https://github.com/peacekeeper/blockchain-identity

Blockchain and Identity
https://github.com/peacekeeper/blockchain-identity

Last synced: about 1 month ago
JSON representation

Blockchain and Identity

• Host: GitHub
• URL: https://github.com/peacekeeper/blockchain-identity
• Owner: peacekeeper
• License: cc-by-4.0
• Created: 2016-03-16T10:28:54.000Z (almost 9 years ago)
• Default Branch: main
• Last Pushed: 2024-03-03T18:18:24.000Z (10 months ago)
• Last Synced: 2024-10-30T06:31:28.141Z (about 2 months ago)
• Size: 199 KB
• Stars: 647
• Watchers: 91
• Forks: 154
• Open Issues: 28
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-blockchain - Blockchain and Identity

README

        
### Blockchain and Identity

**Note:** Also check out:

* [Decentralized-ID.com](https://decentralized-id.com/) - [GitHub](https://github.com/decentralized-id/decentralized-id.github.io) - A website made up of curated lists surrounding decentralized, self-sovereign, and blockchain identity resources.

* [Identosphere Weekly Identity Highlights](https://identosphere.substack.com/) - Kaliya Identity Woman and Infominer (of Decentralized-ID.com) stay current on happenings in SSI\DID.

* [https://kumu.io/vijarn/markus-sabadello-and-infominer33-on-identity-landscape](https://kumu.io/vijarn/markus-sabadello-and-infominer33-on-identity-landscape) - Visualization of blockchain identity resources

**Projects/companies working on blockchain and identity (pull requests welcome)**:

 * [Namecoin](http://namecoin.org/) is a blockchain that has been conceived from the start to be used for registering domain names. It is the first fork of the Bitcoin software.

 * [NameID](https://nameid.org/) is an OpenID service based on Namecoin identifiers.

 * [CertCoin](https://courses.csail.mit.edu/6.857/2014/files/19-fromknecht-velicann-yakoubov-certcoin.pdf) is an MIT paper about a NameCoin-based decentralized authentication system which maintains a public ledger of domains and their associated public keys.

 * [ChainAnchor](http://connection.mit.edu/wp-content/uploads/sites/29/2014/12/Anonymous-Identities-for-Permissioned-Blockchains2.pdf) is MIT paper about an architecture that adds an identity and privacy-preserving layer above the blockchain, either the private blockchain or the public blockchain in Bitcoin.

 * [Blockstack](https://github.com/blockstack) is a network of computers that collectively maintain a global registry of domain names, public keys, and cryptographic hashes. With this registry, Blockstack serves as a decentralized domain name system (DNS) and a decentralized public key infrastructure (PKI). [Onename](https://onename.com/) is a product built on Blockstack that allows people to register identities.

 * A workshop called [“Rebooting the Web-of-Trust”](http://weboftrust.info/) has produced a paper about a [Decentralized Public Key Infrastructure](https://github.com/WebOfTrustInfo/rebooting-the-web-of-trust/blob/master/final-documents/dpki.pdf) (DPKI), which registers identifiers and associated public keys on blockchains.

 * The non-profit organization XDI.org has designed a blockchain-based [registry](https://docs.google.com/document/d/1i-XChGFsuAi-Id85FWXjX6hOWDn9Sq-qe7ARykJgsBI/) for human-readable names and machine-readable numbers.

 * [Consensys](https://consensys.net/) has developed the blockchain-based, self-sovereign identity system [uPort](https://www.uport.me/) to launch an [“Internet-of-People.”](http://www.ibtimes.co.uk/ethereum-studio-consensys-launches-internet-people-digital-ids-assets-secured-unbuntu-phones-1542620)

 * [ID.ee](https://www.id.ee/) is a program to build blockchain identity solutions related to the Estonian e-Residency concept.

   * [Security flaw](https://www.mccarthy.ca/en/insights/blogs/cyberlex/estonian-blockchain-based-id-card-security-flaw-raises-issues-about-identity") found in Estonian blockchain ID.

 * [BitAlias](https://bitalias.github.io/) allows users to register names in the Bitcoin blockchain and point them to their wallets.

 * [EtherID](http://etherid.org/) allows registration of domain names for an Ethereum account.

