Questions tagged [transactions]
Transactions are signed messages carrying out the transfer or generation of bitcoins. They are broadcast throughout the Bitcoin network and, if accepted, integrated in the blockchain.
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How to redeem a basic Tx?
Given a raw, standard Tx (wiki):
01000000
01
26c07ece0bce7cda0ccd14d99e205f118cde27e83dd75da7b141fe487b5528fb
00000000
8b
...
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How can I accept bitcoins on my website?
I have an online store and would like to begin accepting bitcoins. How can I go about doing this?
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How anonymous are Bitcoin transactions?
I read some sources that say Bitcoin transactions are anonymous, some that say they are semi-anonymous, and some that say they are not anonymous at all. In what ways are the transactions anonymous ...
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What is meant by Bitcoin dust?
I've seen the term "dust" used to describe small transactions that might be considered as spam by the Bitcoin network. Is there is a generally accepted definition of this term?
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Explanation of what an OP_RETURN transaction looks like
How is OP_RETURN used and why was it introduced in the first place?
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What is the Merkle root?
The Bitcoin wiki Vocabulary article explains why the Merkle root exists:
Every transaction has a hash associated with it. In a block, all of
the transaction hashes in the block are themselves ...
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What is relation between scriptSig and scriptPubKey?
Scenario: A is sending 1 BTC to B.
scriptSig appears in the Input Script.
scriptSig = <sig> <pubKey>
Here, public key is the Public Key of the sender, A. (this is the public key ...
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What are bitcoin "confirmations"?
When I receive bitcoins I see a certain number of "confirmations" in the client. What do these mean? Why do most sites make me wait for 6 "confirmations" before a purchase will go through?
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How does change work in a bitcoin transaction?
It seems that when you send a bitcoin transaction, all the coins in the sending address are spent in that transaction, divided into the amount that you intended to send, and "change", which goes back ...
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Is there any way to track an individual bitcoin (or satoshi)?
For example, if I wanted to "collect" important bitcoins is there any way to track a coin rather than a series of transactions? If I wanted one of the bitcoins from the infamous "Bitcoin pizza" ...
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What are multi-signature transactions?
What are multi-signature transactions, and why might they be used?
Also see:
How does one make multisignature transactions with the bitcoin client?
How can I create a multi signature 2-of-3 ...
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How do I see the IP address of a bitcoin transaction?
How do I see the IP address that someone used to send or receive bitcoins with? Is it stored in the blockchain?
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Why does Bitcoin send the "change" to a different address?
For example I have an address (A) with 20 BTC and send 9 BTC to address (B). Bitcoin will create a "change" portion of the transaction where the remaining 11 BTC goes to address (C).
Why not send ...
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What is the coin selection algorithm?
When creating a transaction in the standard client, what is the algorithm used to determine which unspent outputs will be used as inputs?
Has this changed since the first version? What different ...
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How is Bitcoin supposed to serve as currency when it is all but impossible to spend at the moment (12/2017)? [closed]
It seems Bitcoin is not standing up to the test of use as currency (that is to say heavy use). I tried to pay someone 0.009BTC (about $150) for some goods which I need in a fairly timely manner. As if ...
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What happens if I mistype the address when making a payment?
I sent bitcoins to an address, but I think I made a typo when I copied it. Where did these bitcoins go. Can I get them back?
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How are transaction hashes calculated?
I'm trying to calculate the hash of transactions in bitcoin blocks, but I'm not getting the right answers.
For example, the genesis block has a single transaction.
Here's how I'm attempting to ...
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What is a Finney attack?
What is a Finney attack? Extra points for explaining its purpose, the prerequisites for it to be possible, how the attack can be performed and the origin of the name "Finney attack".
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Who gets Bitcoin transaction fees?
Whenever I send bitcoins from one wallet or one exchange to the next there is always a fee. This makes sense with the exchange sites, they are just collecting the fee so they can make a living. What ...
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Do unconfirmed transactions expire?
Do they just sit there unconfirmed (e.g. when you be evil and don't pay a tx fee) forever? Or do they get deleted after a few days?
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How do I accept bitcoin payments at a real world store?
From what I understand, there are some requirements for using bitcoins at a physical store:
Both the store owner and the client must have Internet access
The client must have a cellphone or a laptop ...
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What is TxIn's sequence?
I'm currently trying to generate the genesis block with my code and I've stumbled upon the TxIn sequence field that is not explained in the Protocol Specification wiki page, nor does it seem to appear ...
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How is it possible to launder bitcoins?
Some services, such as bitcoinlaundry.com, claim that they can launder your bitcoins.
Since all bitcoin transactions are publicly logged, how is this done? Wouldn't it be possible to trace back the ...
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How are transactions broadcast to the rest of the network?
If a person sends a transaction to another person, and Bitcoin is a peer-to-peer application, how will the transaction get to the rest of the Bitcoin community? How does everyone have the same ...
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Redeeming a raw transaction step by step example required
I am looking, specifically, for a step by step example transaction of sending Bitcoin which uses an actual transaction (How To Redeem A Basic Txn, from a few years back, does a great job of outlining ...
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In getrawtransaction, what is the vout integer in the vin list?
I'm working on trawling the bitcoin transactions coming in via getrawtransaction.
