US 2020/0204352 A1 · METHOD AND SYSTEM FOR FACILITATING DATA TRANSFER BETWEEN BLOCKCHAINS

Abstract

Methods, systems, and techniques for facilitating data transfer between blockchains, Data is sent from a first blockchain to a second blockchain. The data includes lineage verification data that permits the second blockchain to verify a lineage of at least one block of the first blockchain; a proper subset of all non-header data stored using the at least one block; and validity verification data that permits the second blockchain to verify validity of the proper subset of all non-header data sent to the second blockchain from the first blockchain. The proper subset of non-header data may be a slice of state data of an application stored in the first blockchain. The second blockchain verifies the lineage and validity of the data it receives, and creates a new block having non-header data comprising the data it received.

Claims34

Dependent claims

A method for facilitating data transfer between blockchains, the method comprising:

(a) receiving a request from a second blockchain for a proper subset of all non-header application data stored using at least one block of a first blockchain, wherein the request comprises a starting block height of the first blockchain;
(b) determining a difference in the proper subset of all application data stored between a block of the first blockchain at the starting block height and a block of the first blockchain at a current block height;
and
(c) sending, from the first blockchain to the second blockchain:
(i) lineage verification data that permits the second blockchain to verify a lineage of at least one block of the first blockchain;
(ii) the difference in the proper subset of all application data;
and
(iii) validity verification data that permits the second blockchain to verify validity of the difference in the proper subset of all non-header data sent to the second blockchain from the first blockchain,
wherein the block of the first blockchain at the starting block height is higher than a genesis block of the first blockchain.

6 more elements

A method for facilitating data transfer between blockchains, the method comprising:

(a) sending a request to a first blockchain for a proper subset of all application data stored using at least one block of the first blockchain, wherein the request comprises a starting block height of the first blockchain;
(b) receiving, at a second blockchain from the first blockchain:
(i) lineage verification data that permits the second blockchain to verify a lineage of the at least one block of the first blockchain;
(ii) a difference in the proper subset of all application data stored between a block of the first blockchain starting at the starting block height and a block at a current block height of the first blockchain;
and
(iii) validity verification data that permits the second blockchain to verify validity of the difference in the proper subset of all application data sent to the second blockchain from the first blockchain;
(c) verifying lineage of the at least one block of the first blockchain using the lineage verification data;
(d) verifying validity of the difference in the proper subset of all application data using the validity verification data;
and
(e) adding a new block to the second blockchain, wherein the new block is used to store application data comprising the lineage verification data, the difference in the proper subset of all application data, and the validity verification data received from the first blockchain,
wherein the block of the first blockchain at the starting block height is higher than a genesis block of the first blockchain.

8 more elements

Dependencies are inferred from the claim text.

Method and system for facilitating data transfer between blockchains

Life of this patent

Method and system for facilitating data transfer between blockchains

Life of this patent

Abstract

Claims34