Method and System for Tuning Blockchain Scalability, Decentralization, and Security for Fast and Low-Cost Payment and Transaction Processing

A method for sharing data between blockchains in a multi-chain network comprising:

• receiving a first plurality of account addresses associated with first and second blockchains and an account state for each account associated with the first plurality of account addresses;
• generating a first hash tree comprising a mapping between the first plurality of account addresses and the account states, defining a world state trie;
• generating a root hash of the world state trie;
• receiving a first plurality of transactions associated with the first and second blockchains;
• generating a second hash tree comprising the first plurality of transactions, defining a transactions trie;
• and
• generating a root hash of the transactions trie;
• wherein the root hash of both of the world state trie and the transactions trie is recorded to each block of the first and second blockchains;
• wherein at least a portion of both of the world state trie and the transactions trie are accessible by the first and second blockchains;
• and
• wherein the first blockchain has a parameter difference from the second blockchain selected from the group consisting of block generation time, transaction throughput, transaction latency, stale block rate, block propagation delay and consensus algorithm used.

A method for sharing data between blockchains in a multi-chain network comprising:

• receiving a first plurality of account addresses associated with first and second blockchains and an account state for each account associated with the first plurality of account addresses;
• generating a first hash tree comprising a mapping between the first plurality of account addresses and the account states, defining a world state trie;
• generating a root hash of the world state trie;
• receiving a first plurality of transactions associated with the first and second blockchains;
• generating a second hash tree comprising the first plurality of transactions, defining a transactions trie;
• and
• generating a root hash of the transactions trie;
• wherein the root hash of both of the world state trie and the transactions trie is recorded to each block of the first and second blockchains;
• wherein the second blockchain is relatively decentralized compared to the first blockchain;
• and
• wherein the entirety of at least one of the state trie and the transactions trie is accessible by the first and second blockchains.