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1. 发明申请

WO2023073105A1 METHODS AND SYSTEMS FOR DISTRIBUTED BLOCKCHAIN FUNCTIONALITIES 审中-公开
公开(公告)号：WO2023073105A1
公开(公告)日：2023-05-04
申请号：PCT/EP2022/080084
申请日：2022-10-27
申请人： NCHAIN LICENSING AG
发明人： WRIGHT, Craig Steven
IPC分类号： H04L9/00 , G06F21/64
摘要： The present disclosure provides methods and systems for using a portion of data derived from a blockchain to identify and/or allocate a processing and/or storage resource. The data from which the portion of data is derived comprises an unspent transaction output (UTXO) and/or a transaction (Tx) containing a unspent transaction output. By using a portion of data to allocate the resource a relationship between the data, its associated information and the resource in which it is stored is maintained. The database can hold at least one of: a flag of the validity of the unspent transaction output (UTXO) and/or a transaction (Tx) containing an unspent transaction output; and information enabling the validity of an unspent transaction output and/or a transaction (Tx) containing an unspent transaction output to be determined, e.g. SPV information. Processing the data includes determining a key, wherein the key determines the allocated resource. The key can be hashed and the resulting hash determines the allocated resource. At least one of the data, the key, and the resulting hash comprises at least one of: an alphanumeric number; and a binary number, and said number is used to determine the allocated resource. A portion of the number is parsed to determine the allocated resource.

2. 发明申请

WO2023073066A1 METHODS AND SYSTEMS FOR DISTRIBUTED BLOCKCHAIN FUNCTIONALITIES 审中-公开
公开(公告)号：WO2023073066A1
公开(公告)日：2023-05-04
申请号：PCT/EP2022/080014
申请日：2022-10-26
申请人： NCHAIN LICENSING AG
发明人： WRIGHT, Craig Steven
IPC分类号： H04L9/00 , G06F21/64
摘要： Embodiments of the disclosure provide systems and associated methods for improving the performance of blockchain-implemented or related operations, and for providing novel architectures for blockchain networks. In particular, the system is suited for distributing blockchain-related operations across multiple processing resources. These include operations such as block and/or transaction validation, mining tasks such as Proof-of-Work calculations, identification and searching of blockchain-related data, and efficient load balancing across the multiple resources used for performance of such operations. In some embodiments, tasks relating to a given type of blockchain operation e.g. validation or mining are outsourced or delegated to one or more dedicated resources. In a preferred embodiment, the individual blockchain functionalities are separated out and performed by different resources which can be located anywhere in the world and/or controlled by non-related, trustless entities.

3. 发明申请

WO2023072955A1 METHODS AND SYSTEMS FOR DISTRIBUTED BLOCKCHAIN FUNCTIONALITIES 审中-公开
公开(公告)号：WO2023072955A1
公开(公告)日：2023-05-04
申请号：PCT/EP2022/079825
申请日：2022-10-25
申请人： NCHAIN LICENSING AG
发明人： WRIGHT, Craig Steven
IPC分类号： H04L9/00 , G06F21/64
摘要： The present disclosure provides methods and systems for distributed and/or parallel processing of data records, and in particular validation of blockchain transactions in a blockchain block. In a preferred embodiment, a distributed validation node is disclosed in which one or more transactions are allocated to a validating resource in a plurality of validating resources. The one or more transactions relates to a portion of a Merkle tree for the block, so that each validation resource is able to operate independently on verification of a subset of the block's transactions, each subset being based on a segment of the Merkle tree. The disclosure includes advantageous techniques for at least: allocation of tree segments to different validation resources, load balancing, download of the transactions to be validated, distributed UTXO pools, indexing schemes and prevention of double spend events.

4. 发明申请

WO2023031368A1 A COMPUTER IMPLEMENTED METHOD AND SYSTEM 审中-公开
公开(公告)号：WO2023031368A1
公开(公告)日：2023-03-09
申请号：PCT/EP2022/074396
申请日：2022-09-01
申请人： NCHAIN LICENSING AG
发明人： MEE, Andrew James , RAND, Ricky Charles , CLARK, Paul , WOODS, Alex , DAVIES, Jack Owen , ZHANG, Wei
IPC分类号： G06Q20/06 , G06Q20/02 , G06Q20/38 , G06Q20/12 , G06Q20/14
摘要： A computer-implemented method for tracking, on a blockchain, at least two clients interacting with an asset, wherein the blockchain comprises a set of transactions associated with the asset, and a set of transactions associated with each client. The asset tracking comprising receiving an asset interaction event request comprising data based on at least two clients associated with an asset interaction event and data indicative of the asset, generating an event transaction based on a reference to the set of transactions associated with the asset and references to the sets of transactions associated with the at least two clients, and submitting the event transaction to the blockchain.

5. 发明申请

WO2023016729A1 GENERATING DIGITAL SIGNATURE SHARES 审中-公开
公开(公告)号：WO2023016729A1
公开(公告)日：2023-02-16
申请号：PCT/EP2022/069249
申请日：2022-07-11
申请人： NCHAIN LICENSING AG
发明人： PETTIT, Michaella
IPC分类号： H04L9/08 , H04L9/32
摘要： A computer-implemented method of generating a respective signature share of a digital signature for signing a message, wherein the method is performed by a first participant of the group and comprises: obtaining at least the threshold number of respective participant indexes, wherein the obtained respective participant indexes comprises a first participant index associated with the first participant; generating a private key index, wherein the private key index is generated based on a hash of a combination of the obtained respective participant indexes; generating a second common private key of the first hierarchical key structure; and generating a first signature share of the digital signature.

