Jack Dorsey is building a decentralized web on Bitcoin called Web5.

  • Jack Dorsey’s TBD Presents Bitcoin-based Decentralized web5.
  • TBD’s Web5 takes a different approach than Web3 on how to build a properly decentralized internet
  • Bitcoin is the single chain used in the project.

Jack Dorsey’s Bitcoin-focused TBD business unit, a subsidiary of Block Inc., announced on Friday that it is building a new decentralized web named web5

Web5 is based on the factor that Web3 which was the idea of building a decentralized web with blockchain technology and cryptocurrencies, has the right intentions but is using the wrong tools.

Web5 uses Bitcoin, the decentralized monetary network, and a group of good computer science technologies to create a new ecosystem of decentralized identities, data storage, and applications in which the users are in control of their personal information.

New decentralized developments on the internet over the past couple of decades such as BitTorrent and Tor have shown that blockchain technology is not a necessary component for decentralization. But the blockchain has only proven to be needed for a very specific purpose which is to stop the double-spend problem to successfully bring peer-to-peer money to the digital space with Bitcoin.

TBD’s Web5 is made up of software components and services such as decentralized identifiers (DIDs), decentralized web nodes (DWNs), self-sovereign identity service (SSIS), and a self-sovereign identity software development kit (SSI-SDK). These components let developers focus on building user experiences while more easily enabling decentralized identity and data storage in applications.


Web5’s DID component uses ION, an open, public and permissionless second-layer DID network that runs on top of the Bitcoin blockchain. It is based on the deterministic Sidetree protocol, which requires no special tokens, trusted validators, or additional consensus mechanisms to function.

A DID is usually a globally unique persistent identifier that doesn’t require a centralized registration authority and is often generated and registered cryptographically. It consists of a unique uniform resource identifier (URI)  that serves as an ID with additional public key infrastructure (PKI) metadata describing the cryptographic keys and other fundamental PKI values linked to a unique, user-controlled, self-sovereign identifier in a target system such as the Bitcoin blockchain.

ION only allows DIDs to be deactivated by their owners, being hence censorship-resistant, and includes registry capabilities to support decentralized package managers and app stores. The decentralized network can process thousands of DID operations per second.


The DWN used by Web5 is a reference use of the Decentralized Identity Foundation’s DWN draft specification. Moe Jangda as a contributor and Daniel Buchner as an editor are the two people from Block that have contributed to the specification.

According to the specification, a DWN is a mechanism for data storage and message transmission that participants can use to locate public or private data linked to a given DID. It enables the interaction between different individuals that need to verify the identity of each other in order to transfer information to one another.

“Decentralized Web Nodes are a mesh-like datastore construction that enables an entity to operate multiple nodes that sync to the same state across one another, enabling the owning entity to secure, manage, and transact their data with others without reliance on location or provider-specific infrastructure, interfaces, or routing mechanisms,”  as per the specification.

TBD’s goal is to produce a first version of the current draft specification along with a reference implementation by July 1, 2022.

Contributions from the development community are expected. Interested developers can submit proposals and put requests to the GitHub repository. Issues can also be submitted on the same GitHub repository.


Web5’s SSIS is a web service that wraps the SSI-SDK. The SSIS interacts with the standards around verifiable credentials, credential revocations, requesting credentials, exchanging credentials, data schemas for credentials and other verifiable data, messaging using DWN, and usage of DIDs.

“Using these core standards, the SSIS enables robust functionality to facilitate all verifiable interactions such as creating, signing, issuing, curating, requesting, revoking, exchanging, validating, verifying credentials in varying degrees of complexity,”  As per its webpage.


The SSI-SDK uses simple standards related to self-sovereign identity. “The SSI-SDK intends to provide flexible functionality based on a set of standards-based primitives for building decentralized identity applications in a modular manner: with limited dependencies between components,”.


Please enter your comment!
Please enter your name here

Latest Popular