Ethereum: Convert bech32 Bitcoin address to legacy

Bech32 Bitcoin address conversion to inheritance format using Web3.js

When working with Bitcoin, it is not uncommon for developers and users to switch between different formats. One such transformation is from the new Bech32 Bitcoin address format, which Ethereum Blockchain (Bech32) used for its inherited resemblance to Segwit Bitcoin address format. In this article, we will study how you can make this conversion using the popular JavaScript library web3.

Background

Before diving into the conversion process, we will quickly review the differences between Bech32 and Segwit addresses:

* Bech32: A two -piece address format that combines a hexadecimal key (public key) with a tag (version). It is used by Bitcoin Core wallets and many other applications.

* Segwit: Improvement in Bech32 format that divides data into smaller pieces called “tags” and adds support to multiple signatures in one block.

Bech32 Converting to inherited Segwit addresses

To convert the local Bech32 Bitcoin address to the inherited Segwit format, you will need to follow these steps:

• Remove the public key (hex string): Find the first 34 characters hexadecimal representation at your Bech32 address. It will be used as a public key to the new address.

• Calculate the block number and time stamp:

  Use the Web3.Js `eblocknumber and ‘eth_timitamp “to obtain the current block number and time stamp accordingly. These values ​​can be obtained using a network service provider such as infura or local blockchain API (such as Bitcoin core purse).

3
Create a new Segwit Address: Create a new Segwit address using the following format: () (<...>)

Here are some code samples to start:

JavaScript

Const web3 = ask (‘web3’);

Const Web3 = New Web3 (New Web3.Providers.httpprovider (‘

// Remove public key (Hex string) from Bech32 address

Const Bech32Address = ‘12345678901234567890ABCDEF’;

Const publkey = Web3.eth.Accounts.Fromrawaddress (Bech32Address, 0);

// Calculate the block number and time stamp

Const blocknumber = Web3.eth.Blocknumber;

CONST TIMESTAMP = Web3.eth.Testamp ();

// Create a new Segwit address

Const Segwitaddress = $ {blocknumber} $ {Timestamp} $ {publkey.Tostring (16)} ($ {1}) ($}) ($}) ($ {3}) ($ {4}) ($ {5} ) ($ {6}) ($ {7});

Console.log (Segwitaddress);

`

Note: 1,2, 3, …,7 Segwit address contains locations for additional signatures that can be created using an ethereum wallet or separate service. Make sure you replace these locations with actual values.

This fragment of code shows how to get a public key from the Bech32 address, calculate the block number and time stamp, create a new Segwit address and print the result. Following this process, you can successfully convert local Bech32 Bitcoin addresses in Legacy Segwit formats using Web3.

Additional tips:

• When working with Bitcoin, it is important to remember that some services may require additional setup or configuration to use Bech32 addresses.

• Ethereum blockchain has a limited number of blocks per second (around 15), which can affect performance. You may need to customize the code accordingly.

• Always consult the official web3.For documentation and other reliable sources to get updated information on the latest changes and best practices.

Following this article, you should now be able to convert Bech32 Bitcoin addresses to the inherited segwit formats using Web3.js. If you have any other questions or need additional help, be sure to ask!

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