The coinbase tag has no wiki summary.
1
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2answers
315 views
How can I send bitcoins to my coinbase.com account for conversion to USD?
First, I am not a merchant and I don't really care to become one (for now.) Recently, I sent some BTC to Mt.Gox, sold them and then conveniently found out that I now have no way of withdrawing my USD ...
0
votes
1answer
47 views
What was the design decision behind that the coinbase field can have arbitrary data?
From what I learned, the coinbase field in the block reward transaction can carry any data (As long as smaller than 100b).
Why that actually? Was it easier to implement in the beginning? I would just ...
0
votes
0answers
59 views
Why coinbase doesn't address callback?
I am using PHP cURL to generate new address from coinbase. As per this documentation we get notification on the callback url when any transaction is made on the generated address. But I am not getting ...
1
vote
1answer
77 views
API with reliable address callbacks?
I want my app to be able to create addresses and be notified when an address receives a deposit. What I've tried so far doesn't work reliably enough.
I've tried the Coinbase API (address callbacks ...
2
votes
1answer
69 views
How is the encoding of extraNonce done in the genesis block?
You can see here the coinbase of the genesis block
txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, ...
2
votes
1answer
137 views
How do I create the coinbase from the genesis block?
I wanted to write an application that given a timestamp(text basically) and a public key will generate a merkle hash for the creation of a new genesis block. So I decided to first try and re-create ...
1
vote
1answer
151 views
coinbase.com buying queue
I am trying to buy bitcoins, and I have just recently got my bank account verfied on coinbase.com, and I am trying to buy bitcoins.
When browsing the buy page, I got the following message
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1
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2answers
78 views
Earliest block with spent coinbase
What is the earliest block in the blockchain that has a spent coinbase? I have manually looked at the first dozen or so but they are all unspent.
4
votes
1answer
246 views
How to retrieve POST data that contains JSON
I have never used JSON before and am trying to retrieve the values POSTed to my site from coinbase. But I have no idea how to.
Information about the IPN and callback can be found here: ...
2
votes
1answer
54 views
Is there any way to get the block number of generation from coinbase?
I was looking on http://blockexplorer.com/ and saw a coinbase of ...
3
votes
3answers
296 views
How do you get the OP_HASH160 value from a bitcoin address?
I'm trying to sign a coinbase transaction. I know I need to use 76 A9 14 (HASH160) 88 AC but I don't understand how to create the HASH160 (20 byte) from a bitcoin address.
2
votes
2answers
187 views
What is the format of coinbase input scripts?
The input script of the coinbase transaction of block number 1 (right after the genesis block) looks like this: 04ffff001d010b
How do I recognize this as a coinbase transaction?
Do I simply know ...
