Ontospace: a stable, scalable, efficient and cost-effective network for ONTOCHAIN

Slides presented at the ONTOCHAIN Summit for Trustworthy Internet by Mirek Sopek, Founder of MakoLab, Tomasz Pawlik & Dominik Kuziński

Transcript

1. CLICK TO EDIT
   MASTER TITLE STYLE
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   Location
   Date
   ONTOSPACE
   Blockchain solution for
   graph data storage
   Berlin
   02.06.2022
   

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2. | ONTOCHAIN.NGI.EU
   2
   ONTOSPACE
   BLOCKCHAIN SOLUTION FOR GRAPH DATA STORAGE
   Main challenge:
    Storage of graph
   data secured with
   Blockchain
    Create an ecosystem
   of Blockchains
   Modified
   Ethereum Client:
   New Hashing
   Algorithm: Authentication:
   We have chosen
   Besu client
   New method of
   calculating graph
   digest
   With use of
   well known
   MetaMask
   Tethering mechanism : Storage of graph data secured with Blockchain
   

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3. | ONTOCHAIN.NGI.EU
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   ONTOSPACE
   MODIFIED BESU CLIENT
   Problem:
   By default, Ethereum client and EVM do not support direct reads from
   external data sources
   Solution:
   Modification of existing RETURN opcode, not interfering with
   Ethereum specification
   

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4. | ONTOCHAIN.NGI.EU
   4
   ONTOSPACE
   NEW HASHING ALGORITHM
   New hashing algorithm - Interwoven Hash of Vicious Circle Free Graph:
   • Java implementation of algorithm with extensive test harness
   • Proper digest calculation in as many different cases as possible
   • Secure
   • Compatible with specification provided in publication :
    graphchain.io/IEEE
   

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5. | ONTOCHAIN.NGI.EU
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   ONTOSPACE
   AUTHENTICATION WITH METAMASK
   Benefits:
   • Well-known in community
   • Secure
   • Restricted access to system functionalities
   • Easy to, use one-click login flow
   • Intuitive user interface
   

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6. | ONTOCHAIN.NGI.EU
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   ONTOSPACE
   TETHERING MECHANISM
   Tethering mechanism:
   • Connection to Parent Chain
   • Possibility for existence in ecosystem of Blockchains
   • Simple to implement
   

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   SYNCHRONIZATION BETWEEN NODES
   Improved synchronization
   mechanism:
   • Blockchain driven
   synchronization of
   triplestores
   • Can sync graphs from
   every node
   • Mechanism hidden from
   end-user (functions like
   normal triplestore)
   

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8. | ONTOCHAIN.NGI.EU
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   SOLUTION
   Ecosystem
   component​
   Description
   Ontospace
   The entire ecosystem of Blockchains and
   semantic data pools​
   OntoSidechain
   A single Blockchain of Layer-2 sidechain type. It
   may have both Blockchain and semantic
   software modules but can also be a generic
   sidechain​
   Ontonode
   A single node of OntoSidechain. If
   the OntoSidechain is compliant with GraphChain
   concept, Ontonode contains Blockchain
   node, Ontopod and Ontoshell
   Ontopod
   A part of Ontonode responsible for
   handling semantic data chains of named RDF
   graphs​
   Ontoshell
   Software modules for external communication
   for Ontonode (API & Linked data HTTP)​
   

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9. | ONTOCHAIN.NGI.EU
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   SOLUTION
   Ecosystem co
   mponent​
   Description​
   Ontospace
   The entire ecosystem of Blockchains and semantic
   data pools​
   OntoSidechain
   A single Blockchain of Layer-2 sidechain type. It may
   have both Blockchain and semantic software modules
   but can also be a generic sidechain​
   Ontonode
   A single node of OntoSidechain. If
   the OntoSidechain is compliant with GraphChain
   concept, Ontonode contains Blockchain node, Ontopod
   and Ontoshell
   Ontopod
   A part of Ontonode responsible for handling semantic
   data chains of named RDF graphs​
   Ontoshell
   Software modules for external communication for
   Ontonode (API & Linked data HTTP)​
   Blockchain node Ethereum Besu client.​
   Sync middlewar
   e
   Our own mechanism for sycnhronization of blockchain
   node and Ontopod.​
   

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10. BEYOND THE
    PROOF OF
    CONCEPT
    ONTOCHAIN OPEN CALL 2
    

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    FINAL OUTCOME
    Ecosystem with the primary and fundamental goal of offering:
     Stable
     Scalable
     Efficient
     Cost-effective network
    

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    GRAPHCHAIN USE CASE: DIGITAL IDENTITY
    GraphChain for the
    LEI system:
    https://lei.info
    

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    Sidechain as a separate entity:
     Out-of-the-box solution
     Graph data storage
     Secure and transparent thanks
    to the Blockchain technology
    Sidechain as a separate entity:
     Data ownership in blockchain
     Monitor and limit data usage
    Support for different processes
    based on created sidechains:
     Scalability
    

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15. graphchain.io
    HTTPS://GITHUB.COM/ONTOCHAIN/ONTOSPACE
    

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