WO2019151629A1 - Système de chaînes de blocs comprenant une structure à chaînes de blocs multiples, et procédé de formation de chaîne de blocs dans un système de chaînes de blocs - Google Patents

Système de chaînes de blocs comprenant une structure à chaînes de blocs multiples, et procédé de formation de chaîne de blocs dans un système de chaînes de blocs Download PDF

Info

Publication number
WO2019151629A1
WO2019151629A1 PCT/KR2018/014627 KR2018014627W WO2019151629A1 WO 2019151629 A1 WO2019151629 A1 WO 2019151629A1 KR 2018014627 W KR2018014627 W KR 2018014627W WO 2019151629 A1 WO2019151629 A1 WO 2019151629A1
Authority
WO
WIPO (PCT)
Prior art keywords
block
blockchain
block chain
zone
mother
Prior art date
Application number
PCT/KR2018/014627
Other languages
English (en)
Korean (ko)
Inventor
지송학
Original Assignee
지송학
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 지송학 filed Critical 지송학
Publication of WO2019151629A1 publication Critical patent/WO2019151629A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H04L67/1044—Group management mechanisms 
    • H04L67/1051—Group master selection mechanisms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H04L67/1059—Inter-group management mechanisms, e.g. splitting, merging or interconnection of groups

Definitions

  • the present invention relates to a blockchain system comprising a multiple blockchain structure and a blockchain forming method in the blockchain system.
  • TPS transaction per second
  • the transaction processing speed is determined by the amount of transactions included in the block in the blockchain and the block generation speed. The faster you create a block with more transactions, the faster the transaction will be processed.
  • the technical problem to be solved by the present invention is to provide a block chain system including a multi-block chain structure capable of parallel processing a transaction in order to improve the transaction processing speed that is a problem in the existing single block chain structure.
  • Another technical problem to be solved by the present invention is to provide a method for forming a blockchain in a blockchain system including a multiblockchain structure capable of parallelizing transactions in order to improve transaction processing speed, which is a problem in the existing single blockchain structure. To provide.
  • a blockchain system including a multiblockchain structure according to an embodiment of the present invention for solving the above problems is a blockchain system including a plurality of data blocks forming a multiblockchain structure, which is connected from an original block.
  • a mother block chain comprising a plurality of blocks, and first and second block chains branched from a mother block located at the end of the mother block chain, wherein the mother block is the first block of the first block chain.
  • the first block connected to includes block information including a hash value of the mother block
  • the second block connected to the mother block while being the first block of the second block chain includes block information including a hash value of the mother block.
  • the first blockchain and the second blockchain may branch in the mother blockchain.
  • blocks generated in a first zone may be connected to the first block chain, and blocks generated in a second zone different from the first zone may be connected to the second block chain.
  • blocks having a unique number of blockchains corresponding to the first zone are generated and connected to the first blockchain, and blockchains corresponding to the second zone are connected to the second blockchain. Blocks with a unique number may be generated and connected.
  • the newly added node is the zone or node in which the average transaction throughput is low among the first zone and the second zone. Can be distributed to pre-designated areas.
  • the first blockchain branches or the second blockchain. This can branch.
  • the first blockchain and the second blockchain may be merged back into one blockchain so that subsequent blocks may be connected.
  • a mother to create a mother blockchain comprising a plurality of blocks connected from the first block Block chain generation step, the first branch step of branching the first block chain and the second block chain from the mother block located at the end of the mother block chain when more than a predetermined number of transactions to be processed per second in the block chain system And when the amount of transactions in the first zone including the first block chain or the second zone including the second block chain increases to be greater than or equal to a predetermined number of transactions to be processed per second.
  • a first block connected to the mother block while being a block of includes block information including a hash value of the mother block, and a second block connected to the mother block while being the first block of the second block chain is a hash of the mother block.
  • blocks generated in a first zone may be connected to the first block chain, and blocks generated in a second zone different from the first zone may be connected to the second block chain.
  • blocks having a unique number of blockchains corresponding to the first zone are generated and connected to the first blockchain, and blockchains corresponding to the second zone are connected to the second blockchain. Blocks with a unique number may be generated and connected.
  • the newly added node is the zone or node in which the average transaction throughput is low among the first zone and the second zone. Can be distributed to pre-designated areas.
  • the first blockchain and the second blockchain may further comprise a blockchain joining step in which the subsequent blocks are joined by joining again into one blockchain. .
