Transactions are signed messages regarding the transfer or generation of bitcoins. They are broadcasted through the network and, if accepted, integrated in the blockchain.

learn more… | top users | synonyms (1)

-1
votes
0answers
28 views

How do I use Bitcoin?

I created a bitcoin address some time ago. I used a site that sends Bitcoin to my Bitcoin address. When I made my first withdrawal request, the amount went to blockchain.info/address/<my bitcoin ...
1
vote
1answer
34 views

Which part of code (function) handles received transactions?

I was trying to understand the flow of control between functions (operations performed and their order) when a transaction is received.
2
votes
1answer
65 views

Where is the bitcoin wedding transaction?

There has been some buzz in the news about a wedding that put a statement in the blockchain declaring their message. Here is one source that reported on the news. Can anyone provide a link to the ...
4
votes
2answers
101 views

What is the average size of a bitcoin transaction?

I'm curious, since the inception of bitcoin, what is the average size (in bytes) of a bitcoin transaction? To be clear, the easiest way to find this is not to take the size of the block-chain and ...
3
votes
3answers
208 views

bitcoin mssql decimal/money storage size

What's the decimal storage requirement in ms sql for bitcoin? GAAP standard quotes decimal (13, 4) for money. Is decimal (13,8) preferred for bitcoin or something else?
0
votes
1answer
22 views

Blockchain.info, How to receive new transactions (not websocket)

I'm trying to build safe transaction-confirmation app and need to synchronize new not-processed transactions. For example I monitor address A and have processed last transaction B, how can I ask ...
0
votes
0answers
26 views

How safe is sending out transactions using unconfirmed inputs for a service?

I've been running into problems with a high-traffic hot wallet, where a single transaction would lock up any input for a block with the spendzeroconfchange disabled. Would it be safe for a service ...
0
votes
1answer
50 views

Is there a simple way for me to borrow bitcoins? [on hold]

I'd like to try making money in prediction markets that use bitcoin, like http://fairlay.com and http://predictious.com. The problem is that even if I make a profit, I can still end up losing because ...
0
votes
0answers
20 views

How to index the UTXO set efficiently?

I haven't been able to find information on how to efficiently index UTXOs. Can you explain or point me to some resources? Update: Btw, I understand completely that the notion of address balance is ...
-2
votes
0answers
26 views

Lost Transaction

I have a transaction being sent to: 1FWFPJFd5ZbV5nQ44HCSbHpmXx16MzJUiE It started showing as unspent and unspendable and has now disappared. What went wrong. It was being sent to a multibit ...
0
votes
0answers
14 views

How Satoshi managed to mine so much bitcoins beign the first user of the system? [duplicate]

I'm just learning Bitcoin and if I understand it's conception properly, mining of bitcoins means validation of transactions by computing hash which should satisfy some preset condition. In other ...
1
vote
1answer
33 views

Understanding Bitcoin protocol (through practice)

OK, firstly, Ken Sheriff (the guy who mined Bitcoin using pencil and paper) has posted some fantastic Bitcoin articles on his blog. In "Using Bitcoins the Hard Way" he writes (emphasis added): It ...
0
votes
1answer
24 views

How to tell which account an unspent vout is in?

When I go to send coins, I want the transaction to ignore the unspent coins in a certain account. I think I can do this in wallet.cpp, but I'm not sure how. Maybe in the AvailableCoins() function? ...
3
votes
2answers
64 views

Accepting 0-confirmation transactions and detecting double-spends with open source solution

I would like to accept 0-confirmation bitcoin for very small amounts. I am happy to accept zero-confirmation spends and am aware of the risks. However, the tool needs the ability to "flag" the ...
0
votes
1answer
102 views

Why is the address 1MAdS7aPszWG4EYgBpbF9mnGUi5ChbMu8d sending me Bitcoins?

I'm receiving 1 satoshi today from an odd address. This account has been very consistent in creating spammy transactions that distribute 1 satoshi to a lot of account. Any one know what's going on ...
2
votes
2answers
51 views

How do Bitcoin transactions work, and what does one need in order to send or receive one?

