Fast sync blockchain system and method

A node comprising:

• a processor;
• and
• a computer-readable medium coupled to the processor, the computer-readable medium comprising code executable by the processor for implementing a method comprising:
• storing, in a data storage, sets of keys and data values associated with keys of the sets of keys, the data values being data from blocks in a blockchain;
• performing a validation process for the blockchain, wherein the validation process includes for one or more blocks in the blockchain:
• identifying a set of keys associated with the block;
• retrieving data values associated the identified keys from the data storage;
• storing the retrieved data values in a volatile memory;
• and
• validating the block using the data values in the volatile memory;
• and
• completing the validation of the blockchain.

A method comprising:

• receiving, by a provider computer, a blockchain data request message from a node;
• generating, by the provider computer, a blockchain data response message comprising a plurality of hint headers comprising sets of keys;
• and
• providing, by the provider computer, the blockchain data response message to the node, wherein the node uses the sets of keys in the plurality of hint headers to validate a blockchain.