  • the blockchain since the blockchain may be divided into two blocks in the mother block according to the amount of transactions per zone, or the two branched blockchains may be combined into one blockchain, the blockchain structure may be appropriately adjusted according to the amount of transactions. Can be configured.
  • FIG. 1 is a diagram illustrating a distributed processing system using a blockchain to which the technical spirit of the present invention can be applied.
  • FIGS. 2 and 3 are block diagrams illustrating the connection of blocks used in a blockchain system.
  • FIG. 4 is a diagram illustrating a multiple block chain structure according to an embodiment of the present invention.
  • FIG. 5 is a diagram illustrating an example in which the blockchain branches and the blockchain extends for each zone.
  • FIG. 6 is a diagram illustrating an example in which a blockchain branches to form a new zone.
  • FIG. 7 is a diagram illustrating an example in which branched blockchains are merged into one blockchain structure.
  • FIG. 8 is a diagram illustrating an example in which a block stores block information including a mother block hash value.
  • FIG. 9 is a flowchart sequentially illustrating a method for forming a block chain in a block chain system including a multiple block chain structure according to an embodiment of the present invention.
  • FIG. 1 is a diagram illustrating a distributed processing system using a blockchain to which the technical spirit of the present invention can be applied.
  • a distributed processing system 10 using a blockchain is a distributed network system including a plurality of nodes 11 to 17.
  • the nodes 11 ⁇ 17 constituting the distributed network 10 may be electronic devices having computing capability such as computers, mobile terminals, and dedicated electronic devices.
  • the distributed network 10 may store and refer to information commonly known to all participating nodes in a connection bundle of blocks called block chains.
  • the nodes 11 to 17 may be divided into a full node capable of communicating with each other, a full node responsible for storing, managing, and propagating a block chain, and a simple node that can simply participate in a transaction. .
  • a node when referring to a node without further description, it often refers to a complete node that participates in a distributed network and performs an operation of generating, storing, or verifying a blockchain, but is not limited thereto.
  • Each block connected to the blockchain includes a transaction history, or transactions, within a certain period.
  • the nodes can manage transactions by creating, storing or verifying a blockchain according to their respective roles.
  • the transaction may represent various types of transactions.
  • the transaction may correspond to a financial transaction to indicate the ownership state of the virtual currency and its variation.
  • the transaction may correspond to a physical transaction to indicate the state of ownership of the object and its variation.
  • Nodes performing transactions in the distributed network 10 may have a private key and a public key pair with respective cryptographic associations.
  • FIGS. 2 and 3 are block diagrams illustrating the connection of blocks used in a blockchain system.
  • the block chain 20 is a kind of distributed database of one or more blocks 210, 220, and 230 sequentially connected.
  • the blockchain 20 is used to store and manage transaction details of users in the blockchain system, and each node participating in the network of the blockchain system generates a block and connects it to the blockchain 200.
  • 2 illustrates a limited number of blocks 210, 220, and 230, but the number of blocks that may be included in the block chain is not limited thereto.
  • Each block included in the block chain 20 may be configured to include a block header 211 and a block body 213.
  • the block header 211 may include a hash value of the previous block 220 to indicate a connection relationship between each block. In the process of verifying that the blockchain 20 is valid, a connection relationship in the block header 211 is used.
  • the block body 213 may include data stored and managed in the block 210, for example, a transaction list or a transaction chain.
  • the block header 211 may include a hash 2112 and a nonce 2114 of a previous block.
  • the block header 211 may include a root 2115 representing a hash of a transaction list in the block.
  • the blockchain 20 may include one or more blocks that are connected.
  • the one or more blocks are concatenated based on the block hash value.
  • the hash value 2112 of the previous block included in the block header 211 is the same as the current hash 2213 included in the previous block 220 as a hash value for the previous block 220.
  • the one or more blocks are concatenated concatenated by the hash value of the previous block in each block header. Nodes participating in the distributed network verify the validity of the block based on the hash value of the previous block included in the one or more blocks, thereby preventing the malicious single node from forging or tampering with the contents of the already created block. Do.
  • the block body 213 may include a transaction list 2131.
  • the transaction list 2131 is a list of blockchain based transactions.
  • the transaction list 2131 may include a record of financial transactions made in the blockchain-based financial system.
  • the transaction list 2131 may be expressed in the form of a tree.
  • the transaction list 2131 records the amount of money transmitted from the user A to the user B in the form of a list, and the storage length in the block is the length of the transaction included in the current block. It can be increased or decreased based on the number.
