Cold Storage/Backup of private keys on VINYL records, could it work?

A little SHA512 hashed file with a library of private keys encrypted with AES and stored on a vinyl record, could that work? The scenario is a worst case one, where that is the only solution.

So I asked some techy steemians if that was possible and how would the procedure be and what would it cost?

Well, the cost is rather expensive all new, about $4000 all in all plus empty records. But if it really works, one could make it a business offering cold storage vinyl records for others around the world and by doing that break even an maybe even profit well.

So the theoretical solution I have got so far is this:

• First, you use some software to encrypt your file containing your important data.
• Second, you use steganography tools to embed the file into an audio clip.
• Third, you turn the audio clip into vinyl.
• Hide it in plain sight as the wall decoration or part of a small or large vinyl stack.

To extract the data back again

• hook the audio output of the vinyl player to your microphone/line input on the computer.
• Use software to record the audio.
• Use the same steganography tools to decode the file back.
• And then you can use the encryption program you used to decrypt your file and get access to all of your data.

Is there anyone else who has a solution or maybe the equipment needed to do it in on a recent video would be awesome.

Thanks for reading, and keep on steeming on!!