Open Source Blockchain Platforms

Open Source Blockchain Platforms

This entry catalogs major open source Blockchain platforms as potential components of Open Source Finance (See wikipedia entry for a broader review of the blockchain software concepts)

A blockchain denotes a network based software system and protocols that enable "an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way". This design is at the core of various virtual / crypto currencies but it is considered more broadly applicable.

NOTE: We use here blockchain in the broadest sense (as a distributed ledger) and do not differentiate by the specific mechanisms of operation

Classification

There are various types of blockchain networks:

By Access Type

• Public Blockchains: A public blockchain has no access restrictions.
• Private (Permissioned) blockchains: A private blockchain is permissioned. Membership is by invitation.
• A hybrid blockchain has a combination of centralized and decentralized features.

By Use

Blockchain technology can in principle be applied in multiple areas:

• The primary use of blockchains continues to be for cryptocurrencies
• Back office settlement
• In supply chain logistics and supply chain management
• As general public ledger for compiling data

By Consensus Algorithms

• Proof of Work
• Proof of Stake
• Other

Catalog

The catalog does not aim to be exhaustive (in particular in the area of cryptocurrencies where hundreds of variations already exist). For a more in depth discussion of key platform features see

• DECODE project
• Hyperledger, an umbrella project that promotes various platforms:
  • Iroha
  • Sawtooth
  • Fabric
• Corda
• Iota
• Stellar
• Ethereum
• Bitcoin
• Libra