 * [ENS](https://github.com/nexusdev/ENS) is the “Ethereal Namespace”, a contract system and set of conventions to form a hierarchical namespace.

 * [Ethereum Name Service](https://ens.domains/) is a naming system based on Ethereum smart contracts that provides registration of human-readable names, as well as resolution to service and resource identifiers. A name is registered by using an Ethereum dapp to enter an auction process for the desired name.

 * [Evernym](http://www.evernym.com/) is developing a public permissioned distributed ledger called [Sovrin](http://www.sovrin.org/), which is designed specifically for "self-sovereign identity" and privacy-preserving cryptography. It is fully open source (FOSS) as project [Indy](https://www.hyperledger.org/projects/indy) within the Hyperledger family. Multiple [white papers](https://sovrin.org/library/) explain the the [ideas](https://medium.com/evernym) and [technologies](https://indy.readthedocs.io/en/latest/) behind it.

 * At Ethereum’s DEVCON ONE conference, a [talk](https://www.youtube.com/watch?v=QpaTOvAhLR4) on blockchain, digital identity, and public key infrastructure was given.

 * [Bitnation](https://bitnation.co/) seeks to establish the concept of “world citizenship” through identity registration on the blockchain. The project is collaborating with the Estonian e-Residency program and also has a focus on offering ["blockchain emergency IDs"](https://refugees.bitnation.co/) to refugees.

 * In December 2015, The Linux Foundation announced the launch of the [Hyperledger Foundation](https://www.hyperledger.org/), a collaborative effort to develop enterprise-grade blockchain tools and platforms. ([whitepaper](https://www.hyperledger.org/wp-content/uploads/2018/07/HL_Whitepaper_IntroductiontoHyperledger.pdf)) ([Architecture Part 1: Consensus](https://www.hyperledger.org/wp-content/uploads/2017/08/Hyperledger_Arch_WG_Paper_1_Consensus.pdf)) ([Architecture Part 2: Smart Contracts](https://www.hyperledger.org/wp-content/uploads/2018/04/Hyperledger_Arch_WG_Paper_2_SmartContracts.pdf))

 * [ID2020](http://id2020.org/) seeks to provide every child born after 2020 with a self sovereign digital identity, which helps reduce risks of trafficking and drive digital inclusion.

 * [Shocard](https://shocard.com/) is an early stage company developing an “identity platform” built on blockchain.

 * A [research team](http://mm.aueb.gr/) at Athens University of Economics and Business is working on “information-centric” networking and is exploring the use of blockchain technology for “content names”. 

 * The U.S. Department of Homeland Security is [funding](https://blog.aniljohn.com/2015/12/federal-gov-funds-for-identity-r-and-d.html) research on the "Applicability of Blockchain Technology to Privacy Respecting Identity Management."

 * An MIT [paper](http://web.media.mit.edu/~guyzys/data/ZNP15.pdf) about "Decentralizing Privacy: Using Blockchain to Protect Personal Data".

 * An Ethereum [blog post](https://blog.ethereum.org/2016/01/15/privacy-on-the-blockchain/) about "Privacy on the Blockchain", including some thoughts about identity systems.

 * [Jolocom](http://jolocom.com/) is developing a "SmartWallet" for everyone to own their personal digital identity, using [Social Linked Data](https://github.com/solid/solid-spec), WebID, and verifiable claims standards, as well as Ethereum smart contracts. The company focuses on decentralization and GDPR compliance, and is part of the E.U. [AGILE](http://agile-iot.eu/) IoT consortium.

 * [Danube Tech](http://danubetech.com/) is collaborating with several other efforts to build blockchain-based identifier registration, data sharing, and messaging infrastructure.

 * [Scuttlebot](https://scuttlebot.io/) is a "blockchain identity" protocol avoiding a [singleton-based approach](https://scuttlebot.io/more/articles/design-challenge-avoid-centralization-and-singletons.html). It embraces subjectivity over consensus, e.g. each identity can publish messages that map their favorite pet name mappings for themselves and others. [Patchwork](https://ssbc.github.io/patchwork/) is a user-facing decentralized messaging and sharing app based on Scuttlebot.

 * Startup [Cambridge Blockchain](http://cambridge-blockchain.com/) is working on an Identity Blockchain for validating secure digital identity documents, processing electronic signatures, and recording transactions.

