Questions tagged [output]

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What does "Nonstandard output" mean on Tradeblock transaction page?

I tried to send bitcoin but the recipient hasn't received it. The trade block page shows "Nonstandard output" under outputs as shown in the link below: Tradeblock page for transaction I used an ...
S.Brown's user avatar
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1 answer
62 views

Two question about bitcoin transaction signing

I know that the signing should use public key, what if the private key is used in signing the output? Does that mean anybody can use the money in your wallet? And is there any difference between P2PKH ...
slylljyq's user avatar
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181 views

Newly generated coins

New to BTC world so my question is how and what can I do with newly generated coins what's the process and how to see balance of that in wallet? Can I send those to paper wallet
Patty's user avatar
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-1 votes
1 answer
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Are there minimums for output values and transaction fees in Bitcoin?

The article "The Bitcoin Lightning Network Summary" by lightning.network mentions: "Lightning enables one to send funds down to 0.00000001 bitcoin without custodial risk. The bitcoin blockchain ...
Questioner's user avatar
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How do these inputs/outputs make sense for this transaction?

Using coinbase, I transferred $1 in BCH to my friends BCH address. Now I am studying the transaction on a blockchain explorer as a learning exercise. See here: https://blockchair.com/bitcoin-cash/...
COOLBEANS's user avatar
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1 answer
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Why does this transaction results in more than 1 unspent output?

This transaction results in 6 outputs in total. Why did it end up with having 4 unspent outputs? I read this answer from another question, and wondering, could it be because the user actually chooses ...
Darius's user avatar
  • 105
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2 answers
119 views

Why does this transaction results in only 2 unspent output (and no spent output)?

This transaction is from one of the latest block. However I don't understand why it seems to be just dividing a single transaction without being spent and transferred to someone else.
Darius's user avatar
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2 votes
2 answers
784 views

What are the hashes in Unspent outputs?

I am a newbie to Bitcoin. Looking at curl https://blockchain.info/unspent?active=1Cdid9KFAaatwczBwBttQcwXYCpvK8h7FK I guess that the script is the owner's address.I am not sure about this. "...
MikiBelavista's user avatar
5 votes
2 answers
385 views

what's the point of "n" in "vout"? getrawtransaction

It seems like "n" is the index, is that true? If that is the case, why is the "n" key necessary? Example: bitcoin-cli getrawtransaction ...
sizzlecookie's user avatar
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1 answer
279 views

Generating Output Script from Bitcoin.js or other Javascript Library

I'm attempting to use the Ledger Wallet API to sign a multi-sig transaction. The API works as follows: var inputs = [ [ "71f97fa2a21486ecd99674a8ae068d92acd2e9db49c199473be39984e6cbe0f6", "00000000"...
patwhite's user avatar
  • 101
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1 answer
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I seem to have too many unspent outputs for my given balance. What am I missing?

I have an address on the testnet. I started out with 1.3 btc. I then sent 0.5 btc to another address. My balance is now 0.8. OK, that makes sense. I expect now to have one UTXO which was the 0.8 in ...
Bastien's user avatar
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2 answers
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How output transaction works in Bitcoin?

Click here for reference. Note also that an output can be used only once. That's why there's a concept of "change address" in the bitcoin ecosystem: if an output of 10 BTC is available for me to ...
Gagan's user avatar
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1 answer
85 views

Why do I get 5 bytes worth of 0x00 hex values in both outputs?

From the hex generated by the createrawtransaction command, I understand that the following is the output value: ...
oshirowanen's user avatar
0 votes
2 answers
146 views

Breaking down the hex value for output 1

Within the hex generated by createrawtransaction, I am trying to understand the output 1 hex. The output 1 hex I have is: 76a914ab68025513c3dbd2f7b92a94e0581f5d50f654e788ac Spacing out the ...
oshirowanen's user avatar
7 votes
1 answer
831 views

What are the standard formats of transaction outputs?

A transaction output can have the type Pay to public key hash, P2PKH, where the ScriptPubKey field has the format: 76 a9 14 <20-byte hash of pubkey> 88 ac Pay to script hash, P2SH, used for e.g. ...
Thorkil Værge's user avatar
1 vote
1 answer
433 views

How to find out the requirements for spending an output script?

How do you find out the requirements to spend an output script? Do you decode the hash?
Errol's user avatar
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3 votes
1 answer
155 views

At most two outputs according to Bitcoin whitepaper. Multiple outputs in real transactions. How come?

The original Bitcoin whitepaper mentions that there can be at most two outputs: Normally there will be either a single input from a larger previous transaction or multiple inputs combining ...
Piero's user avatar
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1 answer
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Could someone explain how the TX operation here works?

