Memo Program

An SPL program (MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr) that validates a UTF-8 string and records it in the transaction log. Memos attach human-readable notes to transactions—used for exchange deposit identification, compliance metadata, and transaction tagging. The memo must be signed by at least one account.