P2SH Pubkey

p2sh_pubkey.go

package main

import (
	"encoding/hex"
	"fmt"

	"github.com/btcsuite/btcutil"
	. "github.com/btcsuite/btcd/txscript"
)

func main() {
	// Using pubkey and signature from redeeming tx 32c28bc00a42aad56388389299de4adce429c549c8d70200692063be5506d5d1:0
	// which references tx e5779b9e78f9650debc2893fd9636d827b26b4ddfa6a8172fe8708c924f5c39d:0
	pubKeyHex := "048b65a0e6bb200e6dac05e74281b1ab9a41e80006d6b12d8521e09981da97dd96ac72d24d1a7ded9493a9fc20fdb4a714808f0b680f1f1d93527748b5e3f629ff"
	pubKey, _ := hex.DecodeString(pubKeyHex)
	sigHex := "30440220717655c3f0dad0b527275d99cb6831cf3efab9a75db8e14ca10f1804d3ccaeab02203414de200eabc6b9fada87a1a222f91a7ae7361542c6c91e06791e182c3cf0ce01"
	sig, _ := hex.DecodeString(sigHex)

	// 1) Generate the serialized pay script
	payScript, _ := NewScriptBuilder().AddData(pubKey).AddOp(OP_CHECKSIG).Script()
	payScriptDisasm, _ := DisasmString(payScript)
	fmt.Printf("payScript hex: %x\npayScript asm: %s\n", payScript, payScriptDisasm)

	// 2) Calculate the hash160 to obtain the script hash
	payScriptHash := btcutil.Hash160(payScript)
	fmt.Printf("payScript hash: %x\n", payScriptHash)

	// 3) Create the spending transaction's output script
	outScript, _ := NewScriptBuilder().AddOp(OP_HASH160).AddData(payScriptHash).AddOp(OP_EQUAL).Script()
	outScriptDisasm, _ := DisasmString(outScript)
	fmt.Printf("outScript hex: %x\noutScript asm: %s\n", outScript, outScriptDisasm)

	// 4) Create the redeeming transaction's input script
	inScript, _ := NewScriptBuilder().AddData(sig).AddData(payScript).Script()
	inScriptDisasm, _ := DisasmString(inScript)
	fmt.Printf("inScript hex: %x\ninScript asm: %s\n", inScript, inScriptDisasm)
}


Output:

payScript hex: 41048b65a0e6bb200e6dac05e74281b1ab9a41e80006d6b12d8521e09981da97dd96ac72d24d1a7ded9493a9fc20fdb4a714808f0b680f1f1d93527748b5e3f629ffac
payScript asm: 048b65a0e6bb200e6dac05e74281b1ab9a41e80006d6b12d8521e09981da97dd96ac72d24d1a7ded9493a9fc20fdb4a714808f0b680f1f1d93527748b5e3f629ff OP_CHECKSIG
payScript hash: da6e6a632d96dc5530d7b3c9f3017725d023093e
outScript hex: a914da6e6a632d96dc5530d7b3c9f3017725d023093e87
outScript asm: OP_HASH160 da6e6a632d96dc5530d7b3c9f3017725d023093e OP_EQUAL
inScript hex: 4730440220717655c3f0dad0b527275d99cb6831cf3efab9a75db8e14ca10f1804d3ccaeab02203414de200eabc6b9fada87a1a222f91a7ae7361542c6c91e06791e182c3cf0ce014341048b65a0e6bb200e6dac05e74281b1ab9a41e80006d6b12d8521e09981da97dd96ac72d24d1a7ded9493a9fc20fdb4a714808f0b680f1f1d93527748b5e3f629ffac
inScript asm: 30440220717655c3f0dad0b527275d99cb6831cf3efab9a75db8e14ca10f1804d3ccaeab02203414de200eabc6b9fada87a1a222f91a7ae7361542c6c91e06791e182c3cf0ce01 41048b65a0e6bb200e6dac05e74281b1ab9a41e80006d6b12d8521e09981da97dd96ac72d24d1a7ded9493a9fc20fdb4a714808f0b680f1f1d93527748b5e3f629ffac