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Shedding Light on LINE Token Economy You Won't Find in Our White Paper

Toshimasa Nasu
LINE / Blockchain Lab

While the LINE Token Economy concept and white paper was published in late August 2018, technical details and future architectural plans were not. This session focuses on key topics surrounding LINE's blockchain technology, including LINE's decision to expand services utilizing blockchain technology, reasons behind LINE to develop/launch its own blockchain platform, current issues and how LINE is working to solve them, LINE Token Economy infrastructure for creating blocks, and architecture for Smart Contracts execution platform.

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Shedding Light on LINE Token Economy You Won't Find in Our White Paper

  1. 1. • Get Benefit • Get Benefit User Service Shareholder • Get Benefit? FIRST QUESTION?
  2. 2. Cash/Point UserService SECOND QUESTION?
  3. 3. Cash/Point UserService THIRD QUESTION? System ≠ Benefits?
  4. 4. TODAY 32,834,324,740 point (2017/09 - 2018/08)
  5. 5. TODAY
  6. 6. TRANSPARENCY AND SAFETY More Fun ! Service User Transparency and Safety
  7. 7. FUTURE Blockchain
  8. 8. BACK TO TODAY
  9. 9. TECHNOLOGY OF BLOCKCHAIN
  10. 10. User ExchangeService FUTURE WITH BLOCKCHAIN Point/CashPoint
  11. 11. USER BOTTLENECKS Private Key DiscoveryWallet
  12. 12. DEVELOPER BOTTLENECKS Safety Scalability Blockchain Technology
  13. 13. Service-Oriented Blockchain Platform LINK Network LINK Framework dApps LINK Chain = Service
  14. 14. Service dApps DECENTRALIZED APPLICATIONS
  15. 15. LINK Network LINK Framework dApps Service-Oriented Blockchain Platform = Service LINK Chain
  16. 16. - Consensus Algorithm - Scalable architecture LINK Network
  17. 17. CONSENSUS ALGORITHM
  18. 18. SCALABILITY
  19. 19. LINK Network LINK Framework dApps Service-Oriented Blockchain Platform = Service = Blockchain LINK Chain
  20. 20. LINK Framework - Auto-create wallet at sign-in - Secure private keys - Available APIs
  21. 21. - LINE open platform - Smart contract templates dApps
  22. 22. SMART CONTRACT LINK Point on Smart Contract
  23. 23. LINK Network LINK Framework dApps Service-Oriented Blockchain Platform = Service = API = Blockchain LINK Chain
  24. 24. LINE OFFERS A SERVICE-ORIENTED BLOCKCHAIN PLATFORM
  25. 25. LINK Chain LINK Network LINK Framework C-Node C-Node C-Node Leader C-Node S-Node S-Node C-Node C-Node C-Node C-Node C-Node C-Node S-Node S-Node LINK SCAN UI LINK Admin/TDK UI LINK API Module LINK Block Data Module LINK Relayer Module LINK Connect Module LINK Front API Module LINK Wallet Module LINK Query Module
  26. 26. Wizball 4CAST
  27. 27. LINK Network Consumer LINK SCAN HBase LINK SCAN Front Watcher Prometheus IMON Logger filebeat Logger logstash LINK SCAN Front Internet L7 (DNS) LINK SCAN Radis C-Node C-Node C-Node Leader C-Node L7 (DNS) L7 (DNS) S-Node S-Node C-Node C-Node C-Node C-Node C-Node C-Node S-Node S-Node LINK Network Watcher Grafana Producer Kafka
  28. 28. LINK SCAN https://scan.link.network/contracts
  29. 29. LINK Network Consumer LINK SCAN HBase LINK SCAN Front Watcher Prometheus IMON Logger filebeat Logger logstash LINK SCAN Front Internet L7 (DNS) LINK SCAN Radis C-Node C-Node C-Node Leader C-Node L7 (DNS) L7 (DNS) S-Node S-Node C-Node C-Node C-Node C-Node C-Node C-Node S-Node S-Node LINK Network Watcher Grafana Producer Kafka
  30. 30. C-Node:
 Consensus-Node ● Nodes that run on the consensus algorithm for generating and validating blocks C-Node C-Node C-Node Leader C-Node L7 (DNS) L7 (DNS) S-Node S-Node C-Node C-Node C-Node C-Node C-Node C-Node S-Node S-Node
  31. 31. S-Node:
 Sync-Node ● Read-only nodes that are fully synced with C-Nodes to provide stable data query to the service C-Node C-Node C-Node Leader C-Node L7 (DNS) L7 (DNS) S-Node S-Node C-Node C-Node C-Node C-Node C-Node C-Node S-Node S-Node
  32. 32. Fast Finality PBFT CONSENSUS ALGORITHM Request Pre Prepare Prepare Commit Reply Client Leader Replica Replica Replica
