Phil Windley

AUGUST 3, 2017

The synopsis is that Sovrin allows us to find picos by name rather than location using the distributed ledger as a storage location for names based on decentralized identifiers (DIDs) that point to the current location of the pico. I wrote about that idea in some detail in Sovrin Use Cases: Portable Picos.

Engineering 40

Engineering Load Balancer Internet Programming 40

Phil Windley

SEPTEMBER 21, 2017

given that it relies on a permissioned ledger. Of course, the question is raised in an attempt to determine whether or not an identity system based on a permissioned ledger can make a legitimate claim that it's self-sovereign. Bitcoin and other decentralized ledgers are, in fact, logically centralized. There's one ledger.

Architecture 70

Architecture System Network Open Source 70

Phil Windley

JUNE 23, 2017

This Alpha Stage will allow us to ensure the network is stable and the distributed nodes function as planned. Sovrin is based on a permissioned distributed ledger. Permissioned means that there are known validators that achieve consensus on the distributed ledger. Test emergency response protocols and procedures.

Network 65

Network Government Security Development 65

Phil Windley

MARCH 13, 2020

The metasystem provides a universal means of discovering issuer identifiers and credential definitions in the ledger layer, and a universal protocol, called DIDComm, for connecting and sharing credentials in the agent layer. The Sovrin Stack comprises four layers: The Ledger Layer. Layer One: The Sovrin Public Ledger.

Government 59

Government Network Open Source Policies 59

Phil Windley

MAY 11, 2020

Summary: Creating a network of networks, where multiple ledgers serve as anchors for credential definitions, has consequences for the overall system's ability to resist censorship. SSI credentials are anchored on a distributed ledger. This post explore why. Sovrin Network is based on Hyperledger Indy.

Network 59

Network Government Architecture Internet 59

Phil Windley

MAY 6, 2020

Summary: Creating a network of networks, where multiple ledgers serve as anchors for credential definitions has consequences for the overall systems ability to resist censorship. SSI credentials are anchored on a distributed ledger. This post explore why. Sovrin Network is based on Hyperledger Indy. A Network of Networks.

Network 52

Network Government Architecture Internet 52

Phil Windley

JANUARY 7, 2019

The credential verifier can get the information that it needs from the ledger to validate the legitimacy of credential, so the system does not create a back channel from verifier to issuer that can be used to exchange information about the identity owner without her consent. Justifiable Parties.

Banking 88

Banking Internet System Software 88

Phil Windley

DECEMBER 10, 2018

The definition, public DID, schema, and revocation registry are all stored on a distributed ledger that is used for decentralized discovery. See What Goes on the Ledger (PDF) for more detail on these.). Anyone can write credential schemas to the ledger. Tags: sovrin credentials identity decentralization.

Banking 53

Banking Internet Examples Licensing 53

Phil Windley

OCTOBER 23, 2018

Summary: Sovrin is more than a ledger and its claim to being a decentralized identity system rests on more than that. Sovrin is a hybrid ledger. That ledger is the foundation for a peer-to-peer layer of agents that are used for establishing identity relationships and exchanging credentials. The Ledger Layer.

Open Source 45

Open Source Network Architecture Government 45

Phil Windley

JUNE 24, 2020

Debates rage about how specifically credential exchange should work, whether distributed ledgers are necessary, and, if so, how should they be employed. Tags: identity ssi self-sovereign credentials. You can build systems that use DIDs and verifiable credentials without giving participants autonomy.

System 52

System Tools Software Software 52

Phil Windley

FEBRUARY 25, 2019

For example, the did:sov method outlines how to create, lookup, and update the DID on the Sovrin ledger. Sovrin supports public DIDs, written to the ledger and resolvable by all—omnidirectional identifiers. Tags: sovrin identity decentralized+identifiers decentralization.

Authentication 102

Authentication Examples System Security 102

Phil Windley

DECEMBER 28, 2020

Furthermore, it can't go out of business and stop operation because its maintenance and operation are distributed instead of being centralized in the hands of a single organization. Like the internet, DIDComm's support for extension through protocols enables the creation of special-purpose networks and data distribution services on top of it.

Internet 135

Internet Network Architecture Security 135

Phil Windley

FEBRUARY 6, 2024

For example, the registry could be a distributed ledger or blockchain. Photo Credit: Data flowing over networks from DALL-e Tags: ssi identity decentralization And the term registry brings to mind a database of some kind. Why these are certainly possibilities, I think it's also possible to imagine more decentralized solutions.

Network 89

Network Banking Financial Government 89

Phil Windley

JULY 26, 2018

Coherence in Sovrin springs from the ledger, the protocols, the trust framework, standards, and market incentives. Stewards also, as a group, accept or reject any changes to the ledger-specific portions of the Sovrin open source code by virtue of that role. Tags: sovrin identity governance decentralization.

Government 40

Government Open Source Groups Network 40

Phil Windley

AUGUST 20, 2019

Human Integration —The universal identity metasystem must define the human user to be a component of the distributed system integrated through unambiguous human-machine communication mechanisms offering protection against identity attacks. Trust in the metasystem is dependent on the ledger shown in Layer 1 in Figure 1.

Internet 102

Internet Banking System Architecture 102