Recent Patents and Applications for Blockchain

by ALIBABA GROUP HOLDING LTD on April 18, 2019 at 12:00 pm

Implementations of the present specification include receiving first transaction information from a first node, wherein the first node is a computer node in the blockchain network, and wherein the first transaction information comprises a transaction payload, a first public key, and a signed […]

by KIKINIS DAN on April 18, 2019 at 12:00 pm

A multi-tiered blockchain database system which retains the desirable features of blockchain technology but reduces or eliminates its limitations. The system allows for a primary tier blockchain database that acts as a common linkage to a plurality of lower tier, regional databases with their own […]

by ALIBABA GROUP HOLDING LTD on April 18, 2019 at 12:00 pm

Implementations of the present specification include receiving, from a smart contract, and by a function controller executing within the blockchain network, a function call to execute a function, the function call including data for execution of the function, transmitting, by the function […]

by ALIBABA GROUP HOLDING LTD on April 18, 2019 at 12:00 pm

Implementations of the present disclosure include initializing a nonce table comprising a plurality of nonce slots, each nonce slot being associated with a nonce index and a status, and storing a respective nonce value; receiving a request for a nonce value from an application, and in response, […]

by AMERICAN EXPRESS TRAVEL RELATED SERVICES CO INC on April 18, 2019 at 12:00 pm

A balancing and control (B and C) system for API transactions is disclosed. The system may write a request confirmation and a request acknowledgement to a blockchain in response to an API request being transmitted from a consumer system to a provider system, with the request confirmation and the […]

by ALIBABA GROUP HOLDING LTD on April 18, 2019 at 12:00 pm

A computer-implemented method for detecting replay attack comprises: obtaining at least one candidate transaction for adding to a blockchain; verifying if an identification of the candidate transaction exists in an identification database, the identification database comprising a plurality of […]

by ALIBABA GROUP HOLDING LTD on April 18, 2019 at 12:00 pm

Implementations of the present disclosure include receiving, from a first account, a digitally signed copy of a plurality of notes, a commitment of a transaction amount of a transaction between the first account and a second account paid by at least a portion of the plurality of notes, a commitment […]

by ALIBABA GROUP HOLDING LTD on April 18, 2019 at 12:00 pm

A computer-implemented method for implementing native contract on blockchain comprises: obtaining combined bytecode associated with a blockchain contract, wherein the combined bytecode comprises an indicator representing a type of the blockchain contract; determining the type of the blockchain […]

by ALIBABA GROUP HOLDING LTD on April 18, 2019 at 12:00 pm

In a blockchain transaction acceleration system, receive a first transaction sent through a first node in a blockchain. At least one second transaction that is a duplicate of the first transaction is received in the blockchain transaction acceleration system, where the at least one second […]

by ALIBABA GROUP HOLDING LTD on April 18, 2019 at 12:00 pm

Implementations of the present disclosure include obtaining, by a computing system, a unified blockchain domain name (a UBCDN) message of a blockchain instance, wherein the UBCDN message includes a UBCDN of the blockchain instance, a digital signature of an owner of the UBCDN of the blockchain […]