 * [Proof-of-Individuality](http://proofofindividuality.online/) addresses the challenge to prove that a person only has one account within a system, without sacrificing the advantages of anonymity/pseudonymity. See [here](https://medium.com/@unlisted/anti-sybil-protocol-using-virtual-pseudonym-parties-10276fcf3b20) for a draft implementation using "virtual pseudonym parties".

 * [Regis](http://regis.nu/) is a platform that makes it easy to build, deploy, and manage decentralized registries on the Ethereum blockchain.

 * [~~SingleID~~](http://singleid.com/) An app that allows you to be in control of their online identity. It provides safe logins with no registration and no password. 

 * [IDKeys](https://idkeys.net/) is a distributed global identity system that registers cryptographic public keys on the Stellar blockchain.

 * [CheapID](http://guptaoption.com/cheapid/) is a digital identity standard designed for use in conflicted environment like those many refugees or disaster victims may find themselves in.

 * [DIDs](https://w3c-ccg.github.io/did-spec/) (Decentralized Identifiers) are a new type of identifier intended for digital identity that is "self-sovereign", i.e, fully under the control of the identity owner. DIDs resolve to DDOs (DID descriptor objects) and can be registered in different blockchains (using different "methods").

 * An [article](http://www.gsma.com/personaldata/the-relationship-between-blockchain-and-digital-identity) by the GSMA about the relationship between blockchain and identity.

 * A snapshot of the [identity landscape](https://oneworldidentity.com/wp-content/uploads/2018/10/companies.png) by oneworldidentity.com.

 * [Authenteq](http://authenteq.com/) is an automatic identity verification platform that uses a facial recognition algorithm to create a digital identity on a blockchain.

 * [The Humanized Internet](http://www.thehumanizedinternet.org/) is building a prototype of an identity-as-a-service platform, relying on a blockchain system, to store legal IDs, property titles, education certificates, and medical records. 

 * [Deloitte SmartID](http://www.deloitte.co.uk/smartid/) uses Ethereum smart contracts to store, endorse, share, and revoke attributes, in order to enable users to automate digital processes such as customer registration and commercial KYC checks.

 * [Master thesis](http://essay.utwente.nl/71274/) about self-sovereign identity using blockchain technology by D.S. Baars.

 * The [Fermat project](http://www.fermat.org/) founded the [Internet of People](https://iop.global/), an open, decentralized infrastructure consisting of device-to-device communication, blockchain tokens, profile servers, and other components. "With the split from Fermat in June 2017, IoP switched from a centrally governed entity to a pure community project."

 * [Civic](https://www.civic.com/) is a secure identity platform using a blockchain and biometrics on mobile devices, in order to provide multi-factor authentication without a username, password, third party authenticator, or physical hardware token.

 * [Sphere Identity](https://sphereidentity.com) is a digital identity platform built on Hyperledger fabric, offering "chaincode" smart contracts and an API for third parties. It uses "XID" tokens based on the Bitcoin blockchain that are transfered upon successful identity transactions and trigger targeted advertising to the user. ([original whitepaper](https://github.com/mark-s/CryptoCoinWhitePapers/blob/master/Air_Platform_Whitepaper.pdf))

 * [Blockchain Helix](https://ico.helix-orange.com/) is building a platform that consists of "Identity as a Service", "Data as a Service" and "Blockchain as a Service". On this platform, different parties including individuals can manage and share both self-asserted and verified information. The company offers to increase the speed of KYC/AML processes while hughly decreasing the cost of onboarding. ([Whitepaper](https://ico.helix-orange.com/wp-content/uploads/2018/08/HELIX-Orange_Whitepaper_v1.5.pdf))

 * The [Pillar Project](http://pillarproject.io) is planning to offer a "Personal Data Locker" consisting of a wallet, browser, and token exchange. Personal assets will be put on a blockchain, and "Pillar" tokens will be issued.

 * [SecureKey Technologies](http://securekey.com/) and IBM are [partnering](http://www-03.ibm.com/press/us/en/pressrelease/51841.wss) to build a digital identity and attribute sharing network for Canadian consumers, using the permissioned, private Hyperledger Fabric blockchain.

