Questions tagged [confirmations]

Confirmations correspond to the number of blocks that are dependent on a given transaction. This includes the block containing that transaction and all blocks after it in the blockchain. The more confirmations a transaction has, the more likely is it that it will remain in the blockchain permanently.

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Transaction remains not confirmed

On Multibit, one of my transaction to Bitstamp is not confirmed since 5 days (Status icon displays a white square). Apparently the 0.0001 fee was paid. I don’t know where is the money neither what to ...
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Bitcoin client confirmation configuration

How do I setup Bitcoin client (bitcoin-qt, bitcoind) to wait only for 1 confirmation? Is this setting hard coded into the client? This setting would be useful for merchant to accept payments as soon ...
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Transaction verification

I run a 0-confirmation tool. To track new transactions I use: bitcoind getrawmempool new transactions in new block not available in mempool (it seems I do not receive all transactions in mempool ...
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What precautions to take when working with only one or two confirmations?

I am providing a service that accepts Bitcoin. In order to speed things up a bit, I am planning to reduce the number of confirmations I require before I consider the money to have arrived. I have ...
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How does a wallet use unconfirmed outputs as inputs after unconfirmed transactions?

I have 10 btc on address A. Using raw transaction, I send 5btc from A to B and set the change address as A itself. Now because the transaction from A to B is not confirmed I can't spend the remaining ...
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Get the number of confirmations for an external address

I'm building an application that tracks transactions between two points for multiple currencies, currently: BTC, BQC, BTB, FTC, LTC, NMC, NVC, PPC, TRC, WDC & YAC. I need a way to check the ...
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Why does blockchain.info report “Estimated Confirmation time” not as 10 minutes?

Currently, it is a timer which counts down from 10 minutes starting when the transaction is first seen. When the timer reaches 0 minutes, it switches to "Unknown / Never." It is my understanding ...
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how long do i have to keep Bitcoin-Qt open after sending coins

Can I close Bitcoin-QT client and power off my computer just after sending coins to someone or do I need to wait until 1, 2...6 confirmations?
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Is four confirmations enough if the network hash rate is so high?

The point of waiting for six confirmations is that it becomes near impossible to create six blocks vs the network. So double spends a effectively eliminated. With the hash rate of the network so high,...
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Bitcoin Client says transaction is unconfirmed for 2 days now [duplicate]

Possible Duplicate: How to debug a long “0/unconfirmed” status in the bitcoin client? I made a transaction two days ago, but blockexplorer.com doesn't show the recipient address. Also ...
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What are recourse or non-recourse transactions?

This may not be a Bitcoin-specific question, but I still think it's better to ask it here. I've seen discussions about accepting unconfirmed transactions, that it should not be done because of double-...
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Is there any discrepency on Confirmations?

Is there ever a situation where some bitcoin client thinks a transaction has 3 confirmations and another bitcoin client (or website) thinks a transaction has 4 confirmations, for example?
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Help regarding an online wallet to local wallet transaction? [duplicate]

Possible Duplicate: Why is my client software not receiving bitcoins? I use an online wallet most of the time but that was recently hacked. How I have yet to determine. Anyways, I have since ...
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Suddenly no new confirmations on bitcoind

I'm using version 40000 of bitcoind and yesterday it stopped receiving new confirmations. Here is the getinfo for it. "version" : 40000, "balance" : x, "blocks" : 225454, "connections" : 8, "...
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How many confirmations do I need to ensure a transaction is successful? [duplicate]

As a regular user of Bitcoin, I often send bitcoins to other, or receive BTC from others, sometimes this might be a trade or deposit. Some traders require at least 6 confirmation, some require at ...
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What's the longest chain of orphan blocks? (How many confirmations have been necessary?)

I believe my two title questions are the same (are they?): Heretofore, what is the longest chain of orphan blocks (of N blocks), such that if someone didn't wait for N+1 confirmations, they may have ...
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How can i effectively split large outputs into smaller ones?

I have a wallet that pays lots of small amounts in the range of 0.x to 5 BTC. I filled the wallet with one transaction of 50 BTC, so there is only one large input contained. Now when i transfer 0.5 ...
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In ListReceivedByAddress, what is the meaning of Confirmations if the address is reused?

The API ListReceivedByAddress allows me to view a list a sum* of all the transactions that an address has received. This returns an array listing the sum of what was sent. If the address is reused ...
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Will transaction confirmation time be reduced as the network size increases?

Right now it takes 6 confirmations, which takes about an hour to verify a transaction. Will the rate at which transactions confirm become faster over time?
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Is the current number of confirmations visible somewhere in the raw block?

Is the current number of confirmations visible somewhere in the raw block output created by blockexplorer or blockhain.info? Is this information available in the raw stream or is the number of ...
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Can I spend a coin sent to myself before it confirms?

If I spend the entire balance in my wallet to another address in my own wallet, do I need to wait until it gets one confirmation in order to spend it, or does the client know it is my own funds and ...
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Why I haven't received my transfer from BTCGuild? [duplicate]

Possible Duplicate: How long does it take to receive bitcoins? At BTCGuild site it shows on Payout History: 2012-01-26 19:01:06 1BiNp9GmFJv1VuoudsJy8Ke79qvh6BPDzp 0.20000000 2012-01-22 07:29:27 ...
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Why do some transactions take months to get into a block?

This page at bitcoincharts shows a list of transactions that didn't get included in a block yet. Many of them are from 2 or 3 months ago, even though they include a fee. What's going on? Why haven'...
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Why does the Bitcoin client require at least one confirmation before I can spend?

If I accept bitcoin for payment, provide a new address for each payment and make it clear to payers that I consider payment complete only after waiting the ~10 minutes for a confirmation, is there a ...
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How has the problem of waiting for confirmations been eradicated?

On the bitcointalk forum, evoorhees wrote: For a long time people said the "waiting for six confirmations" was a significant drawback, but most people understand that problem has been almost ...
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Is it possible to recognize conflicting 0-confirmation transactions with the Bitcoin client or other available software?

Is there already a way to detect conflicting 0-confirmation transactions? I'm assuming at least one transaction goes to my wallet. I would expect the client to list the transaction as conflicting but ...
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Can one send bitcoind transactions that will only be valid after a certain amount of time?

The standard client only allows one to spend coins from a transaction after getting 6 confirmations (120 in case of mining rewards). Can one send bitcoind a JSON-RPC command telling it to send those ...
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How do Bitcoin clients determine the number of confirmations a transaction has?

The protocol specification doesn't seem to address this.

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