Questions tagged [coinbase-transaction]

The "coinbase transaction" is the transaction inside a block that pays the miner his block reward.

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Values for txid and vout for create a coinbase transaction

I want create a coinbase transaction to go with a new block minned by my program. I am creating it with the json-rpc command createrawtransaction. What's the values for txid and vout in this case?
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Extra bytes in coinbase

I am working on blk file parser and there is problem with one of coinbase tx. hex: 00000000: 0b11 0907 cf44 0e00 0000 0020 7f00 6e33 .....D..... ..n3 00000010: 4287 2eb8 c047 5d7c 16de 070e 5d88 ...
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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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Where is the extraNonce in this coinbase transaction here?

https://blockchain.info/tx/c1669dabe1bcadf50c4b712e42da7b3d3152aef53752731b04a4f585dde6f5f2 The coinbase states this: ...
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Why do not all the coinbase texts have the block heigh in it?

The coinbase text of #511329 starts with a, #511330 starts with b, #511331 starts with c... (and so on until z), but #511426 for example starts with F, the next one with m, the next one with "... ...
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A different way to create coinbase transaction

AFAIK when a miner succeeds in creating a block, he puts a special transaction (coinbase) in it which spends no input and sends a fixed amount of BTC to an address he can arbitrarily specify. Instead ...
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Why does won't my bitcoin transaction complete? It has thousands of confirmations

My transaction has over 4000 confirmations and has been pending for over 3 weeks in my Coinbase wallet. The money is not available and shows as "pending". What is going on? If it had 0 confirmations I'...
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When / how frequently do miners get paid for transaction fees? [duplicate]

When or how frequently do miners get paid for transaction fees?
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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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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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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 ...
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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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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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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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I got a coinbase transaction and I don't know where it comes from

I received a small payment from a coinbase transaction, but I haven't been mining nor I have signed up on a mining pool. Does this happen when someone accidentally sets my address instead of theirs ...
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3answers
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Is there a way to access transactions that happen inside exchanges?

For example coinbase is an exchange and so, their transactions are done off of the blockchain. They do however expose an API, which I believe should expose their own coinbase "blockchain" ...
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Why is it so expensive to transfer Bitcoins?

I am starting with bitcoins and I want to buy some neo and ripple. Like every newbie I typed "Buy neo" on google, and a lot of tutorials say I can not buy directly neo, I have first to buy some ...
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Can Coinbase Bitcoin network fee really be 50%

Ive just bough £47.81 of bitcoin. After fees i'm left with 0.00375837 BTC. I want to buy another cryptocurrency but the network fee is 0.00186539 so i'm left with only £24.41. Can this fee be ...
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Does GDAX use its own wallet to send Bitcoin on my behalf?

I am new to cryptocurrencies and Bitcoin specifically. I recently made a transaction by transferring some Bitcoin from my GDAX wallet to my Binance wallet. Here is my public key: https://blockchain....
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Can I download only a coinbase transaction at a specified block height?

I want to implement a client similar to SPV client. The client will download block headers and coinbase transactions. There is an api of downloading block headers such as getheaders. However, it ...
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After creation, what I have to do with a coinbase transaction?

I have create a coinbase transaction successfully with the command: createrawtransaction '[{"txid":"0000000000000000000000000000000000000000000000000000000000000000","vout":0}]' '{"...
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Which online wallet has the least transaction fees?

I used to use Coinbase.com, but recently the fees are jumped up dramatically, so that for example for a $14 transaction it charged me $2 today. That's to much even by Paypal standards! So I'm ...
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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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Variables in Coinbase Transaction & Decoding I/O Scripts

I just have a few questions to help better my understanding of the coinbase transaction. Example: ...
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Why is BTC transfer on coinbase taking 30+ hours? [closed]

I'm really frustrated from the really bad service of coinbase.com. I'm waiting for a transfer of 0.14 BTC for 30+ hours which is ridiculous! Customer support is totally missing, service is really bad. ...
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Spreading reward of a block over the miners proceeding it

Say I want to implement a rewarding scheme that spreads the reward of a block over its own miner and the miners that build on top of it. Is it possible? More concretely, say each of my blocks bring ...
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Coinbase purchase bitcoin transaction pending, why is it painfully slow to purchase [duplicate]

I have purchased bitcoin using coinbase app 3 hours ago and the transaction is still pending. Is it usually this painfully slow to transact on coinbase?
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How generate a hex string for a block

I have written this code to create and submit a new minned block to the bitcoin network: unsigned long magic_number = 0xD9B4BEF9; unsigned long block_size = 89 + (strlen(coinbase_transaction)-1) +...
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How are bitcoins generated during mining? [duplicate]

I know that when someone is able to find a block and hash that can be attached to the chain, he will be awarded with "newly found bitcoins" However, isn't mining simply finding the hash? Where do ...
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Changing the first payout address when a reward + fees is generated

I would like all my mined coins (solo mining, testnet so far) to go to a different default account. I'm not referring to the distribution a mining pool will do to all of its miners (Pay per share, ...
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Is the miners address part of the block or the block header? [closed]

Should the following be sufficient merkle root, block number, previous block hash, timestamp and nonce?

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