  33. 33. Request PBFT Request Pre Prepare Prepare Commit Reply Client Leader Replica Replica Replica
  34. 34. Pre Prepare PBFT Request Pre Prepare Prepare Commit Reply Client Leader Replica Replica Replica
  35. 35. Prepare PBFT Request Pre Prepare Prepare Commit Reply Client Leader Replica Replica Replica
  36. 36. Commit PBFT Request Pre Prepare Prepare Commit Reply Client Leader Replica Replica Replica
  37. 37. Reply PBFT Request Pre Prepare Prepare Commit Reply Client Leader Replica Replica Replica
  38. 38. Smart Contract on LINK Network LINK Contract LINK Contract A Owner Wallet LINK Contract Update Check Whitelist
  39. 39. Inside C-Node FLEXIBLE ARCHITECTURE Channel LINK Core LINK Service Peer Manager Block Manager Network Interface Message Queue Client Interface (REST, jsonRPC) Outer service (gRPC, jsonRPC) Inner service (Message Queue) Consensus Manager Broadcast Manager Base Coin Manager LINK Contract Manager Governance Manager STEP Manager
  40. 40. Inside Channel MODULAR NODE ARCHITECTURE LINK Core LINK Service Peer Manager Block Manager Consensus Manager Broadcast Manager Base Coin Manager LINK Contract Manager Governance Manager STEP Manager
  41. 41. Whitelist management LINK Contract TX Whitelist Request Pre Prepare Prepare Commit Reply Client Leader Replica Replica Replica LINK Service Base Coin Manager LINK Contract Manager Governance Manager STEP Manager
  42. 42. 5 4 3 2 1 Unzip & Load Validate 4 & 5 TX with Contract Deploy TX Contract.zip Temporary LINK Contract List Contract Block & Transactions Request Pre Prepare Prepare Commit Reply Client Leader Replica Replica Replica LINK Contract
  43. 43. 5 4 3 2 1 Deploy Finality TX Contract.zip Temporary LINK Contract List Confirmed LINK Contract List Contract Block & Transactions ContractRequest Pre Prepare Prepare Commit Reply Client Leader Replica Replica Replica LINK Contract
  44. 44. 5 4 3 2 1 Update TX New Contract.zip Temporary LINK Contract List New Contract Confirmed LINK Contract List Contract Block & Transactions Request Pre Prepare Prepare Commit Reply Client Leader Replica Replica Replica LINK Contract
  45. 45. 5 4 3 2 1 Update Finality TX New Contract.zip Confirmed LINK Contract List Confirmed LINK Contract List New Contract Block & Transactions ContractRequest Pre Prepare Prepare Commit Reply Client Leader Replica Replica Replica LINK Contract
  46. 46. LINK Framework LINK Framework LINK SCAN UI LINK Admin/TDK UI LINK API Module LINK Block Data Module LINK Relayer Module LINK Connect Module LINK Front API Module LINK Wallet Module LINK Query Module
  47. 47. LINK Framework HOW TO USE LINK Frame work 1. Create Account Admin Admin Wallet 1.1 Create Wallet
  48. 48. LINK Framework HOW TO USE LINK Frame work Admin Admin Wallet dApp dApp Smart Contract 2.1. Mint 2.2. Add Whitelist 2.Register dApp
  49. 49. LINK Framework HOW TO USE LINK Frame work Admin Admin Wallet dApp dApp Smart Contract Operator Operator Wallet 3.1. Create Wallet 3.2. Add Whitelist3.Add Operator
  50. 50. LINK Framework HOW TO USE LINK Frame work Admin Admin Wallet dApp dApp Smart Contract Operator Operator Wallet User 4. LINE Login User Wallet 4.1 Create Wallet
  51. 51. LINK Framework HOW TO USE LINK Frame work Admin Admin Wallet dApp dApp Smart Contract Operator Operator Wallet User User Wallet 5. Transfer 5.2. Call 5.1. Check whitelist 5.3. Transfer
  52. 52. LINK Network LINK Framework HOW TO USE LINK Frame work Admin Admin Wallet dApp dApp Smart Contract Operator Operator Wallet User User Wallet LINK Scan UI
  53. 53. LINE OFFERS A SERVICE-ORIENTED BLOCKCHAIN PLATFORM
  54. 54. PAST ACHIEVEMENTS LINK Chain 2018.09
  55. 55. AND FUTURE MILESTONES LINEAR NETWORK PARTNER dApp OPEN dAppLINK Chain 2018.09 2018.12 2019.1Q 2019.2Q
  56. 56. Leaf-chain Root-chain Leaf-chain Leaf-chain Leaf-chain Leaf-chain LINEAR NETWORK
  57. 57. PARTNER / OPEN dApps LINK Framework dApp Easy & Secure dApp dApp Functional Own Chain
  58. 58. ? PUBLIC BLOCKCHAIN
  59. 59. CLOSING THE DISTANCE USER
  60. 60. CLOSING THE DISTANCE PARTNER
  61. 61. THANK YOU

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