Data backups using multiple blockchains

A computer system that cryptographically proves a data backup to multiple blockchain networks, comprising:

• a hardware processor;
• and
• a memory storing instructions that, when executed by the hardware processor, perform operations comprising:
• recording an electronic data to a first blockchain network of a set of multiple blockchain networks by sending a first write request;
• selecting a second blockchain network of the set of multiple networks based on an evaluation of a predetermined set of network parameters, wherein the second blockchain network is different from the first blockchain network;
• recording the electronic data to a second blockchain network by sending a second write request;
• receiving a confirmation confirming the recording of the electronic data to the second blockchain network;
• using an electronic representation of a hashing algorithm, generating a cryptographic proof of the recording of the electronic data to the second blockchain network;
• and
• recording the cryptographic proof, of the recording of the electronic data to the second blockchain network, to the first blockchain network by sending a third write request.

A memory device storing instructions that, when executed by a hardware processor, perform operations that cryptographically prove a blockchain data backup to multiple blockchain networks, the operations comprising:

• recording an electronic data to a first blockchain network of a set of multiple blockchain networks by sending a first write request;
• selecting a second blockchain network of the set of multiple networks based on an evaluation of a predetermined set of network parameters, wherein the second blockchain network is different from the first blockchain network;
• recording the electronic data to a second blockchain network by sending a second write request;
• receiving a confirmation confirming the recording of the electronic data to the second blockchain network;
• using an electronic representation of a hashing algorithm, generating a cryptographic proof of the recording of the electronic data to the second blockchain network;
• and
• recording the cryptographic proof, of the recording of the electronic data to the second blockchain network, to the first blockchain network by sending a third write request.