  • the block 210 may include other information 2116 other than the information included in the block header 211 and the block body 213.
  • Blocks containing a list of transactions are shared across the network so that all participants can verify them.
  • the process of branching from one blockchain to two blockchains repeatedly occurs under certain conditions, and the transaction processing speed of the entire blockchain is maintained while maintaining the entire blockchain.
  • the whole node is divided into two zones, each block generation node is selected among the nodes in the divided zones, and blocks are generated for each zone and connected to the blockchain, thereby creating two blocks at a time. It can be created and connected to the blockchain, which can double transaction processing speed.
  • all nodes are divided and distributed according to zones in consideration of regions, transaction amounts, types of processing history, and the like, and block generation nodes can be selected in each zone to form a multi-blockchain structure.
  • Nodes divided by zones share their respective blockchains branched from one blockchain. According to this structure, the entire blockchain system can form a multiblockchain structure. Blocks created in one zone are connected to the blockchain of nodes in the zone to which the node belongs and continue to extend the blockchain structure.
  • FIG. 4 is a diagram illustrating a multiple block chain structure according to an embodiment of the present invention.
  • the multi-blockchain structure is configured to include a mother blockchain 100, a first blockchain 200, and a second blockchain 300.
  • FIG. 4 illustrates a part of the entire block chain structure, and is a view for explaining the multiple block chain structure according to the embodiment of the present invention.
  • the mother block chain 100 includes a plurality of blocks connected from the first block 101.
  • the first block chain 200 and the second block chain 300 branch from the mother block 102 located at the end of the mother block chain 100 so that subsequent blocks may be formed in the first block chain 200 or the first block chain. It is connected in series to the two block chain 300 to form a multi-block chain structure.
  • the first block of the first block chain 200 is connected to the mother block 102, the first block of the first block chain 200 will be defined as the first block 201. Since the first block 201 is connected to the mother block 102 while including block information including the hash value of the mother block 102, the first block 201 may continue to form a block chain structure.
  • first block of the second block chain 300 is also connected to the mother block 102, and the first block of the second block chain 300 will be defined as a second block 301.
  • the second block 301 is connected to the mother block 102 while including block information including the hash value of the mother block 102, thereby continuing to form the block chain structure.
  • the blockchain branches in the corresponding zone, and the blockchain branches according to the amount of transactions for each zone, thereby making Zones can be formed.
  • FIG. 5 is a diagram illustrating an example in which the blockchain branches and the blockchain extends for each zone.
  • the first block chain 200 is a block chain to which blocks generated in the A region in FIG. 5 are connected
  • the second block chain 300 is a block chain to which blocks generated in the B region in FIG. 5 are connected.
  • the blockchain When the blockchain is initially formed, it is formed in a single chain structure like the existing blockchain. After that, if the number of nodes and the number of transactions in the blockchain system are gradually increased to achieve a predetermined level of transaction processing rate, the entire nodes are divided into two zones, and then the transactions occurring in each zone in each zone. Only collect them and generate blocks at one node in the region, and connect the generated blocks to the blockchain corresponding to the region to form a multi-block chain structure.
  • the block created in this way has a blockchain unique number representing a zone of partitioned nodes. That is, as shown in FIG. 5, blocks generated in the A zone are generated to include # 29384 (which is an exemplary unique number), which is a unique number of the A zone, and according to the unique number of the A zone, It will be connected to the block chain 200.
  • # 29384 which is an exemplary unique number
  • blocks generated in zone B are generated to include # 94837, which is a unique number of zone B (this is an exemplary unique number), and are connected to the second block chain 300 along the unique number of zone B. do.
  • the first block chain 200 and the second block chain 300 are generated by branching from the mother block 102
  • the first block 201 of the first block chain 200 and The second block 301 of the second block chain 300 is connected to one block (ie, the mother block 102) of the front end, and the first block 201 and the second block 301 are '
  • all of the block information including the hash value of the mother block 102 is equally connected to the mother block 102.
  • a consensus algorithm in a multi-blockchain system is one unconditionally in one blockchain. You must use a consensus algorithm that is made by consensus only blocks of. In other words, do not create a double block.
  • the block chain branched into the first block chain 200 and the second block chain 300 will also generate and connect their blocks based on nodes in the region to which the block chain belongs.
