Ethereum: How do you get the OP_HASH160 value from a bitcoin address?

Understanding of Ethereum on_hash160 Value and Bitcoin Addresses

If you try to sign a coinbase transaction with the given hash, you will probably encounter an unknown Mistake. This article is intended to clarify how the value on_hash160 is obtained from a bitcoin address.

Understand Hash Functions

Before you immerse yourself in this topic, it is important to understand hash functions in cryptocurrency transactions. A hash function is a disposable process that converts data or each size into a string know as hash with a firm length. In Ethereum, The Value On_hash160 is part of a larger transaction signature.

The most frequently used haash function on the ethereum blockchain is the keccak-256 hash function. This is how it works:

• Keccak-256 hash function

  

  : This algorithm takes input data (in this case a bitcoin address) and generates A 20-byte hexadecimal sequence as an output.

• Keyed-Hashing for News Authentication (K-HMAC)

  : The Value On_hash160 is the result of the use of keccak-256 to the bitcoin address in a Certain Order.

Create the Value On_hash160 From a Bitcoin Address

To create the value on_hash160, you must follow the following steps:

• Get the Bitcoin Address : Find the Bitcoin Address of your Ethereum Letter Bag.

• Format The Bitcoin Address : Convert your bitcoin address to bytes in the format, which is required by the keccak-256-haash function:

* A byte (32 bit) is a show “0x01”, 0x02, …,0x5e.

• use keccak-256 hash function : use a library or implement the keccak-256 algorithm on your platform to generate the 20-byte hexadecimal string.

Here is an Example With JavaScript and the web3 Library (for Ethereum wallets):

`Javascript

Const Web3 = demands (‘Web3’);

// Get the Bitcoin Address

Const BitcoinAddress = ‘1A1A1 …’; // Replace With Your Actual Address

// Create A New Web3 Instance

Const provider = new web3.providers.httpprovider (‘

// Convert the Bitcoin Address to Bytes

Leave BitcoinBbytes = Buffer.from (BitcoinAddress, ‘Hex’);

// Apply Keccak-256 hash function

Const Ophash160 = Keccak256 (0x01 … bitcoinbytes);

console.log (Ophash160.tostring (‘hex’)); // Edition: 0x1234567890123456789

`

Coinbase Transaction Signature

To create a coin transaction signature, you must use the value on_hash160 Together with Other Parameters. The Right Format is:

`Json

{

"Transaction": {{

// Other Transaction Data ...

"Nonce": Number,

"GASPRICE": Number,

"Blockknumber": Number

},

"Signature": {{{{{

"Type": "Hash-16",

"Value": Ophash160

}

}

Remember to replace your_project_id with your actual infura project -id.

ETHEREUM INCOMPATIBLE VERSIONS