I am trying to understand how Bitcoin works and whether it is possible to manage a bitcoin transaction anonymously. If someone transfers a bitcoin, what do I need to sign it with? Can it be signed ...
1
vote
1answer
35 views

How to set a payment in Ripple without specifying currency issuers?

I want to send IOUs from one of my accounts to another through the use of the API. Both of the accounts trust the same IOU issuer, which is a separate address. According to the Transaction Format, I ...
0
votes
2answers
21 views

What's the minimum transaction with nxt?

Currently the minimum transaction on Bitcoin is 5430 Satoshi, and what about NXT?
3
votes
2answers
208 views

Why do transactions with lower input age require higher fees?

I am trying to understand how bitcoin fees work. I have understood well why transaction with many inputs require higher fees but I can't figure out why transaction spending virgin bitcoins would ...
2
votes
3answers
60 views

Inevitable dust spam

Given I have an account with balance 1BTC + 1 satoshi. I want to transfer 1BTC to another account and tribute 0.0001 BTC out of that 1BTC to the network as fee. Would my transaction being rejected for ...
0
votes
1answer
30 views

Can zero-fee txs get into a block?

What happens if a transaction is set to have zero fees? Can it get into a block? Also, if you updated a coin's code to accept zero-fee transactions, would this cause a hardfork? (e.g. made tx's in ...
0
votes
1answer
57 views

Blockchain.info automatic transaction

On Sep 17 I wanted to transfer 0.001 BTC from one Blockchain.info account (bitcoin address 1BFFtYPgtaZUHujDqiehqSseZvuUzJQxki) to another Blockchain.info account (bitcoin address ...
0
votes
1answer
30 views

Getting all transactions that ever occurred for a bitcoin address

I know you can use various APIs to get the balance for a given bitcoin address, but is there a way to total all the bitcoin that were ever received at a given address? A so-called "transaction ...
2
votes
1answer
77 views

Can't connect Electrum to a Network so that I can receive my bitcoins

I've looked everywhere for an answer but can't find the right one for my situation. I'm using the linux based tails OS with persistent setup with my electrum wallet. Everything works fine and LBC ...
2
votes
2answers
89 views

Can an output be spent in the block in which it is contained?

Is a Bitcoin block containing both a transaction that funds an output, and another transaction that immediately spends the same output, allowed by the protocol? Does such behavior occur "in the ...
3
votes
1answer
93 views

How long does it take for a transaction with 0 fees to be confirmed or rejected?

I have a problem with a transaction that has 0 btc fees: https://blockchain.info/tx/256301465d77affb6bc7087432a9130db48dd64efa28b0460fb674eda704f382 From what I understand, eventually this ...
2
votes
2answers
47 views

theoretical: mining without transactions

As fas as I know, mining means verifying transactions and thus keeping the bitcoin network alive. Today at a local meetup, some people have informed me that mining doesn't need transactions. They said ...
1
vote
0answers
23 views

Are transactions containing zero-value output accepted by miners?

Would miners generally accept a transaction that has one of its output values set to zero? Can the acceptance in this case depend also on the scriptPubKey associated with the zeroed output?
2
votes
1answer
87 views

Bitcoin payout based on real-life event

Just starting to learn bitcoin scripting. Can someone explain how to pay out based on some real-life event? I currently test from the command line with bitcoind -regtest
1
vote
1answer
41 views

How does the receiver of a transaction check the whole chain of ownership?

While reading Satoshi Nakamoto's paper on how bitcoin works, I got stuck on #2. In a chain of transactions, how can someone who has received the coin check the whole chain with just a signed hash of ...
1
vote
0answers
19 views

How to detect a rejected transaction?

If the nodes I connect to don't support the BIP 61 reject message, how do I know that my transaction was eventually rejected by the network (e.g. due to my bugs)? Is there any timeout or whatever ...
1
vote
1answer
58 views

Get a JavaScript notification when Bitcoin transaction arrives to a certain address

I'd like to implement a very simple address monitoring feature on a site I'm working on. I'd like to just be able to say "Listen to this address on the testnet for money to come in", and update the ...
1
vote
2answers
26 views

Are time, timereceived and blocktime in UTC?

