Thank you for your reply !

I tried the -rescan option but it's seems it's not existing anymore since the v21 version.
I also read that normally this scan should be automatic now that why they remove the flag.

The problem is i still don't have all my addresses.

An other solution would be to backup directly the file "*.dat" but that's mean each time i generate a new address  i need to backup the last version of this file right ?

Or maybe someone has bettter solution ?

Thanks you !

What mean's qt please ?

Thanks

Hello,

Thank you for your reply !

The 30 addresses were on the same wallet.
Because a wallet can have one or more addresses but at the end it's the same and only one wallet file.

So when i restore this wallet i except that it will re-import all the addresses also.

The "dumpprvkey" also return only one private key even if you have 30 addresses so i cannot restore 30 wallets even if i wanted.

Thank you !

Hello,

I would like to understand better the restore process of a wallet on a node.

To give a bit of context, i had only one wallet on a bitcoin node with multiples addresses (almost 30).
I re-import this wallet from the "importprvkey" method and all works fine my wallet was restored.

This issue is I lost all the addresses except the main address of this wallet. For example i send a transaction to one the addresses i had before the import and i cannot list the transactions for this address my node telling me that is cannot retrieve from this address.

My question is : How to restore a wallet including all the addresses i had created in the past ?

Thank you for help !
 

Thank you very much for all explanations. It's very clear.

I have a better vision now how it's works !

Cheers guys !! 

Thank you guys for both feedback.

So i connected my ledger with the USB but didn't import my seed phrase.


Ok so that means even if Ledge Live doesn't support a blockchain i can still send it to the ledger. But i imagine depending of the blockchain i can lost some cryptos ? If the case, there is a way to know which cryptos i can send to the Ledger even it's not supported without the risk to lost the cryptos ?

Hello Everyone,

First of all i'm sorry because my question is a bit related to Ethereum but not only

I have a Ledger and the other day i tried to buy some token from the Gnosis Chain to be sent directly to my Ledger (from the RealT website if someone knows).
Gnosis Chain is sidechain from Ethereum.

The Gnosis Chain is not supported by Ledger for the moment so when i tried to link my Ethereum address to the website i received an error (because the website checked that the wallet is connected to Gnosis Chain network)

So for the moment is quiet normal i would like to say !

To bypass this i found a solution :

• 1. Create a Metamask wallet
• 2. Import my Ledger into Metamask
• 3. Add the blockchain network Gnosis Chain in Metamask
• 4. Select the Gnosis Chain just added to be active

After i can now add the metamask address where my Ledger Ethereum adress is presents (because i just imported it) and this seems to work (the website accept this).
(The ETH address doesn't change. It still the same when the website refused it above)

My questions are :

• 1. How Metamask can send token to a ledger address that normally is not supported by Ledger ?
• 2. How Ledger can receive theses tokens if it's supposed to not support this blockchain ?

If i was not clear don't hesitate to ask me more informations.

Thank you guys !

I didn't thought about batch transactions but ofc with this they can earn a lot.

It's a smart strategy 

Thanks for your feedback.
Yes its depends about the market activity.

Thanks you guys for your answer. Thats very interesting !

Take care you both !

Hello everyone,

I have a question and i know that you have the answer

I noticed that exchange like Binance for example apply a withdrawal flat fee of 0.0002 BTC (≈ 3-4 USD).
I was wondering how they determine this amount because network fee is not fixed.

For example if tomorrow the network has lot of activities maybe the average of fee will be something like ≈30 USD so transaction with 0.0002 could take days to be completed.
So if this scenario is during for weeks they will update they fee manually ? Maybe they have a periodic review (each quarter ?) of flat fee ?

Thanks for you answers !

Bonjour a tous,

Je suis nouveau sur ce forum et dans le monde du Bitcoin, c'est pourquoi aujourd'hui je me permets de me joindre a vous

Pour contextualiser un peu, je suis développeur et j'adore lire et comprendre comment le bitcoin fonctionne du point de vue technique.
Pour cela, j'ai installé le software bitcoin sur une machine virtuelle.

J'ai créé quelques transactions sur le réseau de test et pour le moment ca a l'air de fonctionner sauf que c'est la que les problèmes commencent 
Je suis ne suis pas réellement convaincu que ce que j'ai fais est correct, il reste pas mal de zones d'ombres et j'ai du mal a trouver certains informations.

C'est pourquoi je fais appel a vos connaissances
J'aimerai savoir si quelqu'un pourrait m'apporter une vue un peu globale de comment les méthodes fonctionnent entres elles.

Par exemple, quelles méthodes sont appelées pour :
         - créer une transaction
         - spécifier le montant des frais a appliquer sur une transaction
         - récupérer les transaction avec leurs statut pour une adresse spécifique
   
J'ai aussi trouvé le champs "vout" lorsque j'appelle la méthode "listunspent" mais je ne sais pas quoi correspond ce champs. Si quelqu'un a la réponse, je suis preneur

Merci a vous !

Hello everyone,

I'm new in this forum and also in the bitcoin world.
I'm really happy to join this community that's why i have some questions.

I'm developper and i love discovering how bitcoin works in the technical part.

To do that i have installed the bitcoin software in a virtual machine and became a node at the same time 

I have create some transactions on the testnet network and for the moment thats works nice BUT i'm sure that's what i did is really correct 

So i would like to know if someone have some workflow/schemas to share that's explain all the interactions with methods to for example :
         - create a transaction
         - specify fees on a transaction
         - retrieve transactions with status for a specific address
     
By the way i also saw the "vout" fields when i call "listunspent" method but i don't know what it is. If someone can explain this please 

Thanks you very much !
Have a nice day !