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Author Topic: "datacarrier" command?  (Read 1170 times)
cochranizer666
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January 17, 2017, 01:19:25 AM
 #1

Can someone please explain the following Bitcoin Daemon command for me please?

Code:
bitcoind -daemon -datacarrier

Much appreciated!
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January 17, 2017, 01:25:09 AM
 #2

Can someone please explain the following Bitcoin Daemon command for me please?

Code:
bitcoind -daemon -datacarrier

Much appreciated!

Check out:
https://bitcoin.org/en/developer-guide#term-null-data
And
https://github.com/bitcoin/bitcoin/pull/2738
And
https://bitcointalk.org/index.php?topic=957509.0

Do those help?
cochranizer666
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January 17, 2017, 01:34:46 AM
 #3

According to what I've read, it seems to me that the datacarrier syntax allows you to mine specific transactions? Am I getting this correctly?
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January 17, 2017, 01:37:56 AM
 #4

According to what I've read, it seems to me that the datacarrier syntax allows you to mine specific transactions? Am I getting this correctly?

If I'm not mistaken, bitcoind does not allow you to mine
 It hasn't for a long while.

The datacarrier command allows you to change whether your node stores OP_RETURN transactions in its UXTO pool.

I'm pretty sure that's it.



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cochranizer666
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January 17, 2017, 01:39:48 AM
 #5

According to what I've read, it seems to me that the datacarrier syntax allows you to mine specific transactions? Am I getting this correctly?

If I'm not mistaken, bitcoind does not allow you to mine
 It hasn't for a long while.

The datacarrier command allows you to change whether your node stores OP_RETURN transactions in its UXTO pool.

I'm pretty sure that's it.

If that's the case, then why are there multiple cloud mining services, like Genesis Mining, Hashflare, and the brand new MinerGate service? UPDATE: They have to come from some outdated node or something.
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January 17, 2017, 01:50:10 AM
 #6

According to what I've read, it seems to me that the datacarrier syntax allows you to mine specific transactions? Am I getting this correctly?

If I'm not mistaken, bitcoind does not allow you to mine
 It hasn't for a long while.

The datacarrier command allows you to change whether your node stores OP_RETURN transactions in its UXTO pool.

I'm pretty sure that's it.

If that's the case, then why are there multiple cloud mining services, like Genesis Mining, Hashflare, and the brand new MinerGate service? UPDATE: They have to come from some outdated node or something.

First things first, let's get this out of the way. No one uses Bitcoin core or bitcoind to mine anymore. There are better clients out there that mine.

For example, CLminer or GUIminer.

Secondly, there is no actual proof as far as I know that Genesis Mining owns any mining equipment. They sell unprofitable contracts, so they very well be a ponzi.

Thirdly, they probably forked mining software like the ones mentioned in my first point, and added GUIs or ran them for themselves.



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cochranizer666
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January 17, 2017, 01:53:50 AM
 #7

Oh, ok, I see. Well, to be honest, I am a bit of a noob, so I'm just learning the ropes on this.

Going back to my original post, I was wondering about the datacarrier syntax because I thought this command was fufillment for the Data Mining whitepaper written by SpreadCoin.
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January 17, 2017, 01:57:52 AM
 #8

Oh, ok, I see. Well, to be honest, I am a bit of a noob, so I'm just learning the ropes on this.

Going back to my original post, I was wondering about the datacarrier syntax because I thought this command was fufillment for the Data Mining whitepaper written by SpreadCoin.

I havent read their whitepaper, so I may be even more of a noon than you. To be honest, I've only read the Bitcoin, Iconomi, Ethereum and HashCash



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January 17, 2017, 02:25:45 AM
 #9

First things first, let's get this out of the way. No one uses Bitcoin core or bitcoind to mine anymore. There are better clients out there that mine.
This is slightly incorrect. Bitcoin Core no longer has the ability to create blocks. However it is still used to generate the data used by mining software. It is still used to build the blocks, but not actually for the hashing part of mining.



The -datacarrier option tells Bitcoin Core that it can include transactions containing an OP_RETURN output in the blocks that it builds.

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January 18, 2017, 01:15:40 AM
 #10

First things first, let's get this out of the way. No one uses Bitcoin core or bitcoind to mine anymore. There are better clients out there that mine.
This is slightly incorrect. Bitcoin Core no longer has the ability to create blocks. However it is still used to generate the data used by mining software. It is still used to build the blocks, but not actually for the hashing part of mining.



The -datacarrier option tells Bitcoin Core that it can include transactions containing an OP_RETURN output in the blocks that it builds.

Ah. So do mining clients like the ones I mentioned require a local Bitcoin client to be running, to generate the block header, or do they have this software bundled in.



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achow101
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January 18, 2017, 02:16:47 AM
 #11

Ah. So do mining clients like the ones I mentioned require a local Bitcoin client to be running, to generate the block header, or do they have this software bundled in.
They have to connect to something that can receive transactions, download and verify the blockchain, and build the block header. Those mining software cannot do that on their own. They either rely on a pool to do it for them, or they need a bitcoind to do it.

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