Locking blockchain blocks for data security for finite length blockchains

A non-volatile computer tangible medium containing instructions for utilizing a distributed network to generate a blockchain having a finite number of blockchain blocks secured in a loop with a locking blockchain block comprising:

• creating a blockchain on a distributed network having a genesis blockchain block and a terminating blockchain block that ends the blockchain;
• creating a blockchain lock block that includes three hash digests:
• a hash digest of the genesis blockchain block, a hash digest of the terminating blockchain block, and a hash digest of the blockchain lock block that includes as data the hash digest from the genesis blockchain block and the hash digest from the terminating blockchain block, thereby cryptographically linking the genesis blockchain block to the terminating blockchain block through the blockchain lock block;
• and
• appending the blockchain lock block to the blockchain after the terminating blockchain block and storing it on the distributed network.