Hyperledger Quilt is a Java implementation of Interledger, a suite of open protocols and standards that allows payments interoperability across any currency - fiat or crypto. Interledger standards and specifications are being defined by the open source community at Interledger.org and at various community groups in the W3C, including Web Monetization and Web Payments.

Key Characteristics

By implementing the Interledger protocol, Quilt provides:

• Foundations: A set of protocols and primitives for enabling value interoperability across any fungible asset system, including crypto, fiat, in-game, and other token currencies.

• Identity: A standardized, globally unique identifier for payment accounts called Payment Pointers.

• Liquidity: A peer-to-peer packetized payments protocol specified under ILPv4.
• Sending & Receiving: A Java implementation  of STREAM, which is a packetized payment protocol inspired by the QUIC Internet Transport Protocol. STREAM operates on top of core Interledger protocols by allowing a sender and receiver to coordinate a payment over any arbitrary Interledger topology. 

• Extensibility: Quilt provides a framework for designing higher layer use-cases on Interledger to enable payment systems interoperability.

Documentation

• Java Code Documentation
  • Project overview
  • Javadoc Links
  • Java Examples
    
    
• Interledger Protocols
  • Interledger Addresses: a hierarchical identifier for Interledger network nodes that enables efficient routing of payment packets.
  • ILPv4: The lowest-layer Interledger protocol that enables packets to multi-hop from peer to peer across the Interledger.
  • Payment Pointers: a standardized identifier for end-user payment accounts.
  • ILP-over-HTTP: An HTTP protocol that allows two peers to transmit ILPv4 packets to each other using HTTP.
  • SPSP: Simple Payment Setup Protocol, used to allow a sender and receiver to negotiate the security parameters of an Interledger payment.
  • STREAM: A protocol for reliably sending money and data over ILPv4.

Project Management

• Github Issues

Repositories

• Github: hyperledger/quilt

Communication

Mailing Lists

• Quilt Maling List

• W3C Interledger Mailing List

Chat/Communications (for questions and ephemeral discussions)

• Hyperledger Rocket Chat: #quilt

• Interledger Slack.
• Interledger Community Forum.
• Other ways to get involved in the Interledger community.

Community Meetings

We have open community calls every other Wednesday at 5pm UTC to discuss the latest in Interledger Java projects, including Interledger spec development, the Quilt implementation, and to answer any questions people have. Agendas are sent out via the mailing lists and anyone can suggest an agenda item by adding to the topic created for that purpose in the Interledger forum (or by reaching out on any channel in the community).

Previous meeting recordings can be found here .

History

• Proposed by Takahiro Inaba – NTT DATA, Adrian Hope-Bailie – Ripple, and Isaac Arruebarrena – Everis, an NTT DATA Company.

• Approved by the TSC on 2017-10-12.

• Approved maintainer change to David Fuelling on 2019-09-19.