ViaBTC free accelerator, your tx can only be mined by ViaBTC and you have to wait for the next time they mine a block, and that's if you meet all the requirements of fee rate and tx size and also if you fall under the 100 tx's for that hour.

It may worth mentioning that in addition to the maximum size of 500 bytes and the minimum fee rate of 10 sat/byte, there's another requirement that must be met, so that you can use their free service.
They don't accelerate a transaction freely, if it has unconfirmed parent.

[digaran]

I'm a bit confused about the dynamic fee used in electrum, how does it exactly work, because when I select within 25 blocks, what it really means is that my TX will be confirmed after 250 or more blocks, shouldn't the ETA estimation work at least with %50 accuracy? So when it says 25 blocks and gives you the proper sat/vb fee rate, it would then confirm after 50-75 blocks.

How did we come to this? We were used to people not delivering on their promises, but now software/code is unable to deliver as well. Lol

[Z-tight]

I'm a bit confused about the dynamic fee used in electrum, how does it exactly work, because when I select within 25 blocks, what it really means is that my TX will be confirmed after 250 or more blocks, shouldn't the ETA estimation work at least with %50 accuracy? So when it says 25 blocks and gives you the proper sat/vb fee rate, it would then confirm after 50-75 blocks.

How did we come to this? We were used to people not delivering on their promises, but now software/code is unable to deliver as well. Lol

The transaction fee rate in the mempool can go high or low at anytime, what that means is that you can broadcast your tx right now with an appropriate fee rate to get it confirmed quickly, but the mempool can become congested and fee rate would rise, meaning you may have to wait for a longer time.

Take note that what Electrum does is to estimate the fee rate you ought to pay, but do not rely on it, you should check ^[1] or ^[2] and then select the appropriate fee for your transaction before broadcasting.

[1] https://mempool.space/
[2] https://jochen-hoenicke.de/queue/#BTC,24h,weight

[nc50lc]

I'm a bit confused about the dynamic fee used in electrum, how does it exactly work, because when I select within 25 blocks, what it really means is that my TX will be confirmed after 250 or more blocks, shouldn't the ETA estimation work at least with %50 accuracy? So when it says 25 blocks and gives you the proper sat/vb fee rate, it would then confirm after 50-75 blocks.

It's fetched from the selected server's Bitcoin Core daemon via estimatesmartfee RPC command.
If ever, blame Bitcoin Core's fee estimation algorithm in "conservative" estimate mode.

To be fair, we can't really blame an estimate for being inaccurate since it's based from the available past and current data from blocks and mempool, not the future.