  • the average transaction throughput is calculated to allocate new nodes to the regions with lower transaction throughput, so that the blockchains divided by zones can have relatively even transaction throughput, Depending on the location, it may be allocated to a predetermined area.
  • FIG. 6 is a diagram illustrating an example in which a blockchain branches to form a new zone.
  • transaction throughput in the mother blockchain 100 is increased in the entire blockchain to branch to the first blockchain 200 and the second blockchain 300, and the second blockchain 300 is The case of branching back to the third block chain 400 and the fourth block chain 500 is illustrated.
  • the first block chain 200 is a block chain to which blocks generated in the A region in FIG. 6 are connected
  • the second block chain 300 is a block chain to which blocks generated in the B region in FIG. 6 are connected.
  • the second block chain 300 branches back to the third block chain 400 and the fourth block chain 500. do.
  • the third block chain 400 is a block chain to which blocks generated in the region B-1 in FIG. 6 are connected
  • the fourth block chain 500 is a block chain to which blocks generated in the region B-2 in FIG. 6 are connected. to be.
  • the branched block chains such as the first block chain 200, the second block chain 300, the third block chain 400, the fourth block chain 500, and the like, have unique block chain numbers corresponding to respective zones. Will have In addition, blocks generated in each zone may be generated by including a blockchain unique number corresponding to the corresponding zone, and these blocks may be connected to a block chain corresponding to the corresponding zone.
  • blocks generated in Zone A are generated to include blockchain ID # 29384
  • blocks generated in Zone B-1 are generated to include blockchain ID # 83743
  • B-2 Blocks created in the zone are shown to be generated to include the blockchain identification # 74832.
  • FIG. 7 is a diagram illustrating an example in which branched blockchains are merged into one blockchain structure.
  • 8 is a diagram illustrating an example in which a block stores a mother block hash value.
  • the third block chain 400 and the fourth block chain 500 may be combined again into one block chain so that subsequent blocks may be connected.
  • transaction throughput may increase or decrease, although a decrease in transaction throughput does not affect transaction throughput, but may affect the security of the blockchain.
  • a decrease in transaction throughput does not affect transaction throughput, but may affect the security of the blockchain.
  • block information including a hash value of the previous block is always stored, and in the mother block information_2, another block chain combined when two block chains are combined into one.
  • Block information, including the hash value of the preceding block may be stored. Unless combined into one, a block may be generated, usually left blank in the mother block information_2.
  • FIG. 9 is a flowchart sequentially illustrating a method for forming a block chain in a block chain system including a multiple block chain structure according to an embodiment of the present invention.
  • a block chain forming method in a block chain system including a multi-block chain structure may first include a mother block chain 100 including a plurality of blocks connected from an original block. It generates (S100).
  • the mother block chain 100 is first generated is formed in a single chain structure like the existing block chain structure.
  • the first blockchain 200 and the second blockchain 300 are located from the mother block 102 located at the end of the mother blockchain 100. This branching (S110).
  • the first block of the branched first block chain 200 is connected to the mother block 102, which is created to contain block information, including the hash value of the mother block 102, so that the first block chain ( 200).
  • the first block of the branched second block chain 300 is connected to the mother block 102, which is created to contain block information including the hash value of the mother block 102 and thus the second block. Is connected to the chain 300.
  • the first block chain 200 is a block chain to which blocks generated in the first zone are connected
  • the second block chain 300 is a block chain to which blocks generated in the second zone are connected.
  • the first zone and the second zone have different zones as a collection of nodes.
  • the newly added node is distributed among the zones with the lowest average transaction throughput among the first zone and the second zone, so that the transaction throughput is substantially equal for each zone. Can be distributed or allocated to a predetermined area depending on the nature or location of the node.
  • blocks having a unique block chain number corresponding to the first zone are generated and connected to the first block chain 200, and blocks corresponding to the second zone are generated and connected to the second block chain 300. This tells us which zone the block was created from.
  • the first block chain 200 may branch again or the second block chain may branch again (S120).
  • the first block chain 200 and the second block chain 300 may be combined again into one block chain so that subsequent blocks may be connected. This does not affect the transaction processing speed, although the decrease in the amount of transactions does not affect the processing speed of the transaction, but if the amount of transactions decreases below a predetermined level, the two branched blockchains can be reused. Can be combined into a blockchain.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)

