Conversion from Base64 PSBT transaction to gross hex/serialized **

In this article, we will explore the process of transforming a PSBT transaction (programming script binters) codified in gross and serialized format (HEX). We will use Bitcoin Core CLI as a set of tool.

Premise

• Familiarization with the basic elements of Bitcoin and its blockchain architecture.

• Understanding PSBT and Base64 coding standards.

Step 1: Convert PSBT transaction64 to raw

In order to convert a basic coded PSBT transaction64, we must use the PSBT command line instrument offered by Bitcoin Core. Theconvertopsbt command is used for this purpose. Here’s an example of how to use it:

`Bash

Bitcoincore-Cli convertopsBt

Replacewith the BASE coded PSBT transaction, as seen in the basic output.

Step 2: Convert the gross transaction into serialized hex

After transforming the RAW PSBT transaction, we must convert it into its serialized format (HEX). We can again use a tool likePSBT or use the library "cointool" for this purpose.

Here's an example of how to convert a gross Bitcoin Core Cli:

Bash

Bitcoincore-Cli Cointool -t raw2hex

Replacewith the real gross transaction, as seen in the basic output of bitcoin.

Step 3: Compare and check

To ensure that your conversion process is correct, we can compare the basic coded PSBT transaction 64 with its serialized equivalent (HEX):

Bash

Bitcoincore-cli Cointool -T HEX2raw

This command will produce a gross transaction from the original Base64 coded transaction.

Example example

Here is an example of exit for the above steps using a fictional PSBT transaction:

Plaintext

PSBT transaction coded basic64

PSBT (“1.3.0”, {

“Codification”: “Base64”,

“Scriptsig”: [“010101000000000000000000000000000”],

“Blocknaber”: “100000”,

“Transactionidex”: “500000”

})

`

Conversion code

Here is a simple Python script to convert from Base64 to gross and then serialized hex:

Python

Import Base64

Import Json

Def Base64_to_tsb (Base64_Transction):

Use PSBT command line tool provided by Bitcoin Core

output = bitcoincore-cli convertopsBt (Base64_transction)

Returns Json.Loads (output)

def tsb_to_raw (tsb_json, coding = "base64"):

Use library cointool to convert from gross to hex

If the coding == "raw":

Return Cointool (tsb_json, "hex2raw")

Elif Encoding == "hex":

Return Cointool (tsb_json, "hex2raw")

Example of use

Base64_transacti = "PSBT (\" 1.3.0 \ ", {\" coding \ ":" Base64 \ "," scriptsig \ ": [\" 010100000000000000000000000 \ "," Blocknaber \ ":" 100000 \ " , \ "transactionidex \": \ "500000 \"}) "

tsb_json = base64_to_tsb (Base64_transction)

raw_hex = tsb_to_raw (tsb_json, coding = "hex")

Print (raw_hex)

Exit:

In this example of code, we first convert the Base64 coded PSBT transaction into a Python dictionary usingJson.loads ()`. Then we use the “cointool” library to convert it from raw to hex. The result is printed as gross and serialized transactions (HEX).

Conclusion

Conversion between bases of bases64 and gross/serialized (hex) into the Bitcoin nucleus involves two stages: first, transforming the PSBT transaction from Base64 to RAW; Secondly, transforming the gross transaction into its serialized equivalent (HEX). This process can be performed using various tools and libraries provided by the Bitcoin Core CLI.