Hyperledger

Simpler setup for Hyperledger Fabric on Kubernetes using Docker-in-Docker

Hyperledger Fabric is a distributed blockchain network that allows users to define the behavior of their ledgers using conventional general-purpose programming languages. This user-defined blockchain…

Understanding Hyperledger Sawtooth — Proof of Elapsed Time

Sawtooth, like Fabric, is a permissioned blockchain network technology. The network is called permissioned because prospective participants must identify themselves to the network, and the network can decide whether to let them…

Understanding Corda—Transactions vs Blocks

Corda is a blockchain-inspired distributed ledger technology that currently targets finance use cases. Like Hyperledger Fabric, it’s a permissioned network where all participants have verifiable identities — using public-key infrastructure. However…

Understanding Hyperledger Fabric — Gossip

Hyperledger Fabric is a distributed blockchain network where multiple components each keep their own copy of a shared ledger, the definitive history of all transactions. As new transactions occur, they must be distributed across the network, keeping all…

Understanding Hyperledger Fabric — Byzantine Fault Tolerance

The architecture of Hyperledger Fabric factors out consensus into its own component — the orderer service. This is an unusual feature because it means Fabric can support different consensus algorithms by just switching out…

Understanding Hyperledger Fabric — Endorsing Transactions

One key difference between Hyperledger Fabric and many other blockchain platforms is the lifecycle of a transaction. In other platforms, the lifecycle of a transaction is usually this:

• Order: Transactions…

Understanding Hyperledger Fabric — Channel Lifecycle

In a Hyperledger Fabric network, there can be multiple ledgers. These ledgers are called channels, and each has its own set of peers that are allowed to participate — by proposing and receiving transactions.

Understanding Hyperledger Fabric — Chaincode

Hyperledger Fabric is an open-source distributed blockchain implementation. An important piece of its architecture is chaincode.

The core of any blockchain platform is the ledger, a shared, tamper-proof history of the…