 * [Consent](http://www.consent.global/) is building a platform for trusted personal data applications and services, using Ethereum smart contracts to implement decentralized identifiers, verified credentials, consent receipts, a web of trust, and exchange of assets and value.

 * [Mooti](https://mooti.co/) offers an "identity chain" technology that makes it possible to issue and revoke verified claims (e.g. governmental, medical, financial, etc.). The platform uses elliptic curve cryptography (curve25519, secp256k1) and includes privay-enhancing features e.g. to obfuscate issuers and holders of claims. A lightweight mobile client is available.

 * [Banqu](http://www.banquapp.com/) focuses on establishing "economic identity" for those who are excluded from the global economy. "Unbanked" individuals can use a blockchain to establish personal and financial records by connecting to their "banked" network (family, friends, small businesses, NGOs). This history of blockchain-based records helps to establish a baseline for future relationships with financial institutions.

 * [Vida Identity](https://getvida.io) is a blockchain identity and authentication platform that enables distributed key revocation and reissuance. Access to data is always permissioned across applications and services.

 * The [Mathematical Mesh](http://mathmesh.com/) allows people to create "profiles" to help them secure and link together their devices. [CryptoMesh](http://mathmesh.com/Technical/Architecture/index.html) is a proposal for a federated cloud infrastructure to support storage and retrieval of these profiles. Each portal provider in the CryptoMesh maintains a linked log (aka blockchain) of all the profile updates published to it. At regular intervals, each portal provider publishes the last output of the linked log as a "witness value".

 * [Spidchain](http://www.spidchain.com/) offers a platform for self-sovereign identity, including desktop and mobile apps for end-users. It uses Decentralized Identifiers (DIDs) - backed by optionally Bitcoin or Ethereum - to implement a marketplace for verifiable claims. The Spidchain applications allow individuals to create, recover, and revoke DIDs, to authenticate, to sign and verify files and claims, and more. ([Whitepaper](https://drive.google.com/file/d/0B89WE3IIHmy1Z0ZSSWVmVEtaaG8/view))

 * [Redd-ID](https://www.reddcoin.com/service/redd-id/) is a naming service that allows usernames to be registered on the [Reddcoin](https://www.reddcoin.com/) blockchain. Usernames are public and searchable. Usernames can be associated with rich information such as public and private user profile details. There is an ability to link usernames to social network identities. The system supports operations familiar from the DNS world, such as expiration, renewal, and transfer. ([Forum](https://www.reddcointalk.org/)) ([Whitepaper](https://www.reddcoin.com/papers/PoSV.pdf))

 * [Pro-civis](https://procivis.ch) offers an "e-government as a service" platform called "eID+". It enables citizens to get an official, electronic Citizen-ID on a mobile app, which can be used for secure and convenient login to websites, and the electronic signing and safe storage of documents. Verification providers such as state authorities can use a web backend or an API to attest to the correctness of a citizen's personal data. The platform includes the [VALID](https://valid.global/) wallet and marketplace.

 * [Cicada](https://github.com/the-laughing-monkey/cicada-platform) is a Dapp platform built initally for a "direct democracy" use case. It envisions using iris scans to generate decentralized universal identifiers ("HUIDs") for every human on the planet, a method referred to as "biocryptics". "HUIDs" can have "sub-IDs" to support selective disclosure. PII can be stored in an "info wallet". Key parts of the system also include smart contracts, zero-knowledge proofs, mixnets, and more.

 * ~~[ÆVATAR](http://aevatar.com/)~~ is a cooperative originating in France and established in several different countries that works on delivering self-sovereign identity technologies, using distributed ledger technology and verified claims. It is guided by various regulations and principles such as the GDPR, eIDAS, the UN's ID2020 objectives, and the CEN Workshop 84 standardization body. 

  * [ÆTERNITY](http://aeternity.com/) is a novel blockchain focusing on improved smart contract capabilities such as better scalability and easier integration of off-chain data. It uses value tokens called "aeons". It offers an identity architecture where every account has a unique ID number, and unique names can be registered and linked to arbitrary data such as addresses on the blockchain. Schema.org's data structures are used for representing data about persons and organizations. ([Whitepaper](https://github.com/aeternity/protocol))

 * [BitID](https://github.com/bitid/bitid) is a an authentication protocol based on Bitcoin identities, supported by some of the Bitcoin wallets. It authenticates Bitcoin addresses by signing a cryptographic challenge (delivered e.g. via a QR code on a website) using a Bitcoin private key. 

