Questions tagged [coinbase-transaction]
The "coinbase transaction" is the transaction inside a block that pays the miner his block reward.
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i have sent USDT from Binance to BTC Coinbase. How to Recover USDT?
I have done iamistake : Sending USDT from Binance to BTC Coinbase.
Binance are not able to help, they are saying that the transaction is confirmed on their side. Coinbase does not take time to answer ...
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1answer
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Mining pools repayment in a coinbase tx [duplicate]
Is it possible to add more outputs than one to the coinbase transaction? And if it is, can miners use them to repay users for renting hash to the pool?
I think in this case they know who to pay and ...
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Coinbase out going wallet transfer is stuck pending foour days now [duplicate]
My Brother Sent me Bitcoin on Coinbase he sent it to my mobile number and not my Couibase wallet its now stuck saying transaction is Pending been four days checked Blockchain no record of transaction....
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How to generate a coinbase transaction?
I am creating a miner in C++ for solo mining, and am struggling to create the proper coinbase transaction.
Say I have a bc1 address, like bc1qfc7fameteuguetm0kfzypnvf2ju6wppdvj6tkc , what would be and ...
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1answer
1k views
Why is coinbase mentioned in a BIP?
I thought that BIPs were similar to Pythons PIPs. So I was confused when I read BIP 34 mentioning coinbase explicitly. The author, Gavin Andresen, seems not to have a connection to coinbase.
I thought ...
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how do i convert bc1 address to hex? for coinbase transaction
Im trying to create a coinbase transaction so that I can do some mining.
I have a bech32 bitcoin address, how do I convert that to hex so that I can include it in the coinbase transaction data?
...
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1answer
78 views
Why am i picking up 2 blockchains for my BTC address
So this is my address
38UPP6po1NJvNQoTavvTBzbRi1bKcyR7tZ
And i am picking up 2 blockchains ,one for BTC and BCH ? I did a transfer a week ago and i am not sure why i cant see the funds in my coinbase ...
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412 views
Is there a lower percentage cost to transfer from Coinbase or Coinbase Pro to my mobile wallet? [closed]
I am trying a mobile wallet, so that I keep some bitcoin on my mobile phone. So I downloaded Coinbase wallet, and tried to transfer 0.001 bitcoins from my Coinbase or Coinbase Pro to the Coinbase ...
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How do I compute the coinbase in for a stratum pool?
I searched around Google and didn't get a correct answer, some one says I should use:
hashed_coinbase_ = coinbase1 + extranonce + extranonce2 + coinbase2;
And some other pages says:
hashed_coinbase_ =...
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The price of coinbase Satoshies vs the price of mixed coins
I think that it is not pure fair that any of BTC Satoshies has the same price.
And what do you think about the recently mined coins that perfectly clear, or coins that has some grey history behind ...
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86 views
Bitcoin in RegTest throw (bad-cb-height) at block No. 500
Mining in RegTest mode goes well until it's reach block height=500, then server return (bad-cb-height) any idea what is wrong with this coninbase:
02000000
01
...
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1answer
32 views
How basecoin transaction is added to a block?
I'm new to blockchain and bitcoin. In my understanding, miners are trying to find a nonce that is added to a block, and then the hash of the block will have some zeros at first and the first ...
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2answers
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Why does Bitcoin Core mention “Coinbase transactions”, and what are they? [duplicate]
Quote:
"category" : "str", (string) The transaction category.
"send" Transactions sent.
...
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1answer
60 views
What`s a blocks coinbase value?
Under the bitcoin Protocol rules here:
https://en.bitcoin.it/wiki/Protocol_rules#Transactions
in the "block" messages section
There is the pseudo-algorithm for validating a given block.
On ...
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1answer
403 views
What happens to a coinbase transaction when no address is given?
The transaction block
This coin base transaction has no valid address for reward. Did we lose that reward bitcoin forever?
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91 views
How to create bitcoin coin , coinbase transaction?
I know about
createrawtransaction '[{"txid":"0000000000000000000000000000000000000000000000000000000000000000","vout":0}]' '{"39jbHRLG6Z2KgXLHR3BWgbccZde1Moo15k"...