6. 发明申请

WO2023001461A1 ENFORCING CONDITIONS ON BLOCKCHAIN TRANSACTIONS 审中-公开
公开(公告)号：WO2023001461A1
公开(公告)日：2023-01-26
申请号：PCT/EP2022/066649
申请日：2022-06-20
申请人： NCHAIN LICENSING AG
发明人： ZHANG, Wei
IPC分类号： H04L9/00 , H04L9/30 , H04L9/32 , G06Q20/06
摘要： A computer-implemented method of enforcing conditions on a second blockchain transaction using a first blockchain transaction, wherein a first one of the conditions is that, when a first unlocking script of the second transaction is executed alongside a first locking script of the first transaction, a representation of the second transaction is output to memory, wherein the representation is based on a plurality of fields of the second transaction and a first output of the first transaction, and wherein the method comprises: generating the first transaction, wherein the first transaction comprises a first output, wherein the first output comprises the first locking script, and wherein the first locking script comprises: a message sub-script; a signature sub-script; a public key corresponding to a private key; and a verification sub-script.

7. 发明申请

WO2023285053A1 BLOCKCHAIN BLOCKS & PROOF-OF-EXISTENCE 审中-公开
公开(公告)号：WO2023285053A1
公开(公告)日：2023-01-19
申请号：PCT/EP2022/066092
申请日：2022-06-14
申请人： NCHAIN LICENSING AG
发明人： DAVIES, Jack, Owen , PETTIT, Michaella , HOVE, Sigourney , WRIGHT, Craig, Steven
IPC分类号： H04L9/32 , H04L9/00 , G06Q20/40
摘要： A computer-implemented method of constructing a candidate block of a blockchain, wherein the method comprises: obtaining a set of blockchain transactions; and constructing the candidate block, wherein the candidate block comprises a current block header used to link the candidate block to a previous block of the blockchain, and wherein the current block header comprises i) a hash of the respective block header of the previous block, ii) a nonce value, such that when the current block header is hashed, the resulting hash of the current block header satisfies a predetermined difficulty target, and iii) the set of blockchain transactions.

8. 发明申请

WO2022258401A1 A COMPUTER IMPLEMENTED METHOD AND SYSTEM 审中-公开
公开(公告)号：WO2022258401A1
公开(公告)日：2022-12-15
申请号：PCT/EP2022/064476
申请日：2022-05-27
申请人： NCHAIN LICENSING AG
发明人： RAND, Ricky Charles
IPC分类号： G06F21/64 , G06Q20/36 , H04L9/32 , H04L9/00 , H04L9/40
摘要： The present disclosure relates to a computer implemented method for verifying a blockchain stored representation of a dataset. The method comprises the steps of obtaining a dataset reference to an on-chain dataset, the on-chain dataset being stored on the blockchain and comprising data carrying transactions, wherein each data carrying transaction comprises data indicative of an event stored in an off-chain dataset. The method includes traversing the on- chain dataset and for each data carrying transaction in the on-chain dataset: determining that the data indicative of an event in the off-chain data set is associated with an event in the off- chain dataset, and verifying that the on-chain dataset and the off-chain dataset correspond to each other.

9. 发明申请

WO2022238066A1 MULTI-PARTY BLOCKCHAIN ADDRESS SCHEME 审中-公开
公开(公告)号：WO2022238066A1
公开(公告)日：2022-11-17
申请号：PCT/EP2022/059595
申请日：2022-04-11
申请人： NCHAIN LICENSING AG
发明人： PAUNOIU, Alexandru , WRIGHT, Craig, Steven
IPC分类号： G06F21/64 , H04L9/00 , H04L9/32 , H04L9/3239 , H04L9/50
摘要： A method of generating a blockchain transaction, wherein each second party is associated with a public key and each public key is associated with an index, and wherein the method comprises: generating a transaction comprising a locking script comprising a shared hash value, the shared hash value comprising a sequence of hash values, each being a hash of one of the public keys and placed at a position corresponding to the respective index, and wherein the locking script is configured to require an unlocking script to comprise a target index, a target public key, and a target signature, extract the hash value from the shared hash value at a position corresponding to the target index, generate a hash of the target public key and require the generated hash value to match the extracted hash value, and verify that the target signature is a valid signature.

10. 发明申请

WO2022228799A1 NESTED THRESHOLD SIGNATURES 审中-公开
公开(公告)号：WO2022228799A1
公开(公告)日：2022-11-03
申请号：PCT/EP2022/058085
申请日：2022-03-28
申请人： NCHAIN LICENSING AG
发明人： PETTIT, Michaella
IPC分类号： H04L9/32
摘要： A computer-implemented method of requiring at least one of a sub-group of a group of participants to contribute to a threshold-optimal signature scheme, wherein the valid signature comprises a first signature component and a second signature component, wherein each participant has a respective private key share of a shared private key, a respective ephemeral private key share of a shared ephemeral private key, and the first signature component, wherein the shared private key can only be generated with at least a first threshold number of respective private key shares.

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