 * ~~[2WAY.IO](http://2way.io/)~~ is developing a peer-to-peer protocol for trust and identity on the Internet. It maintains "blockchain agnosticism", i.e. doesn't require but will be compatible with blockchain. Its architecture will be based on real-life social and economic structures of human civilizations. 

  * [VerifyUnion](https://verifyunion.io/) is building a platform for "unique user profiles" based on verified digital information, social profiles and financial details, leading to a "social score". Tokens based on Ethereum are designed to incentivize users to both supply and evaluate personal data for verification. ([Whitepaper](https://icoinform.com/uploads/pdf/9e1089c29a2bdc3d91584d72662b831d.pdf))

 * [Trusted Key](https://www.trustedkey.com/) is a self-sovereign digital identity platform based on Ethereum. It offers a secure mobile identity wallet and REST API web services that enable definitive user identity verification, password-less login, as well as identity fraud prevention via secure transaction and document signing. The design supports handling lost, stolen or new device scenarios without having to trust any other party.

 * [Tradle](https://tradle.io/) offers a "global trust provisioning network" to provide blockchain-based KYC functionality for both "intrabank" and "external" transfers. Mobile and web interfaces as well as bots are available for both customers and employees of financial institutions. 

 * [Nuggets](http://www.nuggets.life/) is a blockchain platform giving users a single biometric tool for login, payment and identity verification. It stores an individual's information in a "personal cloud" in "zero-knowledge blockchain storage". A mobile app allows using the camera to add physical identity and payment cards.

 * [SelfKey](https://selfkey.org/) is a self-sovereign identity technology stack with an open source identity wallet for the identity owner, a marketplace with real products and services, a JSON-LD protocol, connection to 3rd party identity micro services, and a native token called "KEY" which enables the SelfKey ecosystem to exchange value and data.

 * [Democracy Earth Foundation](http://democracy.earth/) is developing "Sovereign", a blockchain direct democracy tool using "vote" tokens to grant democratic participation rights to every human. A proof-of-individuality (POI) process based on peer-to-peer validation establishes that a self-sovereign identity is uniquely tied to a single person. The project introduces a number of interesting socio-technical concepts such as "Social Smart Contract", "Initial Rights Offering", and "Cryptographically Induced Equality". Cooperation is happening with other decentralized identity initiatives such as Blockstack and uPort.

 * [Taqanu](https://www.taqanu.com/) is opening the financial ecosystem for anyone by using a blockchain based digital ID to enable financial inclusion and create equal opportunities.

 * The [Illinois Blockchain Initiative](https://illinoisblockchain.tech/) is partnering with Evernym to develop a birth registry pilot, where self-sovereign identities are created, and government agencies issue "verifiable claims" for birth registration attributes such as legal name, date of birth, sex or blood type.

 * [Ockam](https://www.ockam.io/) is creating a ERC20 based platform that registers IOT devices to a blockchain to solve systemic security and interoperability problems.

 * [ERC725](https://github.com/ethereum/EIPs/issues/725) and [ERC735](https://github.com/ethereum/EIPs/issues/735) are proposals in the Ethereum community to standardize the use of smart contracts for certain identity-related operations such as key management, as well as signing transactions, documents, and "claims", which may be attested by third parties or self-asserted.

 * ~~[Boson.me](https://boson.me/)~~ is a user claims provider/verifier allowing third-party access through OAuth APIs and ERC725/ERC735 access. The data itself does not leak to external apps and stays in the hands of the user. The platform supports identity verification through social media accounts.

  * The [Verified Organization Network](https://github.com/bcgov/von) is an initiative by the government of British Columbia to create a trusted network of organizational data. It allows organizations to claim credentials that are part of their own digital identity, using a component called [TheOrgBook](https://github.com/bcgov/theorgbook) that lists entities with their associated public verifiable claims.

 * [Alastria](https://alastria.io/) is a non-profit consortium building a national blockchain ecosystem for Spain. The security and veracity of information will be ensured through the identification of natural and legal persons, while at the same time allowing citizens to have control over their personal information in a transparent way following the guidelines set by the European Union.

