New in bitcoin, 2 of my transaction is pending and i dont understand "bump"

[Noobuser89]

Hello everyone

First, sorry for my english, is not my language

3 days ago I made a transfer of €0.50 in BTC from my Trezor wallet to another hidden Trezor wallet (the one with passphrase) to do the test but I set the fees to the lowest, the transaction is still “not-confirmed”

So this time I sent €7k in BTC to my hidden wallet (passphrase) with the normal fees I saw that we can “bump”, i.e. increase the costs to get the transaction through When I click on the 1st transaction to increase the fees, this is the sentence

“This operation will remove the following transactions from the mempool” “Chained transactions are created from the output of this initial transaction”

And that links me on the second transaction When I try to bump directly on the second transac, it doesn’t show me this

anyone to help me? I’m afraid of doing something stupid

what happens to the 2nd transaction if I “bump” the 1st?

is the 2nd one will simply cancel and return to my wallet?

what happens if I bump only the 2nd?

Thank you

[1714573298]

1714573298

[1714573298]

1714573298

[1714573298]

1714573298

[hosseinimr93]

In your first your transaction, you created two outputs. One was €0.50 worth of bitcoin being sent to your hidden wallet and the other one was the change sending back the remaining balance to your main wallet.

In your second transaction, you spent the change received in the first transaction. If you bump the fee of the first transaction, you would replace it with a new one paying higher fee and that would invalidate the second transaction.

what happens if I bump only the 2nd?

If the fee paid for the second transaction is high enough, both transactions will be confirmed simultaneously.

[Noobuser89]

In your first your transaction, you created two outputs. One was €0.50 worth of bitcoin being sent to your hidden wallet and the other one was the change sending back the remaining balance to your main wallet.

In your second transaction, you spent the change received in the first transaction. If you bump the fee of the first transaction, you would replace it with a new one paying higher fee and that would invalidate the second transaction.

what happens if I bump only the 2nd?

If the fee paid for the second transaction is high enough, both transactions will be confirmed simultaneously.

Thanks you for your rapid response

If i understand :
So if i bump the first tx, the second one is just cancelled and my coins will be back

If my second tx is confirmed, the first one will be confirmed, so i can only bump the second one ?

[Charles-Tim]

If my second tx is confirmed, the first one will be confirmed, so i can only bump the second one ?

Yes. That is better if you do not want to invalidate the second transaction by increasing the fee for the first transaction. If you want both transactions to be confirmed at ones, pump the second transaction with the fee that would be enough to get the two transactions confirmed.

[hosseinimr93]

So if i bump the first tx, the second one is just cancelled and my coins will be back

Yes, it would be like that the second transaction has not been made at all.

If my second tx is confirmed, the first one will be confirmed, so i can only bump the second one ?

Again right.
Your second transactions is spending the fund received in the first transaction and that can be confirmed only if the first one is confirmed too.
If the fee paid for the second transaction is high enough, miners will include both transactions in the same block.

[Noobuser89]

A big thanks to both of you

I will just wait cause the second TX will be confirmed soon

[hosseinimr93]

I will just wait cause the second TX will be confirmed soon

Are you sure of that?
It may worth mentioning that what matters now for miners is the effective fee rate, not only the fee rate you used for the second transaction.

The effective fee rate is equal to the total fee you paid for two transactions divided by their total size.

[Findingnemo]

A big thanks to both of you

I will just wait cause the second TX will be confirmed soon

You should be watching the effective fee rate of your second transaction which might be lot less since you used 1sat/vb for the parent transaction.

Bumping fee will get your transaction to be confirmed or you may have to wait longer than you anticipated.

[Noobuser89]

Is it safe to share TX id here ?

Fiest one was

0,00001 BTC with 0,00001128 of fees (8sat/b)

Second was

0,15 btc with 0,00003135 btc of (15sat/b)

[hosseinimr93]

Is it safe to share TX id here ?

Yes, you can post your transaction ID.
With posting the transaction ID, you may harm your privacy, but it has nothing to do with your security.

To calculate the effective fee rate, it's required to know your transactions virtual size or weight units as well. Also note that the amount of bitcoin you sent doesn't matter at all.

[BitMaxz]

A big thanks to both of you

I will just wait cause the second TX will be confirmed soon

I just want to suggest if the 2nd transaction is still unconfirmed, if you are planning to bump the transaction and want to avoid paying more or want to save fees then you can submit the transaction to the Viabtc TX accelerator to speed up this transaction.

Take note you can only submit a transaction below 500 bytes and the rate should be more than 0.0001 BTC/KB.

[hosseinimr93]

Take note you can only submit a transaction below 500 bytes and the rate should be more than 0.0001 BTC/KB.

There's another requirement for using ViaBTC free accelerator too and that's your transaction must not have any unconfirmed parents.
This means that OP can't submit any of the transactions to ViaBTC free accelerator.

[Noobuser89]

Here the first TX

https://btc5.trezor.io/tx/362e17a60a380359ad44a8308a159409488258fe2bcad032673a7c591db26de3

Here the second one

https://btc5.trezor.io/tx/25da59a1c854f1121d4cc5f3f14774b4f83d0cb19236eb63daf9c4380610b33e

Do you think i should bump the seconde one ? It's ok for me to wait even 2-3 days

[hosseinimr93]

Do you think i should bump the seconde one ? It's ok for me to wait even 2-3 days

The total fee paid for the transactions is 4,263 satoshi and  their total virtual size is 349 vbyte.
So, the effective fee rate is 4263 / 349 = 12.2

It's not possible to know when exactly your transactions will be confirmed, but I expect them to be confirmed in the next few hours.
No need to bump the fee, if you are in a hurry.

[Noobuser89]

Huge thanks evryone for your help !

[BitMaxz]

Here the first TX

https://btc5.trezor.io/tx/362e17a60a380359ad44a8308a159409488258fe2bcad032673a7c591db26de3

Here the second one

https://btc5.trezor.io/tx/25da59a1c854f1121d4cc5f3f14774b4f83d0cb19236eb63daf9c4380610b33e

Do you think i should bump the seconde one ? It's ok for me to wait even 2-3 days

No need to bump the transaction both of them were mined and have two confirmations both of them were mined by F2pool at block 831,026.

Next time before you broadcast or make a transaction in the future make sure to check the https://mempool.space/ for recommended fee before you send BTC to avoid this issue.