Abstract

La présente invention concerne un système de chaînes de blocs comprenant une structure à chaînes de blocs multiples, et un procédé de formation d'une chaîne de blocs dans le système de chaînes de blocs. En tant que système de chaînes de blocs comprenant une pluralité de blocs de données formant une structure à chaînes de blocs multiples, le système de chaînes de blocs comprenant une structure à chaînes de blocs multiples comprend : une chaîne de blocs mère comprenant une pluralité de blocs liés à partir d'un bloc initial ; et des première et seconde chaînes de blocs ramifiées depuis un bloc mère et liées à ce dernier, le bloc mère étant positionné au niveau du dernier nœud de la chaîne de blocs mère. Un premier bloc, qui est un bloc initial de la première chaîne de blocs et qui est lié au bloc mère, comprend des informations de bloc qui contiennent une valeur de hachage du bloc mère, et un second bloc, qui est un bloc initial de la seconde chaîne de blocs et qui est lié au bloc mère, comprend des informations de bloc qui contiennent la valeur de hachage du bloc mère.
PCT/KR2018/014627 2018-01-31 2018-11-26 Système de chaînes de blocs comprenant une structure à chaînes de blocs multiples, et procédé de formation de chaîne de blocs dans un système de chaînes de blocs WO2019151629A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0012431 2018-01-31
KR1020180012431A KR20190093013A (ko) 2018-01-31 2018-01-31 다중 블록 체인 구조를 포함하는 블록 체인 시스템 및 그 블록 체인 시스템에서의 블록 체인 형성 방법

Publications (1)

Publication Number Publication Date
WO2019151629A1 true WO2019151629A1 (fr) 2019-08-08

Family

ID=67479313

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2018/014627 WO2019151629A1 (fr) 2018-01-31 2018-11-26 Système de chaînes de blocs comprenant une structure à chaînes de blocs multiples, et procédé de formation de chaîne de blocs dans un système de chaînes de blocs

Country Status (2)

Country Link
KR (1) KR20190093013A (fr)
WO (1) WO2019151629A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170212781A1 (en) * 2016-01-26 2017-07-27 International Business Machines Corporation Parallel execution of blockchain transactions
US20170230189A1 (en) * 2016-02-04 2017-08-10 Nasdaq Technology Ab Systems and methods for storing and sharing transactional data using a distributed computing systems
US20170278186A1 (en) * 2016-03-23 2017-09-28 Domus Tower, Inc. Distributing work load of high-volume per second transactions recorded to append-only ledgers
WO2017167548A1 (fr) * 2016-03-30 2017-10-05 British Telecommunications Public Limited Company Services d'application assurés

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170137388A (ko) 2016-06-03 2017-12-13 (주) 블록체인오에스 블록체인 기술을 이용한 무결성 보장 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170212781A1 (en) * 2016-01-26 2017-07-27 International Business Machines Corporation Parallel execution of blockchain transactions
US20170230189A1 (en) * 2016-02-04 2017-08-10 Nasdaq Technology Ab Systems and methods for storing and sharing transactional data using a distributed computing systems
US20170278186A1 (en) * 2016-03-23 2017-09-28 Domus Tower, Inc. Distributing work load of high-volume per second transactions recorded to append-only ledgers
WO2017167548A1 (fr) * 2016-03-30 2017-10-05 British Telecommunications Public Limited Company Services d'application assurés