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As required in BIP 34, how miners put the Block Height to their coinbase transaction
I created a coinbase transaction with the createrawtransaction method as follow:
createrawtransaction '[{"txid":"0000000000000000000000000000000000000000000000000000000000000000",&...
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2answers
62 views
Merkle root with one transaction
I am trying to build a merkle root which contains only the coinbase transaction from bitcoind
After creating the coinbase transaction i need to convert it to little endian, hash it twice and then put ...
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2answers
128 views
How create coinbase transaction with createrawtransaction?
I would like to generate a transaction with createrawtransaction such that it can be passed to submitblock along with the block header.
I tried to use:
[{"txid":"...
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2answers
179 views
Why is the scriptSig formatted this way in the Genesis Block (inside function CreateGenesisBlock)
I was exploring the function static CBlock CreateGenesisBlock inside src/chainparams.cpp and I was looking at the way Satoshi created its scriptSig:
txNew.vin[0].scriptSig = CScript() << ...
3
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1answer
47 views
What does “generate” mean when it appears as a transaction's type?
What is "generate" as a bitcoin transaction type? Why are "generate" transactions labeled as "immature" for 100 blocks? Is this type of Bitcoin transaction spendable?
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1answer
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A Bitcoin soft fork idea to help compress the blockchain
I've thought about a soft fork that can help storage costs.
Why don't we force miners to embed the height of the TX Merkle tree in the first two bytes of the 4-byte block header version?
It would ...
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1answer
55 views
Script_sig for coinbase transaction afbff1130b6fcbdceebbadfc48a842af1f03ee08a79e042b37fc467518b49a0f
I am currently developing a blockchain parser in Python, and it has been crashing in the file blk00006.dat for the coinbase transaction with the hash ...
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1answer
67 views
How does exchanges, such as coinbase handle off-chain transaction?
Does coinbase create a channel between each customer and coinbase itself?
If i buy 10 USD of bitcoin from coinbase, where does the 10 USD worth of bitcoin come from? Does coinbase maintain a huge ...
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1answer
47 views
Is it possible, with bitcoin-core or btcd, to manually set the scriptSig field in a coinbase transaction?
I am talking about when using regtest or simnet modes.
For context, it is so that I can create coinbase transactions with reproducible txids.
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Can a coinbase transaction have a segwit output?
And more generally speaking, are there any restrictions on the output of a coinbase transaction?
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88 views
Where and when should the coinbase transaction(including the miner key) be added?
I'm making a simple demonstrator program, pretty much a simplified bitcoin clone based mostly on the original whitepaper.
Please bear with me, because I haven't found a way to describe the problem ...
3
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1answer
69 views
Was it always required for the Coinbase transaction to be the first transaction in a block?
The user tempo mentioned on another topic:
"At least in the early protocol versions it was possible to put the coinbase transaction not on the top of the outputs."
I have never heard about this ...
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23 views
Coinbase customer service [duplicate]
Does anyone know how to get a hold of a human being on the phone at coinbase? Or the contact info of a good crypto lawyer? Their customer support is lacking. I have a stuck transaction going on two ...
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1answer
262 views
How to create a bitcoin transaction without inputs
How can I create a transaction without inputs and it will be broadcasted but of course won't get confirmed? I would like the simplest method to do this
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1answer
603 views
How to decode a coinbase transaction?
Below is block result of block height 200,000
{
'hash':'000000000000034a7dedef4a161fa058a2d67a173a90155f3a2fe6fc132e0ebf',
'confirmations':396774,
'strippedsize':247533,
'size':247533,
...
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1answer
268 views
reconstruct block template from stratum mining.notify
I have a mining notification from a stratum pool. I wish to write a general script to extract the value of the block reward that the pool is taking. That is, reconstruct the block template, or at ...
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Where are Drivechain votes computed?
In the context of the Drivechain proposal, for UTXOs in miner-controlled escrows to be spent, they have to be voted on by each block over a large number of blocks, right?