I know this is a BCH address, but it's the best example I could find. The same concept holds for BTC, so understanding what's going on is relevant. https://explorer.bitcoin.com/bch/tx/...
EvilJordan's user avatar
1 vote
1 answer
568 views

where do unspent outputs come from?

This post asks the same question: What is an "unspent output"? but the answers for me are completely incomprehensible, probably because I lack a key piece of knowledge. I have read every ...
John Little's user avatar
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1 answer
2k views

what happens to UTXOs when a transaction output script is satisfied?

As per my understanding from the book "Mastering bitcoin", a transaction output contains three things Amount - Bitcoin Value in Satoshis Locking-Script-Size - Locking-Script length in bytes, to ...
Learner's user avatar
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Forwarding BTC without approval

Since all I need in order to send a transaction is the receiver address. What is the mechanism (if any) that stops me to send transactions to someone BTC without his approval?
Mr. Turing's user avatar
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1 answer
75 views

BTC not received after sending

I have a transaction sent from Coinbase on 12 Dec 2017. i can see it on the blockchain, fees taken but the rest is unspent. How can I force the transaction to complete. Why didn't it complete ...
Frances's user avatar
5 votes
1 answer
860 views

Will all UTXOs eventually be worth 1 Satoshi?

If I want to spend 0.4BTC and I only have a UTXO for 1.0BTC, I will send 0.4BTC to the seller's address and 0.6BTC to my address. The seller has one UTXO and I have the other. One UTXO has become two....
dentaku's user avatar
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5 votes
4 answers
180 views

Is it possible to make an output only spendable to a specific address?

Basically, the entire question fits into the title. Does the Bitcoin scripting language allow for a transaction output to only be spendable to a specific address? Is it possible to forbid all other ...
UTF-8's user avatar
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1 vote
1 answer
268 views

Does input and output size vary by address type?

For instance, we have two outputs, output X sends to a P2SH address, and output Z sends to a P2PKH address. Would output X have a different transaction size than output Z? What about the size of the ...
Adam's user avatar
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30 votes
1 answer
28k views

What is P2PK, P2PKH, P2SH, P2WPKH - ELI5

Explain like I'm 5 years old and my other half of the brain is surgically removed :) I don't want to put a lot of stress on my brain Also what is the difference between BTC held in P2SH and Unspent ...
user380208's user avatar
2 votes
1 answer
597 views

Can a low fee unconfirmed transaction prevent confirmations of following transactions?

To be more precise, consider the following situation: Address A gets an input of 4 BTC. You try to make a transaction from A to B with 1 BTC and a very low fee, which means its unconfirmed for a long ...
Ahia Cohen's user avatar
1 vote
2 answers
133 views

Can unspent outputs only get smaller?

It seems that when transactions occur the outputs only get smaller and are never aggregated. There is no apparent way to combine multiple outputs into a single output. The problem I see with this is ...
Harry Pillsbury's user avatar
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1 answer
1k views

How to create raw bitcoin transaction with multisig type of output scriptPubKey

I need to send money in one transaction to 2 addresses so that any of them can spend it. In other words - I need to create same transaction as here https://www.blocktrail.com/BTC/tx/...
Daniil Kamenskiy's user avatar
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1 answer
89 views

Under what conditions could a change address immediately send the entire balance to a third-party address?

I have a situation where I sent 1 coin to and address I own and my wallet sent the unspent output to a change address but due to a glitch in the wallet software, that change address doesn't show up in ...
JimTW's user avatar
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1 vote
4 answers
2k views

How to retrieve unspent outputs on mSigna

Due to an upgrade, I had to recreate my wallet (vault) file from scratch - a process that took over a week. During this time, I was able to spend one coin (sending it to blockchain.info) because I ...
JimTW's user avatar
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1 vote
1 answer
751 views

NBitcoin: Get address out of raw block stream

OK, I am sure that this is a really dumb, rookie question, so sorry in advance... I am trying to read through the blockchain and display the receiving address(es) for all transactions in the chain. (...
AmbitiousScriptKiddy's user avatar
1 vote
1 answer
308 views

How does Bitcoin know if enough BTC are available for an account to allow a transaction?

Let's consider this simplified blockchain: BLOCK 108 address ddd111 received 2 BTC by mining block 108 BLOCK 109 address abc123 received 2 BTC by mining block 109 BLOCK 110 address xyz999 created ...
Basj's user avatar
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3 votes
1 answer
142 views

How come that there can be many transfers in a single Bitcoin transaction?

