P2WPKH

scriptPubkey(locking script) is called witness program in Segwit world.

Witness program for p2wpkh

witness program looks like

$ 0x0014{20-byte-key-hash}

version: 00

OP_PUSHBYTES_20: 14

data: 20 byte hash of pubkey

p2wpkh は witness program は必ず 20byte で HASH160(pubkey)

witness looks like

$ {signature}{pubkey}

script code

For P2WPKH witness program, the scriptCode is 0x1976a914{20-byte-pubkey-hash}88ac.