Now, how are these votes ...
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1answer
443 views
Why does this coinbase transaction have two op_return outputs?
I've been looking at coinbase transactions for fun and I came across one with two op_return outputs..
Does anyone know what the second one is?
Also, I understand the first op_return is used to ...
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BIP0034 block height using python-bitcoinlib
I'm doing some experiments for finding coinbase height from freshly mined block which is received from ZMQ.
tx_coinbase = CTransaction.deserialize(x('...
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1answer
3k views
how recover my money in Coinbase Wallet?
I just wanna ask if there is possibility to recover my money in coinbase wallet. I forgot my recovery phrase but i remembered my btc wallet address and TXID. thanks
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1answer
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Can a block have multiple coinbase transactions? Also is there a limit to the number of signatures a multi-sig transaction has or requires? [closed]
I am wondering if a block can be created with multiple coinbase transactions. The US government regulates mining pools that have control over the miner's wallets, so it would be fabulous if this could ...
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1answer
112 views
Can a miner give themselves less than the maximum block subsidy if they wish to do so?
The current maximum block subsidy is 12.5 bitcoin. A mined block recently got rejected from full nodes after a miner tried to post the block subsidy as 13.26 bitcoin. But what about in the other ...
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1answer
87 views
When does miner insert the coinbase transaction?
When a miner creates the candidate block with transactions from the mempool, does he insert the coinbase transaction after winning the PoW or during PoW?
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Is Coinbase transaction required to be signed?
I am trying to build a coinbase for mining with the following steps:
1-Create dummy Input and output.
2-Pass them to CreateRawTransaction as collection/
3-Get a transaction back and fill the empty ...
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2answers
342 views
What is the source of initial transactions of bitcoin?
Sorry, if I am wrong or silly!
It is understood that:
a) Satoshi Nakamoto sent the first transaction to developer Hal Finney on January 12, 2009, the genesis block contains 1,073 transactions and he ...
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1answer
71 views
Is there a maximum balance that a single address can hold?
Is there a maximum number of satoshis that a single address can control at a single time? I ask because when I generate regtest blocks to a single address, it's balance gets stuck at 1494999998350 ...
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1answer
101 views
What is the maximum number of bytes the coinbase scriptSig (coinbaseaux) can hold?
Since the scriptSig of the coinbase transaction of a block can contain arbitrary data, what is the maximum number of bytes it can contain? I've seen various mentions of a limit around 100 bytes, but ...
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1answer
499 views
Is there a way to create coinbase transactions with an RPC command?
Is there a way to create coinbase transactions with an RPC command?
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1answer
409 views
collecting block reward and transaction fees
i was reading document about transaction data and there seems to be two contradicting paragraphs:
Every block must include one or more transactions. The first one of these transactions must be a ...
2
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1answer
284 views
identical coinbase transactions
this sounds like an old topic but i have not found a satisfying answer yet; in history there lived two blocks with identical coinbase transactions:
https://www.blockchain.com/btc/block-index/106662
...
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What is the purpose of the script like RETURN PUSHDATA(36)(…)
The example is in here:
https://www.blockchain.com/btc/tx/63910fdfa84db96bd1f28fead4c32f97388d5368c10059d035aac3c5f72fcdc0
Actually, there are two outputs
DUP HASH160 PUSHDATA(20)[...
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2answers
378 views
Differentiating Output Script (scriptPubKey) Types
I am working on a little script to breakdown the data inside coinbase transactions. This is largely to improve my understanding of legacy and SegWit transactions (Given coinbase transactions have less ...
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1answer
354 views
Why does Bitcoin block 526,591 have a 6.25 (instead of 12.5) block reward?
https://chain.so/block/BTC/0000000000000000002ba5a1fb96f93e6c215d62db4280f1cbd30e82c7c71fba
https://blockchair.com/bitcoin/block/526591
It's an empty block (zero transactions), but the coinbase ...
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1answer
353 views
Variables in Coinbase Transaction & Decoding I/O Scripts
I just have a few questions to help better my understanding of the coinbase transaction.
Example:
...