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KIM, YOOHWAN ET AL.: "Dynamically Adjusting the Mining Capacity in Cryptocurrency with Binary Blockchain", INTERNATIONAL JOURNAL OF NETWORKED AND DISTRIBUTED COMPUTING, vol. 6, no. 1, 1 January 2018 (2018-01-01), pages 43 - 52, XP055595005, doi:10.2991/ijndc.2018.6.1.5 *

Also Published As

Publication number Publication date
KR20190093013A (ko) 2019-08-08

Similar Documents

Publication Publication Date Title
WO2017192007A2 (fr) Chaîne de blocs permettant de prendre en charge une pluralité de fonctions unidirectionnelles de vérification de blocs
WO2018043865A2 (fr) Système de gestion/recherche de fichier reposant sur une chaîne de blocs et procédé de gestion/recherche de fichier
WO2018080207A1 (fr) Procédé d'émission de monnaie et d'exécution de paiement par gestion d'une base de données de solde pour chaque bloc d'une chaîne de blocs et serveur l'utilisant
US11475150B2 (en) Methods and apparatus for implementing state proofs and ledger identifiers in a distributed database
WO2019045209A1 (fr) Module de fenêtre de blocs ayant un algorithme d'accord pour limiter le minage, serveur de gestion et système et procédé de négoce en monnaie virtuelle
WO2020138532A1 (fr) Procédé de consensus de chaîne de blocs basé sur un vote aveugle dynamique pour un environnement internet des objets
WO2018080206A1 (fr) Procédé d'émission de monnaie et d'exécution de paiement au moyen d'une structure arborescente de merkle de protocole orienté utxo et serveur l'utilisant
WO2019177380A1 (fr) Système de chaîne de blocs hybride et procédé de transmission de transaction de commande utilisant celui-ci
WO2021095987A1 (fr) Procédé et appareil de complémentation de connaissances basée sur une entité de type multiple
WO2024043610A1 (fr) Dispositif et procédé pour fournir un service d'aide à la neutralité carbone sur la base d'une mesure et d'une compensation de quantité d'émission de carbone
WO2020138606A1 (fr) Procédé de consensus tolérant aux défaillances pour éliminer des facteurs d'obstacle de consensus dans un réseau de chaînes de blocs
WO2022177204A1 (fr) Système décentralisé basé sur un did pour stocker et partager des données d'utilisateur
WO2020158973A1 (fr) Système et procédé de consensus de chaîne de blocs à 2 modes de protocole d'acceptation d'hypothèse
WO2019125041A1 (fr) Système d'authentification utilisant une séparation, puis un stockage distribué d'informations personnelles utilisant une chaîne de blocs
WO2021137391A1 (fr) Procédé de génération de chaîne de blocs utilisant un partage de secret
EP4022843A1 (fr) Procédés et dispositifs pour minage symbiotique sécurisé
WO2019151629A1 (fr) Système de chaînes de blocs comprenant une structure à chaînes de blocs multiples, et procédé de formation de chaîne de blocs dans un système de chaînes de blocs
WO2024090845A1 (fr) Procédé d'authentification de propriété de portefeuille de chaîne de blocs sans fonction de signature, et système l'utilisant
WO2023149660A1 (fr) Procédé et système d'apprentissage fédéré basé sur une signature de groupe, et support d'enregistrement pour la mise en œuvre de ceux-ci
WO2020166876A1 (fr) Procédé et système de gestion de don de sang
WO2023153868A1 (fr) Système de non minage de réseau de chaîne de blocs pour guide esg et procédé de fonctionnement de noeuds serveurs participant au même système
WO2020153580A1 (fr) Procédé de traitement de transaction faisant intervenir un nœud externe sur une chaîne de blocs et appareil permettant de mettre en œuvre le procédé
WO2022139565A1 (fr) Système et procédé de transaction d'énergie re100 utilisant une blockchain
WO2021101040A1 (fr) Procédé de génération de chaîne de blocs en utilisant une transaction de correctifs
WO2021020794A2 (fr) Système d'élagage vérifiable de grand livre

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18903901

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18903901

Country of ref document: EP

Kind code of ref document: A1