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 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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367 views

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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1answer
370 views

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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1answer
3k views

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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native support for coinbase/append in getblocktemplate

I'm trying to understand the "coinbase/append" capability outlined in BIP 23. Essentially, why is it not supported in bitcoin's getblocktemplate method? Does the capability not make sense in that ...
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should i can use my coinbase 12 backup phrase into blockchain wallet?

i have one question in my mind i can able to recover my wallet of coinbase using 12 backup phrase into blockchain wallet it will be accept it? and restore my all crypto of coinbase into blockchain ...
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2answers
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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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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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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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1answer
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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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1answer
62 views

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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1answer
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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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1answer
314 views

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?