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19 votes
Accepted

Why is coinbase mentioned in a BIP?

The coinbase mentioned in BIP34 is not the company; it is referring to the first transaction in a Bitcoin block (which is special as it is allowed to bring new currency into circulation). Coinbase-the-...
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8 votes

Import private key to coinbase?

Coinbase no longer supports any sort of wallet import (wonder why?). To quote Coinbase (June 2016 on https://support.coinbase.com/customer/en/portal/articles/2285419-how-do-i-import-an-existing-wallet-...
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8 votes
Accepted

What percentage of merchant Bitcoin receipts are immediately converted into fiat?

The last stats Bitpay published were in December, 2014, so it may be somewhat out of date. They said that 10% of the merchants keep settle entirely in Bitcoin, 41% of the merchants keep a part of ...
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7 votes

Do payment processors who convert bitcoin to dollars (like Coinbase and Bitpay) devalue bitcoin?

For every Bitcoin they sell, someone else had to obtain that Bitcoin. So they increase the demand for Bitcoins by at least as much as they increase the supply. In addition, they increase the utility ...
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7 votes

Limit order versus Market order

In a limit order, you specify how much of the asset (in this case BTC) you want to buy or sell, and the price you want. If there are matching orders on the book (e.g. someone who wants to sell at the ...
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7 votes
Accepted

Can I claim my BCH if my BTC is held with Coinbase?

If you didn't move out your BTC before the fork, then your BitCoin Cash tokens remain with CoinBase. They are not really lost, but they might remain in their system for a while. Here is the ...
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  • 86
6 votes

Does Coinbase have the ability to create a "Business" Account?

I'm with Coinbase (proof), better late than never with this answer. We do have a way of doing this now, though it requires some extra verification steps to properly link your account to the business ...
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  • 406
6 votes

How to transfer bitcoin bought online to my desktop wallet?

You can easily send your bitcoins from Coinbase to Electrum. Once logged into Coinbase click on the Send / Request button on your left hand menu. A form will pop up asking for an email address or ...
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  • 5,176
6 votes

Can I receive Bitcoin on any of my wallet addresses?

Yes! With an HD (Hierarchical Deterministic) wallet you control all the addresses inside of it. Using a new address for each transaction is actually a good thing for privacy. https://en.bitcoin.it/...
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6 votes
Accepted

Does coinbase pay for my transfer fees?

At the time of the question being posted, Coinbase was paying your transfer fees. Starting on March 21st 2017, they stopped paying the transfer fee and the user now pays the fee. Coinbase has blog ...
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  • 76
6 votes
Accepted

How is 10% transaction fee possible for a bitcoin transfer from coinbase to another exchange?

This is normal. You can see on https://bitcoinfees.earn.com/ that BTC 0.001 is a pretty average fee right now. You should not think of it as a percentage, since the fee for a transaction is not ...
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6 votes

Longest unconfirmed transaction?

A transaction could go unconfirmed indefinitely. The order in which transactions are confirmed is decided by miners, and generally they will be incentivized to include only the highest fee-rate ...
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  • 17.2k
5 votes

Transfer between Coinbase and Armory?

Yes, you can and should transfer your bitcoin to a wallet you control after purchasing them from a web-based wallet. Never leave a substantial amount of your bitcoin on an exchange or a web wallet. ...
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  • 8,724
5 votes

How does one create a brain wallet from a seed using SHA256?

A bitcoin generator can generate an address. i.e. https://brainwalletx.github.io/
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5 votes
Accepted

How to derive the private key associated with a Coinbase multi-sig vault address

I did some digging into Coinbase's offline multisig tool to figure out what the user seed actually was and their derivation paths. It turns out the user seed is just that, a seed that is used to get ...
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  • 60.6k
5 votes

How do I retrieve bitcoins sent to my email address through coinbase.com?

When sending Bitcoin from Coinbase.com to an email address, you are sending the Bitcoin to another Coinbase.com account linked to that email address. So for example, if you had a friend who has a ...
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4 votes

Database error when installing Coinbase's Toshi with Docker

I think i had the same problem when running locally. Forgot to do the initial DB migration. bundle exec rake db:migrate after this, it worked for me
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  • 113
4 votes

How to file bitcoin income to the IRS

The IRS just issued a preliminary ruling on this and it will be treated as property. The Q&A portion is particularly useful. SECTION 4. FREQUENTLY ASKED QUESTIONS Q-1: How is virtual currency ...
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4 votes

Bitcoin address does not show transaction/balance from Coinbase purchase

I'm no expert but I'm a user of coinbase and noticed there's a mistake in ScripterRon's answer. The first transaction moves the coins from an address controlled by Coinbase to a new address ...
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  • 151
4 votes

How to Connect bitcoind to one of your workers in a pool?

Assessment I think you are slightly misunderstanding some things, but basically you are already on the right path. Wallet I signed up for a bitcoin wallet (coinbase) where I am given an id....
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  • 204
4 votes

Coinbase to Block Chain Transfer Delay

Since there is no dispute about the address, you can check whether the transaction has confirmed on any of the blockchain explorers freely available, such as blockexplorer.com or the aforementioned ...
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  • 62.5k
4 votes

How does one create a brain wallet from a seed using SHA256?

A brain wallet is simply the SHA256 hash of an arbitrary string, this is a Bitcoin private key in hexadecimal format. The 64 character hex string is then encoded to a Base58 Private Key, more commonly ...
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  • 5,176
3 votes

Can I do blind refunds relatively reliably?

Do not use the raw protocol to issue refunds to addresses without first confirming with the sender that this is acceptable. Most services generate unique addresses for each transaction. Unless your ...
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  • 179
3 votes
Accepted

What changed about coinbase.com to make it a "regulated exchange"?

As the Reddit post linked in your answer points out, the Coinbase that we already knew uses ACH transactions to move money in and out of your account, which makes it not very good for day trading. ...
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3 votes

How to transfer bitcoin bought online to my desktop wallet?

I did this today and the procedure is currently (2017-10-31) as follows (Electrum 2.9.3): Prepare Electrum to receive * Make sure Electrum is online (green icon bottom right) * Click 'Receive' and ...
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3 votes

Coinbase wallet address listed as spent without spending

You don't have a Coinbase wallet address, you have a Coinbase deposit address that's used to deposit bitcoins into your wallet. Coinbase sweeps funds from deposit addresses into their secure holding ...
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3 votes
Accepted

Is it safe to authorize Coinbase to withdraw cash directly from my bank account?

They don't need your password to process the ACH in the future. this sounds like they used your banking credentials to verify that it really is your account. You should be able to change your ...
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  • 250
3 votes
Accepted

What exactly does the "fraud management system" of blockchain checks?

Bitcoin is focused on assuring that the payment is legit. It doesn't help at all with the payer. Waiting for confirmations gives you very strong assurance that the payment is genuine and final, and ...
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3 votes

Coinbase to Block Chain Transfer Delay

If it is showing up on Coinbase but not on blockchain, there's only two possibilities. You sent to the wrong address. Check the address you sent to in blockchain.info. It should show up with your $...
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3 votes

Online exchange bitcoin balance to hardware wallet

Generate an address on the hardware wallet. Then log in to your web wallet account and send all your coins to that address. That's all.
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Only top scored, non community-wiki answers of a minimum length are eligible