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Do wallet companies send user's transactions to their own "central" bitcoin nodes?

Depending on trusted third parties is not good practice. It contradicts the objectives of the original developer of Bitcoin. Most normal wallets can construct transactions and transmit them to a few ...
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1 vote

How can I create/provide crypto currency wallets to my users?

Satoshi Nakamoto invented Bitcoin in order to avoid any need for trusted third parties. Cryptocurrency exchanges like Coinbase or Binance are examples of trusted third parties. From the above, I would ...
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2 votes

How do crypto exchanges create wallet for their customers?

but in this case the wallet's password( I think it's called private key) Passwords and private keys are two very different things. In the case of interacting with an online exchange service, your ...
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  • 17.2k
-2 votes

Static Wallet Address

Not having a fixed address is idiotic, has absolutely no upsides except to people who want to be deceptive. There is no relevance whatsoever to a floating not static address other than to make crypto ...
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-2 votes

What needs to be on a USB such that you could hand it to someone and gift them a discrete amount

How to use TailsOS on a USB stick, with Electrum and KeePass (also have built in password generator). This storing method is for those users that are comfortable with using computers, systems and ...
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2 votes
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Remove descriptor from a Bitcoin Core wallet

Bitcoin Core does not have any descriptor or key deletion functions because users may use them to accidentally delete the data that they need in order to spend their Bitcoin. The recommended way is to ...
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  • 60.4k
1 vote

Bitcoin tx with electrum has been unconfirmed for more than 24 hours and cannot be found on blockchain

You seem to have set a fee of 0.00000686 BTC (around 27 US cents) or 3 satoshi/vByte. The average fee is currently about five times higher than your fee and you have three outputs. So the size in ...
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1 vote

What is the difference between a 'hot' and 'cold' wallet

My answer will never be better that the provided before but I would add that the term wallet has been very unfortunate because a wallet, cold or hot, is not actually containing any coins like ...
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2 votes

What is the difference between a 'hot' and 'cold' wallet

TL;DR: hot / cold wallets refers to whether or not the private keys are on Internet-connected systems or not. I think this is closest to your misconception: A wallet address is a public key. While a ...
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1 vote

Create individual wallet for each user

It is not. It will be safer, easier, and reliable, to use a library designed for address creation. https://www.binance.com/en/support/faq/360020632811 What is a Sub-Account? Sub-account allows you to ...
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0 votes

What needs to be on a USB such that you could hand it to someone and gift them a discrete amount

Opendimes are fantastic. But your question was about a generic flashdrive. That could contain the wallet data file for a specific client software. Or Seed Recovery data to use with any BIP39 ...
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Order of Signatures in Multisig-Scheme

In the context of OP_CHECKMULTISIG, the signatures must appear in the same order as the public keys are listed. The signers can created the signatures in a different order than that, but that cannot ...
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3 votes
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What needs to be on a USB such that you could hand it to someone and gift them a discrete amount

The device that Nic gives is called an opendime. It's not a normal USB stick. The device generates a private key and a public key. At first only the public key is accessible, at this point you can ...
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