Please enable JavaScript.

Coggle requires JavaScript to display documents.

Extensible Interledger Bridge # #, Interledger approaches paper, SoK on…

- - - - Notion of time
      - Persistence and liveness
      - Transaction model
      - Ledgers & state evolution
  - - - Atomicity
      - Timeliness
      - Correctness
      - Effectiveness
    - - Setup
      - Pre-commit on X
      - Verify
      - Commit on Y / abort
    - - Focus on assets on ledgers
  - - - Impossibility of CCC without a Trusted Third Party
    - - Incentives & rational CCC
- - - - Same above
    - - Same above
  - - - Hybrid
      - Synchrony assumption (Lock contracts)
      - TTP
  - - - Bootstrapping
      - Sidechains
      - Sharding
      - Cryptocurrency-based assets
- - - - Notary schemes
        
        Mechanism
        
        Triggering transactions in a chain upon an event taking place on another chain
        
        A set of notaries decentralize the consensus process
        
        Pros & cons
        
        Simplifies cross-chain transactions
        
        Trust anchor put on centralized party
        
        Typicals
        
        Cryptocurrency exchanges
        
        Centralized
        
        Cecentralized
        
        Agent chain
      - Timed hash-locks
        
        Mechanism
        
        HTLC
        
        Typicals
        
        Table 4
      - Side chains #
        
        Mechanism
        
        Cross-chain communication protocol (CCP)
        
        E.g. two-way peg
        
        SPV / centralized two-way pegs /
        
        Components
        
        Consensus on chains
        
        CCP
        
        Use case
        
        Scalability
        
        Asset exchange
        
        Typicals
        
        BTC Relay, POA network, OmniLedger... (Table 3)
      - Hybrid solutions
        
        Typicals
        
        Torrex, Xclaim
        
        Mechanism
        
        Novel approaches, e.g. distributed private key schemes
    - - Almost only in public blockchains, except the hybrid ones
  - - - Focus on general use-cases and heterogeneous systems.
    - - Blockchain Engines are frameworks that provide reusable data, network, consensus, incentive, and contract layers for the creation of customized blockchains, to power decentralized applications, that interoperate between each other
    - - Cosmos
      - Polkadot
      - AION, ARK, etc (Table 6)
  - - - Trusted Relays
        
        Mechanism
        
        A blockchain registry
        
        Often used in permissioned blockchain environments
        
        Concepts
        
        Trusted relays are trusted parties that redirect transactions from a source blockchain to a target blockchain
        
        Typicals
        
        Hyperledger Cactus
        
        Generic protocols e.g. Kan et al, Abebe et al, Falazi et al #
        
        TODO: check assumptions
      - Blockchain Agnostic Protocols
        
        Limitation
        
        No backward compatibility
        
        Typicals
        
        TradeCoins
        
        Mechanism
        
        Entities that execute and validate cross-blockchain transactions are called gateways
        
        Gateways can then redirect transactions to the corresponding blockchain
        
        Kan et al
        
        Interledger Protocol (ILP)
        
        Hyperledger Quilt
      - Blockchain of blockchains
        
        Concepts
        
        A system where a consensus protocol organizes blocks that containing transactions belonging to Cross-Chain dApps
        
        Typicals
        
        Overledger, Hyperservice, Block collider, CAPER
      - Blockchain migrators #
        
        Concepts
        
        Perform runtime state migration across blockchains
        
        Resemble the Notary scheme
        
        Typicals
        
        Frauenthaler et al, Scheid et al, Flynn et al