Questions tagged [transactions]

This tag should be used for questions related to transactions. Transactions are signed messages regarding the transfer or generation of bitcoins. They are broadcast throughout the Bitcoin network and, if accepted, integrated in the blockchain.

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4
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1answer
623 views

Why do my transactions show I received 1 satoshi?

My Multi-Bit client shows 1 satoshi sent to me in my receiving transactions, with 1 confirmation only. The receiving address is quite old too. Why is that showing up when I didn't send myself anything ...
4
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2answers
238 views

Is there a reason big Bitcoin companies wouldn't use only SegWit transactions?

As I understand, SegWit allows anyone to create a SegWit address where they can send their bitcoins and transact from that wallet just as easily as they would with a traditional address. The SegWit ...
4
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1answer
4k views

How do I find the txid and vout values for an input I want to spend?

I was in the http://coinb.in/multisig/#newTransaction and wanted to make a input but it needed 2 values. Txid, How do I get that? TxIn/vout, Whats that and how do I get that?
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2answers
5k views

Do we have to pay transaction fee if we transfer bitcoins from one wallet to another ?

Can this be done for free? also please mention wallets who do not charge transaction fee (if they exists)
3
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3answers
1k views

Stuck duplicate transaction in BitcoinQT

I received two payments with the following transaction: https://blockchain.info/tx/12e487de6fd8d920446cd8663dc11977d185ceaa25b7c6f36921fb76e58875f0 On this transaction ...
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2answers
1k views

Is that safe to expose public key to the mainnet

Because every time when someone want to spend some money under an address, he need to provide public key and sent the content to the mainnet. (Please correct me if that is not correct) Where can I ...
1
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2answers
74 views

Adding Comment on Bitcoin Transaction (After Sent)

Is it possible to add a comment to a bitcoin transaction after it has been sent?
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2answers
971 views

Charge backs on bitcoins

The bitcoin page here (https://bitcoin.org/en/you-need-to-know) says that bitcoins don’t allow chargebacks. In the current system, credit cards provide a system of checks and balances and provide ...
1
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3answers
4k views

Bitcoin Cash Multibit HD/Electrum

If I had my BTC in a multibit HD wallet prior to the fork, and I exported my wallet to Electrum after the fork, will the BCH still be tied to the multibit HD wallet? And if so, how can I access the ...
1
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1answer
463 views

How to create a p2sh transaction with a scriptsig of OP_true?

How can I create a p2sh transaction with a scriptsig containing OP_TRUE only, removing the need for a digital signature, which will be broadcasted and mined? Also could some one provide an example of ...
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1answer
2k views

Walking through a transaction script - blockchain.info

As an example, I would like to consider this transaction: https://blockchain.info/tx/6f7cf9580f1c2dfb3c4d5d043cdbb128c640e3f20161245aa7372e9666168516 I have three questions: 1) The first two entries ...
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0answers
47 views

Missing btc after -zapwallettxes and blockchain rescan

I sent a transaction in Bitcoin Core and realized that the fee was too low. I waited a few days to see if it would confirm and then wanted to try something else. I read that starting bitcoin core with ...
0
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3answers
842 views

BTC missing after strange negative transaction

four years ago I've bought 1 BTC, made wallet.dat file and stored in the cloud. Now I wanted to check balance and after syncing on Bitcoin Core found negative transaction with no address. I did not ...
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2answers
212 views

What does this output item in the result of the call with blocktrail api mean?

This is the result of a call with blocktrail api. It is about a transaction with the hash 6b1c57d98a557b5f578c02f6c386ef049df5890ebddd01d286bf345f47c5cecc {"raw":"...
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1answer
248 views

I NEED YOUR HELP URGENTLY Bitcoins

I really need your help on this. It has stated in my wallet that i've received my bitcoins of 1.182691BTC on 29/05/18. This's my wallet address: muFjdWSy2DKStSP2gUH2aHZq6kRBva8ZDV it stated on the ...
-1
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1answer
397 views

How to assign destination tags to users for ripple address.

I am integrating ripple for my trading website and what I know is that the ripple address is common to all the users but we need to provide destination tags to identify the user. So my question is how ...
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1answer
8k views

Transaction not found [duplicate]

I sent some bitcoins to an address. The transaction seems to have been executed, and I do have a transaction hash; but when I search for it on http://blockchain.info/ it says "transaction not found"......
41
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1answer
11k views

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 ...
21
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4answers
24k views

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 ...
13
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2answers
2k views

Transaction Malleability in the blockchain

How does a transaction malleability look like in the blockchain? Are there any examples?
9
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1answer
3k views

How would I hand code a Bitcoin transaction

Form the Bitcoin Wiki - Transactions I see a transaction has the following format. Input: Previous tx: f5d8ee39a430901c91a5917b9f2dc19d6d1a0e9cea205b009ca73dd04470b9a6 Index: 0 scriptSig: ...
11
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1answer
3k views

What strategies can an e-wallet use in order to reduce transaction fees?

I noticed that most Bitcoin exchanges (MtGox, TradeHill, ExchangeBitcoins, etc.) do not charge any fees for withdrawing bitcoins. What kind of strategies can they use in order to reduce these costs?
10
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1answer
1k views

Turing completeness of Bitcoin Script

For me, scripts are one of the most interesting features of Bitcoin. They provide possibilities which have no equivalent in classical currencies. However, the wiki states It is purposefully not ...
8
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1answer
5k views

Is it possible to view unconfirmed transactions with the bitcoin client?