I read around about the differences between time, blocktime and timereceived, but one question remains. Although I assume all times are UTC, I haven't seen that mentioning specifically anywhere. Does ...
0
votes
1answer
33 views

How are transactions efficiently distributed to network nodes before inclusion within blocks?

How does the bitcoin core efficiently distribute transactions so that they are added to node transaction pools to be inserted into a future block? I understand that each bitcoin node has a list of ...
0
votes
2answers
61 views

if the cap is 21 million bitcoin does this mean that there will be only 21 million transaction ?

so as the tittle says , and if I got right , a bitcoin is given to the first miner who got the right hash , so with 21 million cap does this mean the limit of transactions is also 21 million ...
2
votes
2answers
72 views

How do I spend Bitcoins from a specific address?

What's happening when I use importprivkey? Are the coins merged to my existing private key or is the new key added to my wallet? I want to import a private key, receive funds on it, and send the same ...
1
vote
1answer
59 views

Tie Breaking in bitcoin transaction

If two nodes broadcast different versions of the next block simultaneously , some nodes may receive one or the other first. In that case, they work on the first one they received but save the other ...
1
vote
1answer
56 views

solo mining payout maturity vs pool mining

When I mine in pools there are unconfirmed coins, but it seems unconfirmed times are far less than immature status in *coind wallet app... Any advice how I can get my coins quicker instead of waiting ...
2
votes
1answer
50 views

What is the maximum number of multisigaddresses you can create? [duplicate]

I have created a few multisig addresses, and just tried to create a 2 of 3 address, but it returned with the 'AddCScript() failed' error. What is the maximum number of m-sig addresses and where is ...
3
votes
2answers
53 views

What's an efficient model for redistribution of coins between wallets?

Let's say I have 50 addresses which have an average of 0.5 BTC. Some have two or three times the average balance, while others have less than 0.1% of the average. Many times per day an address is ...
0
votes
1answer
37 views

Transaction schedule

I`m thinking about building a business with a friend of mine. The business would use bitcoin as its primer currency, because we expect most of the transactions to be rather small amounts of money (1 ...
2
votes
1answer
73 views

Transactions within orphaned blocks

Scenario: You are running a bitcoind node and listening to the incoming blocks/transactions. You receive TX 1 which is put into your mempool. Block A is mined, and includes TX 1, which is ...
-1
votes
1answer
27 views

To transact an amount less than minimum transaction amount

Lets consider minimum bitcoin transaction amount is $10 and is it possible to send an amount which is less than $10?
1
vote
0answers
13 views

Problem receiving - confirmations stuck?

I have tried to transfer some btc being a first time user from one wallet to another (both online version). It seems the btc was sent but the receiving wallet is still showing '0' 24 hours later. ...
2
votes
0answers
25 views

How can one know which money exchanges happen in Ripple? [duplicate]

In Ripple, money can be exchanged in two ways: a payment is sent from a person to another person 2 satisfying offers fulfill each other The Ripple wiki states When an offer is placed it will ...
0
votes
1answer
37 views

How many transactions in One Block?

Block is collection of transactions.Who can decide Number of transactions per block? and How transactions are selected in block? and How does the priority works for fee transactions? Thanks
0
votes
1answer
29 views

multiple parties to sign a transaction before being broadcast (or after, but either way be associated with)

Lets say someone was writing a transaction solely to denote the existence of something, or a timestamp, or writing something in OP_RETURN Could that transaction be signed by other addresses, kind of ...
2
votes
1answer
118 views

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

My Target I want to create and sign bitcoin transactio using 'bitcoind' and 'bitcoin-cli' only. But the private key is unrelated to 'bitcoind' built-in wallet. That is, private / public key pair was ...
0
votes
1answer
73 views

How to calculate multisig address?

Given the transaction below, how can I - Identify this tx involves multisig What tool/s can I then use to calculate the resulting multisig address The second HEX address ...
2
votes
1answer
29 views

On quering the blockchain, can someone read what transaction took place? [closed]

Like considering the Alice Bob ex where Alice is the customer and Bob is the merchant. If Alice and Bob signed a contract where alice will pay bob on the delivery of a service. The transaction took ...