Ethereum: What is the script assembly and execution in P2TR spend (spend from Taproot)
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Ethereum: Understanding Script Assembly and Execution in P2TR Spend (Spend from Taproot)
Script Assembly and execution.
What is P2TR Spend?
P2TR Spend Involves Spending Bitcoins from a public address that was previously spent using Taproot (P2PKH). In other words, you are re-sailing the same bitcoins that were original This
Script Assembly for P2TR Spends
To execute a p2tr spend, we must first understand the script assembly process used by Ethereum’s ropsten testnet. The Key Components of An Ethereum Script Are:
- Input scripts
: these define how the input amount should be spent from.
- Output scripts :
Scripts:
Taproot Script Input
The original taproot transaction has an input script of Type scriptpubkey, which is a key-value pair representing the public address to be spent. This input script is used as the first input in our p2tr spend.
`Solidity
0x1 ... (Public Address)
Taproot Script Output
Taproot transaction has an output script that deserts how the amount should be sent. The scriptpubkeyfield of this output script contains the public address to which the re-spent bitcoins are being sent.
Solidity
0x1 ... (Public Address)
Script Assembly for P2TR
Now, let’s combine these two scripts to create a p2tr spend that re-sends the same taproot transaction. We’ll use solidity, a popular programming language for Ethereum smart contracts, to implement this Assembly.
“ Solidity
Pragma Solidity ^0.8.0;
Taprootspend {
// Input Script from Original Taproot Transaction
Address Public Owner;
// Function to Execute P2TR Spend
Function Executep2tr (Uint Amount) Public {
// Create a new input script for the re-spent bitcoins
Address Public RecipientAddress;
uint256 public outputamount = 0;
// Define the Output Script Using the Output Script of the Original Taproot Transaction
Function GettoutPutscript () Internal Returns (Address, Uint256) {
Return Address (0x1 …, Owner), Amount;
}
// Use the re-spent taproot transaction to calculate the Recipient Address and Amount
Address Public Neawaddress;
Uint256 Public Newamount = 0;
// Define a function
Function GetnewinPuts () Internal Returns (Address [] Memory, Uint256) {
// Calculate the Recipient Address Using the Public Address from the Original Taproot Transaction
address [] memory recipients = newdress;
// Calculate the Output Amount in Wei
uint256 [] Memory outputs = newuint256 (recipients.