This site shows you unconfirmed bitcoin transactions: https://blockchain.info/unconfirmed-transactions As I understand it, these unconfirmed transactions are received and rebroadcast by every bitcoin ...
8
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2answers
3k views

Settling offline transactions

Use Case My use case is around a scenario where both customer and merchant possess offline wallets with a balance that has had confirmation on the blockchain. To begin with, let us say that, the ...
17
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3answers
3k views

Is there a way to undo transactions with a “too low” fee?

Suppose we reach a state where only transactions that pay a fee are accepted by miners. Further supposed that someone created a transaction using an old/odd client that allowed them not to send any ...
17
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9answers
1k views

Is there any way the Bitcoin network could resist a viral tainted-coin tagging system implemented by regulators?

Already it's possible for MtGox etc. to detect spends of coins that have certain well-known thefts in their history. If regulators forced audits on exchanges and key popular merchants, as well as ...
12
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2answers
2k views

What is the point of SIGHASH_NONE?

If I understand correctly, SIGHASH_NONE in the output input signature means that spender of this output doesn't sign his outputs. But doesn't that mean that the spending transaction is by design ...
9
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1answer
2k views

Push notification of incoming transaction

Is there a way to be notified by bitcoind via the CLI that some incoming transaction has been confirmed?
7
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1answer
5k views

How to sign bitcoin transaction with 'bitcoind' and non-bitcoind-wallet private key?

I want to create and sign bitcoin transaction using only 'bitcoind' and 'bitcoin-cli'. I can create a transaction using createrawtransaction RPC API, but signing it using 'signrawtransaction' fails. ...
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2answers
7k views

How is a Transaction Output Marked as Spent?

The Bitcoin developer guide states that each output of a particular transaction can only be used as an input once in the block chain. Any subsequent reference is a forbidden double spend—an ...
12
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1answer
1k views

How do Bitcoin clients determine the number of confirmations a transaction has?

The protocol specification doesn't seem to address this.
10
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1answer
3k views

With 100% segwit transactions, what would be the max number of transaction confirmation possible on a block?

With 100% segwit transactions, what would be the max number of transaction confirmation possible on a block? And, how many utxo can be updated by a block full of segwit transactions?
3
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1answer
1k views

Verifying Bitcoin ownership

Suppose Alice has 30 bitcoins from David. Now Alice wants to transfer amount 20 bitcoins to Bob. Now, Alice creates a transaction with Bob's bitcoin address. To prove authenticity and integrity, ...
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1answer
1k views

How to store arbitrary data in the bitcoin blockchain and how can I differentiate between a transaction an those data?

According to this post, I can store arbitrary data in the blockchain (as the news about "child pornography in the blockchain" tell). Now I want to store "Hello World" in the blockchain. Is there a ...
25
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3answers
18k views

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?
14
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2answers
1k views

Does any pool accept higher-fee transactions of a double spend, instead of the earlier one?

Some pools use a modified bitcoind that uses different rules for choosing the transactions to include in a block. Are there any pools that knowing one transaction to be included in a block would ...
13
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4answers
1k views

Is pruning transaction history implemented in Satoshi's bitcoin client?

The original bitcoin paper suggests a method to discard old transactions. One should compute the Merkle Tree of the entire transaction history, and store only part of the tree. However, I didn't ...
12
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2answers
3k views

Why do small transactions without fees ever get processed?

I understand that adding a small transaction fee as incentive ensures block generators will include your transaction. When you have no transaction fee, what is their motivation then? Why do some ...
12
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2answers
1k views

How can I choose the address bitcoins are sent from?

So let's say I have multiple bitcoin addresses (some of them already received bitcoins), created a new bitcoin address, received bitcoins on it and would like to use the very same address to send them ...
12
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2answers
2k views

Who mined the infamous block 364422?

Block 364422 contains a transaction that takes a long time to verify. This transaction design demonstrates a way a denial of service attack could be executed. This prompted Gavin Andresen to propose ...
11
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9answers
7k views

Where can I get email notifications on any transactions to/from an address I do not control?

There was at least one site that did this I remember.
10
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2answers
462 views

Decentralized transactions between two decentralized currencies

Currently, bitcoins and namecoins are implemented using the Bitcoin protocol. And there might be several reason for new block chains to appear, but this is not the subject here. As far as I know, ...
9
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3answers
2k views

Can an unconfirmed transaction that only Blockchain.info shows be manually re-broadcast?

Blockchain.info shows a transaction that was created by Blockchain.info/wallet but for whatever reason the transaction didn't confirm right away and appears to not be getting re-broadcast (perhaps ...
9
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1answer
507 views

When a transaction is broadcast to the network, what is actually being sent?

When a transaction is broadcasted to the network, what is being sent? Is it a hash? if yes, is it going to be the hash of: previous transaction + public key of the receiver?
8
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2answers
4k views

What are the categories of a transaction, and what do they mean?

I've only seen "receive", "send", and "immature". Are there other categories that I'm missing? And what do they mean? It seems that "receive" means a transaction that gave our account coins, and "send"...
7
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2answers
2k views

How to sign a transaction hash in ruby?

I'm trying to sign (using secp256k1) a transaction as explained here. I'm using my own private key and an unsigned transaction as the input. I'm able to sign it using the JSON-RPC client, but when I ...
7
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1answer
3k views

Bitcoin script example

Is there some good example on how to process a basic tx's scriptsig and get the recipient's address from the raw transaction?
5
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2answers
421 views

Sending and Receiving Mechanics

I'm new to Bitcoin and am considering allowing people to pay for my software with them. Before I continue I would like to clarify some things. My googling did not get me the answers I was after. I ...
4
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1answer
566 views

Does it make sense to “collect” smaller transactions balances into a single account during low activity?

My understanding is that it's possible for extra bitcoins to be left in several accounts within my wallet. The scattering of these coins into different accounts may cause future transactions to ...