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Author Topic: Anonymous Coinbase Transaction  (Read 154 times)
Reza Nourmohammadi
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March 12, 2019, 07:51:48 PM
 #1

Is there any solution to have anonymous coinbase transaction in Bitcoin or other Cryptocurrency? Something like using coinjoin for coinbase transactions or something else.
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March 12, 2019, 08:00:57 PM
Merited by o_e_l_e_o (1)
 #2

CoinBase and anonymity are inversely proportional to each other.

Reza Nourmohammadi
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March 12, 2019, 08:07:09 PM
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CoinBase and anonymity are inversely proportional to each other.

How ? I would be grateful if you let me know. how can I mine a block while no one has no idea about the right address of miner?
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March 12, 2019, 08:13:48 PM
 #4

It is not possible to hide the output address of the coinbase transaction if you are a miner, however you can choose to have the block reward sent to a previously unused address, and not ever send any BTC to that address in the future (do not reuse the address). Anyone looking at the blockchain would know that block xxxxx was mined by the owner of 3x...x, but it would be difficult to know who owns 3x...x. If you find multiple blocks, you can have each block reward sent to a different address, and when you eventually spend the block reward, don't spend the inputs in the same transaction.


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March 12, 2019, 08:14:03 PM
Merited by ETFbitcoin (1)
 #5

I think the OP is talking about coinbase transaction as the first transaction when a new block is mined. Not about the coinbase exchange.

I don't think you can have an anonymous coinbase transaction, because all transactions are visible in the blockchain. But you can certainly make additional anonymous transactions after the fact (after the block has been mined and after the cooldown period of 100 blocks) by using coinjoin or similar services.
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March 12, 2019, 08:27:15 PM
 #6

I think the OP is talking about coinbase transaction as the first transaction when a new block is mined. Not about the coinbase exchange.

I don't think you can have an anonymous coinbase transaction, because all transactions are visible in the blockchain. But you can certainly make additional anonymous transactions after the fact (after the block has been mined and after the cooldown period of 100 blocks) by using coinjoin or similar services.

Yes, I mean block reward transaction by coinbase transaction. and I'm thinking about the anonymous coinbase transaction. It seems bad to have no solution for that
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March 12, 2019, 08:41:43 PM
 #7

I think the OP is talking about coinbase transaction as the first transaction when a new block is mined. Not about the coinbase exchange.

I don't think you can have an anonymous coinbase transaction, because all transactions are visible in the blockchain. But you can certainly make additional anonymous transactions after the fact (after the block has been mined and after the cooldown period of 100 blocks) by using coinjoin or similar services.

Yes, I mean block reward transaction by coinbase transaction. and I'm thinking about the anonymous coinbase transaction. It seems bad to have no solution for that
This is pretty easy. Get your coinbase Tx to a fresh address and then use CoinJoin or some other mixer to move fund from there.

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March 12, 2019, 09:01:47 PM
 #8

I think the OP is talking about coinbase transaction as the first transaction when a new block is mined. Not about the coinbase exchange.

I don't think you can have an anonymous coinbase transaction, because all transactions are visible in the blockchain. But you can certainly make additional anonymous transactions after the fact (after the block has been mined and after the cooldown period of 100 blocks) by using coinjoin or similar services.

Yes, I mean block reward transaction by coinbase transaction. and I'm thinking about the anonymous coinbase transaction. It seems bad to have no solution for that
This is pretty easy. Get your coinbase Tx to a fresh address and then use CoinJoin or some other mixer to move fund from there.

I mean a method with one step no further steps
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March 12, 2019, 09:38:27 PM
Merited by bones261 (2), ETFbitcoin (1)
 #9

What are you trying to do? Coinbase transactions are already anonymous because they don't have inputs. There's nothing there that links a coinbase transaction to anything else. The only linking that can possible happen occurs when you spend the output.

It is not possible to do a Coinjoin in a coinbase transaction. Coinbase transactions do not have any inputs.

Reza Nourmohammadi
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March 12, 2019, 10:54:00 PM
 #10

What are you trying to do? Coinbase transactions are already anonymous because they don't have inputs. There's nothing there that links a coinbase transaction to anything else. The only linking that can possible happen occurs when you spend the output.

It is not possible to do a Coinjoin in a coinbase transaction. Coinbase transactions do not have any inputs.

I'm trying to do this in a fully anonymous way. I want to hide sending coinbase transaction to the miner address
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March 12, 2019, 10:58:46 PM
 #11

I'm trying to do this in a fully anonymous way. I want to hide sending coinbase transaction to the miner address
Your question still does not make any sense. What part of the coinbase transaction are you trying to hide?

If you are trying to hide the address which received the newly generated Bitcoin, you can't do that. However, you can just make a completely new address (which you should be doing for every incoming transaction anyways) and use that for the output of the coinbase transaction.

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March 12, 2019, 11:06:11 PM
 #12

I'm trying to do this in a fully anonymous way. I want to hide sending coinbase transaction to the miner address
Wait, Are you sending bitcoin from Coinbase to Cloud mining? Can you clarify this "I want to hide sending coinbase transaction to the miner address"?

Or you are talking about the transaction from mining pool to Coinbase?

Just want to clarify because most of the Cloud mining sites are scam.

If you want to become fully anonymous you must use some 3rd party service that already mentions above(@100bitcoin)

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March 12, 2019, 11:18:08 PM
 #13

You can not turn a mined block into something transparent. Fade with him from the blockchain. A minted block needs to go to an address. If you want to make it difficult to trace, this is possible, but only after the address receives the bitcoins.

The address will not have your name, nor your photo stamped. But there has to be a valid address.

Maybe you're talking about addresses that are identifiable by the explorers? examples:

This block was mined by an unknown source: https://www.blockchain.com/en/btc/block/00000000000000000002fba2f1a95c1c096e7777ed6aa6939e221eae7f731918

This block was mined by an F2Pool source:
https://www.blockchain.com/en/btc/block/0000000000000000000f14979a45ef8921dc6f1bda404a8c14d57c909d247006


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March 13, 2019, 04:02:13 AM
 #14

I'm trying to do this in a fully anonymous way. I want to hide sending coinbase transaction to the miner address

It's impossible since receiving/miner address of coinbase transaction is fully public and Bitcoin don't have stealth address like Monero/ZCash.

The only way to anonymize coins you have are by using CoinJoin transaction or bitcoin mixing service. Make sure OP_RETURN on coinbase transaction don't give any information which can leak your identity/activity and use secure connection.

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