In Ethereum one transfer has one transaction ID. How come there can be many transfers in a single Bitcoin transaction? For example, in this transaction: https://blockchain.info/tx/...
YVGorshkov's user avatar
0 votes
1 answer
1k views

How blockchain.info calculate the value transacted

Having this address: https://blockchain.info/address/19tqZYnP9youKtbene2FZiZtZyJYaLeBDw The last transaction says that this address received 0.0236 BTC But even knowing the value in and the value ...
Enzo's user avatar
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1 vote
1 answer
167 views

Processing multiple transactions very fast

Let's say I run an automated script, with the main purpose to send transactions as fast as possible. I want to send one transaction with 5 BTC to one address and a transaction with 2 BTC to another. ...
Fabulous Job's user avatar
0 votes
1 answer
350 views

Why didn't my change come back to my wallet? And where is it now?

I sent a payment for 198.52 mBTC using Electrum. There were two outputs. One for 196.39 mBTC that arrived. There was another output of 2 mBTC that I'm assuming was processed as change. Does anyone ...
Wilbur's user avatar
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0 votes
1 answer
1k views

Determine inputs/outputs of a transaction before sending

I am attempting to build a working withdrawal system where users can withdraw funds in BTC. I am required to estimate the fee before allowing them to withdraw to include it in their payment. I was ...
Monstrum's user avatar
  • 1,334
2 votes
1 answer
1k views

Parse UTXO of a transaction from chainstate

I'm doing some analysis on the UTXO set by reading from the chainstate database. I was following the documents given by https://github.com/bitcoin/bitcoin/blob/...
h__'s user avatar
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1 vote
1 answer
149 views

Whats the minimum recommended output for a faucet-like system? (April 2017)

I am building a software to involve friends. I am testing it. I made several sendmany transactions with 43478 Satoshi. I wont be using high fee Bitcoin system man....... There are better things ...
Danystatic's user avatar
0 votes
1 answer
77 views

Are there other ways to have more than one address involved in a SINGLE transaction input or a SINGLE transaction output?

Full question: Except for the case of multisignature, are there other ways to have more than one address involved in a SINGLE transaction input or a SINGLE transaction output?
Aqqqq's user avatar
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1 vote
1 answer
169 views

How can a Bitcoin transaction be used multiple times (If it is so)?

My understanding is that a transaction is a transfer of value between Bitcoin wallets that gets later included in the block chain. So a Bitcoin transaction is used only once in my understanding.
Aqqqq's user avatar
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8 votes
2 answers
3k views

How to retrieve the from and to wallet addresses of a transaction?

Given a transaction's inputs and outputs, I'd like to be able to extract the wallet address (or addresses) which sent the transaction, and also the address/addresses that will receive the transaction. ...
Click Upvote's user avatar
1 vote
0 answers
35 views

Is it possible to to create an output in a transaction that has a value of zero? [duplicate]

When you create a transaction, can you create outputs that have values of zero? Or does every output have to have a value greater than zero?
inersha's user avatar
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2 votes
2 answers
838 views

How to track the bitcoins I spent?

I'm studyng the transactions and how they work. Suppose I would track some bitcoins that I spent. This is a scenario: My pubblic addresses are: addr1 and addr2. I made a transaction tr1 (output like ...
d3llafr33's user avatar
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1 vote
1 answer
1k views

Spending transaction with custom output

I've recently entered the bitcoin arena, and bitcoinj was my tool choice. Experimenting on regression test mode, I was able to create the following custom transaction. It has a modified locking script ...
Ibrahim Al-Saud's user avatar
0 votes
1 answer
91 views

Confused about this particular Multisig transaction with a (maybe) invalid scripts, but spent output

I am confused about this particular transaction: { "txid": "c49b3c445c89d832289de0fd3b0281efdcce418333dacd028061e8de9f0a6f10", "hash": "...
Albert S's user avatar
  • 1,630
1 vote
1 answer
77 views

Do all outputs have an address associated with them?

I guess more specifically, a decodable address? I have seen transactions on blockchain.info where the address was "unable to decode" Is there a way to count these? Also do they stay in the UTXO set ...
Albert S's user avatar
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3 votes
1 answer
434 views

How do they put several bitcoins into a block?

I recently read that there is an auction to sell almost 24,000 bitcoins, and that they have put them in blocks, each containing 2000 coins. What does that mean to put 2000 BTCs in a block? Can ...
torstack45's user avatar
4 votes
1 answer
193 views

Can a transaction have more than one recipient?

I am quite new to Bitcoin. I have a doubt. Let's say I, person A, have 1 bitcoin. I want to send 0.5 BTC to person B and 0.5 BTC to person C in a single transaction. Is it possible to do so within ...
jgm's user avatar
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