Nuggets is a consumer blockchain platform that will revolutionise online transactions. It gives users a single, simple biometric tool for payment, login and verifying identity – without sharing or storing personal data. Not even Nuggets itself can access that data. Nuggets gives consumers back control of their personal information. And it liberates companies from the risk and cost of trying to manage and secure huge databases of customer records. By atomising those databases, which are so prone to breaches and tempting for hackers, Nuggets can remove business’ biggest challenge: cyber security.
Consortiumm of companies building the ecosystem for decentralized identity management. Civic, uPort, Evernym etc. are all members.
Creating a unified decentralized identity ecosystem requires addressing a set of fundamental user needs and technical challenges:
- Enabling registration of self-sovereign identifiers that no provider owns or controls.
- The ability to lookup and discover identifiers and data across decentralized systems.
- Providing a mechanism for users to securely store sensitive identity data, and enabling them to precisely control what is shared with others.
A self-sovereign identity framework for the Ethereum platform.
Claims ERC: https://github.com/ethereum/EIPs/issues/735
Slides from the developer: https://www.slideshare.net/FabianVogelsteller/erc-725-identity
In the News:
Evernym is the creator of the open source Sovrin project, that has been folded into the Hyperledger Foundation under the project Hyperledger Indy. Evernym is an advocate of the online identity architecture becoming known as "Self Sovereign Identity". This paper explains the differences between Central Identity, Federated Identity, User Centric Identity, and Self Sovereign Identity: http://www.lifewithalacrity.com/2016/04/the-path-to-self-soverereign-identity.html (the references attached to this article are a wealth of research into Identity)
The 10 principles of self-sovereign Identity: https://github.com/ChristopherA/self-sovereign-identity/blob/master/ThePathToSelf-SovereignIdentity.md
Project white papers: Whitepapers
Example use cases here: https://sovrin.org/wp-content/uploads/2017/04/How-Sovrin-Works.pdf
Animated GIF showing how a sovran identity is created and utilized: http://www.windley.com/archives/2016/10/Sovrin-Animation.gif
Sovrin is the public utility permissioned blockchain that has launched it's first phase, they are calling it the Provisional Trust Framework. This is the stage the network is undergoing hardening and testing before general availability. Because it is a permissioned network, organizations can apply to be a "Steward" and operate a node on the network that will secure the blockchain. The list of current stewards can be found here: https://sovrin.org/stewards/. Learn about becoming a steward here: https://sovrin.org/wp-content/uploads/2017/04/Becoming-a-Sovrin-Steward.pdf
An important concept in Sovran is that of an "Agent", from their technical overview paper: "Agencies are service providers that help Jane manage her identity. You can think of them as analogous to Internet Service Providers. They are substitutable for one another and Jane can choose a new agency without losing any of her identifiers, attributes, proofs, or claims. "
Summary excerpt from project home page
With Sovrin, trust is established using verifiable claims. Verifiable claims open a limitless new world of trusted authentication. Paperlessly, passively – instantly.
A verifiable claim is exactly what it sounds like: a claim shared by any person, organization, or thing that can be instantly verified by the receiving party.
1) The post office issues a verifiable claim to Alice attesting that her street address is 123 Main Street.
2) Alice shares this claim with her credit union as part of opening a new account.
3) Without having any connection to or interaction with the post office, the credit union instantly and cryptographically verifies that Alice’s claim is signed by the post office and has not been revoked.
4) Alice now owns this proof-of-address claim and can use it anywhere she wants, as much as she wants, and now the credit union can trust that Alice’s address is 123 Main Street.
Advantages over hub-and-spoke model:
1) Not restricted to specific data types, mechanisms, or contracts imposed by a central hub, anyone can present identity information of any type to anyone else in the world, and the recipient can unpack and verify it instantly, with no need for hundreds of complex APIs and commercial contracts.
2) Verifiable claims, along with all private data, are stored off-ledger by each self-sovereign identity owner, wherever the owner decides. No private information is ever stored on the ledger, in any form.
3) The combination of self-sovereign identity and verifiable claims enables highly advanced privacy-enhancing techniques, such as zero-knowledge proofs (for selective disclosure) and anonymous revocation, to be made available to the world.
Partners and In the News:
Partner with CU Ledger, a permissioned ledger and identity system being built by a consortium of Credit Unions. http://culedger.com
" Combining a decentralized architecture on a blockchain, with biometrics on a mobile device, Civic is a new way system for personal and enterprise identity management and provides multi-factor authentication without the need for usernames, passwords, third party authenticators, or hardware keys.
Civic’s ecosystem is designed to incentivize participation by trustworthy IDV providers known as “Validators,” who may include financial institutions, government entities, and utility companies, among others. Validators will be able to verify the identity of an individual or business, known as a “Use,” and ‘stamp’ or record this approval on the blockchain in the form of an attestation.
Parties known as “Service Provider” who are seeking to verify the same information about a given User, and who may include other Validators, would no longer need to independently verify that information and could instead leverage the work already performed by trusted Validators. "
Civic creates an ecosystem where validators can offer PII (personally identifiable information) data about users for sale using the smart-contracts. Once a user has authorized PII data to be released to a requesting party, the requesting party will pay the validator in the CVC token a price for the data. A portion of the price will also be given to the user to incentivize users participation in the ecosystem.
We need to investigate further if Civic has the same property as Sovrin/INDY in that data shared with service-providers within the Sovrin system is not able to be correlated between service providers.
Project Home Page: https://www.civic.com/
Project White Paper: https://tokensale.civic.com/CivicTokenSaleWhitePaper.pdf
Blog of Founder/CEO, Vinny Lingham, very good insights into the larger blockchain/crypto ecosystem: https://vinnylingham.com/
Civic will be launching it's smart-contracts on the RootStock smart-contract platform building on Bitcoin, Interestingly RootStock is also partnering with EtherParty allowing for Ethereum smart contracts to be run on BitCoin, this is an exciting area to keep an eye on.
From the white paper, this shows how the marketplace for data will work...