 * [Blockcerts](www.blockcerts.org) is an open standard for issuing and verifying blockchain-based official records, such as cvic records, academic credentials, professional licenses, workforce development, and more. The project offers  open-source libraries, tools, and mobile apps. MIT has [started to issue](https://www.insidehighered.com/news/2017/10/19/mit-introduces-digital-diplomas) digital certificates based on this standard.

 * [Kimlic](http://kimlic.com/) is a mobile app that uses a private blockchain as a source of truth for identity. It stores personal data on the mobile device and allows the sharing of verifiable identity claims and documents.

 * The [Datum](https://datum.org) network allows anyone to store structured data on a smart contract blockchain. Data can optionally be bought and sold on a marketplace using the DAT token. Datum leverages BigchainDB and IPFS as data storage backends. All data is encrypted and protected using AES256-GCM.

 * [Aversafe](https://www.aversafe.com/) allows individuals to store personal details, work history, certificates and achievements. It leverages a permissioned blockchain for trusted audit and participation in the storage of attestation data separate from the actual data stored on users' phones.

 * [QED-it](http://qed-it.com/) is building a platform for confidentiality on blockchain, using scalable zero-knowledge proof technology, in order to achieve decentralization, consensus, and confidentiality at the same time. This enables dynamic identity and "proof for all with data to no one".

 * [Syscoin](http://syscoin.org/) by [Blockchain Foundry](http://www.blockchainfoundry.co/) offers an identity system that associates "aliases" with data and public keys. Aliases can be used for native Syscoin services such as sending coins and encrypted messages. Aliases can also provide identity to Bitcoin and Zcash users.

 * [AID:Tech](https://aid.technology/) is a voucher and digital identity solution for refugees. A digital record of a person's identity is stored on a smart card, along with various additional information. Blockchain technology is used to distribute all resources in a highly traceable manner.

 * [Tierion](https://tierion.com/) offers an API that uses the [Chainpoint](https://chainpoint.org/) standard to record proofs on a blockchain that data was recorded at a specific time. Among many other uses, this includes the ability to anchor verifiable records of customer data to optimize KYC processes.

 * [PikcioChain](https://pikciochain.com/) is a proprietary network and blockchain architecture designed for the collection, certification and exchange of personal data. Individuals install mobile apps that act as servers in a decentralized network, and can earn Pikcio Tokens (PKC) by selling or certifying their data.

 * [ONTology](https://ont.io/) is a "Distributed Trust Network" which combines a cross-chain identity system, peer-to-peer data transmission, data authorization mechanisms, distributed data storage, attestation, and various industry-specific modules. It also includes an Ontology Crypto Package (OCP) and an Ontology Marketplace (OM).

 * [Persona](https://persona.im/) implements KYC processes using the [ARK](https://ark.io/) blockchain. Paper documents such as passports or bank statements are saved in IPFS using a "Persona Identity Dashboard". A "notary" then creates a hash of the content and publishes it on the Persona blockchain.

 * [Bloom](https://hellobloom.io) is a blockchain project for credit scoring and identity management that uses Ethereum and IPFS. Users create a "BloomID" contract that can be attested for by friends, family, and organizations. The "BloomIQ" system then reports and tracks debt obligations, resulting in a "BloomScore" as a metric of consumers' creditworthiness.

 * [Akarion](https://akarion.com/) offers a blockchain-bases SaaS product that helps companies to be GDPR compliant. All GDPR-relevant events are stored in a decentralized journal and visualized on a dashboard.

 * A [paper](https://cboxxtest.files.wordpress.com/2017/09/cboxxidentitymatters04.pdf) called "Identity Matters" by [CBoxx](https://cboxx.com/) about self-sovereign identity that gives an overview of the concept, humanitarian applications, as well as relevant projects, standards and communities in this space.

 * The [Rohingya Project](http://www.rohingyaproject.com/) is a grassroots initiative that looks to grant each Rohingya a personalized digital ID, and to tackle the problem of financial exclusion. It aims to make it possible to cryptographically prove one's existence and family relations, recorded on the blockchain.

