Yes, the hash is always reproducible given the same inputs, but you never specified this as a requirement in your question. Only that you want a unique identifi

Yes, the hash is always reproducible given the same inputs, but you never specified this as a requirement in your question. Only that you want a unique identifier. I don't know for what purpose you need these identifiers, but I have to wonder why you want to use an identifier that is going to change when the data changes. If it's going to be thrown in a relational database, this sounds like a nightmare.