A thing like this is made for the blockchain. Blockchain ensures no-alteration of contents. and requires validation by many distributed parties thus like financial data can stay unaltered. Also, it then is non-deletable; once that data cat is out of the data bag, you can't stop it.
In blockchains, all parties in the chain validate the checksum for the data set. If they all agree, then the data is declared valid. This prevents any one party from altering the data and passing it successfully, or for that matter, removing files from the data and censoring it.
Parties in a blockchain are people with servers that volunteer to handle the crypto computations needed by the chain. In financial blockchains, such people get a small fee for doing their part. In data-distribution blockchains, it may be unpaid volunteers devoted to sharing information or truths. If a chain accepts random volunteers, although some participants may be corrupt and try to defraud things, the existence of the other parties can expose any fraud attempt. So the blockchain can survive infiltration by criminals, and prevent fraud. A criminal cannot alter the original data set, but can add things, but then the chain has to branch and the one who added it is visible.
A thing like this is made for the blockchain. Blockchain ensures no-alteration of contents. and requires validation by many distributed parties thus like financial data can stay unaltered. Also, it then is non-deletable; once that data cat is out of the data bag, you can't stop it.
Which parties are validating this?
In blockchains, all parties in the chain validate the checksum for the data set. If they all agree, then the data is declared valid. This prevents any one party from altering the data and passing it successfully, or for that matter, removing files from the data and censoring it.
So who are the parties in this case?
Parties in a blockchain are people with servers that volunteer to handle the crypto computations needed by the chain. In financial blockchains, such people get a small fee for doing their part. In data-distribution blockchains, it may be unpaid volunteers devoted to sharing information or truths. If a chain accepts random volunteers, although some participants may be corrupt and try to defraud things, the existence of the other parties can expose any fraud attempt. So the blockchain can survive infiltration by criminals, and prevent fraud. A criminal cannot alter the original data set, but can add things, but then the chain has to branch and the one who added it is visible.