TX SCRIPTHASH

• pay to script hash; The Scriptpubkey is the puzzle set to a transaction in order for it to be solved and the script sig is the solution to the puzzle that allows it to be spent.

• Historically the Scriptpubkey was named so as it contained the public key or address to be spent from – i.e. the address the transaction was locked to.
The scriptsig was called so due to its need to contain the signature – i.e. the private key of the address that wants to spend and to which the address in the scriptpubkey was locked to.
• https://www.cryptocompare.com/coins/guides/bitcoin-transactions-scriptsig-and-scriptpubkey-locking-and-unlocking-a-transaction/