Yes, my friend, Bitcoin Txid's (Transaction IDs) are generated using the SHA-256 (Secure Hash Algorithm 256-bit) hashing function. In the Bitcoin network, transaction data is first processed and hashed using SHA-256 to generate a unique Txid that identifies the transaction on the network.

SHA-256 is a widely used cryptographic hashing function that is known for its strength and security, and is also used in other applications besides Bitcoin. By using SHA-256 to generate Txids, the Bitcoin network ensures that transaction data is secure, tamper-proof, and easily identifiable, even in the context of a decentralized and distributed ledger system.

Overall, the use of SHA-256 in the generation of Txids is a critical part of the Bitcoin protocol, enabling the network to maintain the integrity, privacy, and security of all transaction data on the network, and helping to build a more transparent and robust financial system that benefits everyone.