I haven't been able to find the neccessary documentation to describe the vout integer in the vin array:
{"txid"=>"...
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What would happen if a portion of the Bitcoin network was separated from the rest of the network?
Yesterday I asked a question over at SuperUser, so that I could have my facts straight before asking this question. The scenario sets the basis for this question.
Regarding bitcoin, what would ...
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What's the minimum transaction with bitcoin?
What's the minimum transaction with bitcoin - local wallet to local wallet. Can I send for example $20 in bitcoins to another person?
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Why are there two transaction outputs when sending to one address?
I did a small transaction some days ago:
https://www.blockchain.com/btc/tx/4c07a07dfd9d5b79d168ec6835df876c64e82350a8f9211bf586d858a5aeb9ba
Some info:
1JFWE8THcAQQRYx99c43DXSGyoPL9Zs62D is my ...
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Has there ever been a successful double spend attack on the Bitcoin network? If not, is it really necessary to wait for confirmations?
There is a lot of concern about waiting for confirmations to avoid a double spend attack, but has there ever actually been a double spend attack?
It seems to be that there are two types of double ...
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Is there some way to merge two wallets or to import/export addresses?
I've got one wallet.dat from my laptop and another on my desktop, each containing various (different) receiving addresses that I use pretty often. I'd like to merge them into a single wallet.dat so I ...
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How many Bitcoin addresses are/have been carrying a balance?
Bitcoin addresses can be generated at will, and the theoretical limit to their number is high. Addresses are constantly being generated to receive funds or balance transactions, but they are also ...
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What is a double spend?
What is a double spend?
As someone who uses Bitcoin, what do I need to know about how the Bitcoin system prevents double spends? Are there still circumstances where they can occur?
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how to monitor +20,000 addresses for new received transactions?
I have around 20000 generated addresses which I want to monitor for new transactions. More addresses should probably come. Customers should use every address only once but I would like to monitor ...
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Is it possible to send bitcoins without paying a fee?
I am using the 0.4.0 release. Is it possible to send bitcoins without paying a fee?
Who gets the fee ? Is it only miners discovering new blocks?
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In order to reduce fees, can I 'consolidate' my wallet by sending the entire balance to a new address in the same wallet?
My balance is currently made up of lots of small amounts
I know I'm not going to be using my bitcoin wallet for a while, so I don't care if the consolidation transaction is slow.
Would creating this ...
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Useful alternative Bitcoin transaction scripts
The Bitcoin wiki describes a transaction's script as something that describes "how the next person wanting to spend the Bitcoins being transferred can gain access to them".
The script for "a typical ...
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What is Transaction Malleability?
The Bitcoin exchange MtGox has stated in this press release that "transaction malleability" caused them to stop sending bitcoins. A recent question asked if it really is an issue. But what is ...
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Get non-wallet transactions using bitcoin rpc (gettransaction)
I am playing around with Bitcoin-qt. I want to iterate all blocks and all their transactions.
So far I've been able to get a list of all tx's in the blocks I want to. Now I want to get information ...
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Can I send bitcoins with my mobile phone?
Is it possible to send and receive bitcoins with a mobile phone? If so, are there bitcoin clients for Android or iOS?
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What happens when someone sends bitcoin to my wallet?
I didn't get it. Should my wallet be online? What if it becomes corrupted before I make a backup? Can I use my backup wallet that was backed up few days ago?
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What are the pros and cons of Ripple's consensus as compared with Bitcoin's proof-of-work?
One of the major differences between Bitcoin and Ripple is how they process transactions. I can think of three ways in which Ripple's "consensus" scheme is superior to Bitcoin's proof-of-work:
Less ...
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Why does my wallet need to download the whole transaction history?
I started a wallet, and it is downloading and synchronizing lots of transactions.
This takes time and network bandwidth.
Why is this necessary? Is this some form of accountability?
With Paypal, ...
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What percentage of Bitcoin transactions never complete?
Occasionally transactions will be broadcast to the network that will show in a 0/unconfirmed status in the Bitcoin client. It is also the case that from time to time for various reasons those ...
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How can I create a multi signature 2-of-3 transaction?
Can somebody help me with step-by-step list of how to create a multi signature 2-of-3 transaction?
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What is the maximum size of a transaction?
I see from the source code (script.cpp) that there is an upper limit in the script size. It there any other limit to avoid a single transaction preventing other transactions of smaller sizes to get ...
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How do I send Bitcoin in paper wallet to other person?
I'm new to bitcoin.
Can you tell me step by step how do I send Bitcoin in paper wallet to other person.
Thank you!
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Are Bitcoin transactions permitted to have no outputs (i.e. all inputs become transaction fee)?
I am interested in the possible use of the Bitcoin (or other altcoin) blockchain as a generalized distributed ledger, meaning that it is useful for tracking information other than coin transactions ...
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What does the Bitcoin client do when it receives conflicting transactions?
I've been assuming that the second transaction will simply be discarded as invalid, while the first waits at 0/unconfirmed until it actually gets into a block (requiring a "-rescan" or similar if the ...
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Have any SPV users lost money because they accepted forged bitcoins?
I'm making a list of real-life examples of occasions where bitcoins were lost to various known attacks. One of these known attacks is that lightweight (SPV) wallets can't verify whether a transaction ...
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