One possible solution is to use the concept of the public and private keys we use for digital signing/encryption. You can use my public key/public SSN to make

One possible solution is to use the concept of the public and private keys we use for digital signing/encryption. You can use my public key/public SSN to make inquiries about me and check my credit history. But to open an account or take out a loan etc, you also need my private key, private SSN, which is not stored once the account modification is done. IMHO, this never going to happen, but seems like it could be a solution to these problems?