 * [Keyp](https://keyp.io/) does not use blockchain, but still offers a self-sovereign digital identity infrastructure. A resource asks the user for specific attributes, which are stored in a wallet on a secure device. The wallet redirects the request to a specific "authenticator" that can validate the attribute.

 * The [I/O Digital Foundation](https://iodigital.io/) offers a Proof-of-Stake blockchain called Decentralised Input Output Name Server (DIONS). It will enable applications such as identity and alias registration, storage of legal documents, key exchange, and encrypted messaging.

 * [Dominode](https://dominode.com/) is building a self-sovereign identity solution based on IPFS and public blockchains that focuses on identity for professionals in regulated industries. Identity data can be verified to be true and is fully portable.

 * [UBIC](https://github.com/UBIC-repo/core) is a blockchain-based cryptocurrency that distributes a Universal Basic Income to participants after they scan the NFC chip of their E-Passport.

 * [BlockID](https://onekosmos.com/product-details/) by 1Kosmos offers an app that can validate photos of physical ID documents as well as record one's photo, fingerprint, and voice in a "trusted identity safe". It can be used to log in to websites and Windows desktop apps. Encrypted identity data is also stored on a blockchain for backup purposes.

 * [Veres One](https://veres.one) is a distributed ledger built for identity, supporting DIDs. It has a governance and economics model, and native support for DID Documents and Object Capabilities.

 * [Remme Auth](https://remme.io/) - Using a Hyperledger Sawtooth foundation, Remme implements a DPKI. Its blockchain playing the role of CA and supporting X.509 certificates either signed by the user, or an organization. ([github](https://github.com/Remmeauth))

 * [Juru](https://juru.io/) Core is an open platform where you can securely store and manage your Identity and Reputation. Today Juru Core is built on [Hyperledger Fabric and BigChainDB](https://github.com/juru-identity/dbh17), and runs on a permissioned private blockchain. The contributing nodes are hosted by all major banks, which act as reputable gatekeeper. It represents your identity and reputation using a smart contract, attributes can be added by the identity owner and are stored in hash form. Attributes and endorsements are formed of field sets, merkle-root hashes are used to allow sharing and verification of partial data.

 * [Shyft Network](https://www.shyft.network/) - supports the collection of users’ data off-chain using traditional databases and collection strategies with the ability to provide attestation points for third-party utilization. ([whitepaper](https://www.shyft.network/pdfs/Shyft-Network-Inc-Whitepaper_V3.1.pdf))

 * [MyEarth](http://myearth.id/) - MyEarthID will be the first decentralized Identity Management System (IMS) built on Hashgraph, where the user will own the ID that can be used for various purposes. Trust score kept based on user activity. ([whitepaper](http://myearth.id/wp-content/uploads/2018/04/Earth-ID-Updated-v1.1.pdf))

 * [hu-manity.org](https://hu-manity.org) is borderless and non-political and is responsible for championing choice and continuous consent to ensure people have a say as to how their data is used. 

  * [Hu-manity.co](https://hu-manity.co/) is the commercial part of the venture that is responsible for the creation and maintenance of the #My31 app.

  * [hu-manity.science](https://hu-manity.science) — is responsible for researching the convergence of social good and technological innovation. To find new ways where technology can solve real world problems. 

 * [Zulu Republic](https://www.zulurepublic.io/) is an ecosystem of blockchain tools, services, and platforms, designed as a place where people, businesses, and organizations can thrive on their own terms — a place where the real promise of the cryptocurrency revolution can be realized. Citizens of the Zulu Republic live anywhere and everywhere, united by a shared vision for a future of economic freedom and empowerment — of taking back our destinies from powerful centralized institutions. ([whitepaper](https://www.zulurepublic.io/whitepaper/))

 * [Blocknify](https://blocknify.com/) - for freelancers and small business to sign and securely send their documents to be signed without their papers touching any server at any time.

 * [Handshake](https://handshake.org/) - to replace centralized trusted internet infrastructure, with a decentralized Certificate Authority and globally unique namespace composed of a decentralized blockchain and cryptographic proofs backed by cryptoeconomic mechanisms. This construction enables the namespaces to point directly to a compact certificate representing a trust anchor which does not rely upon a single trusted authority to create attestations as in the existing federated Certificate Authority model. Handshake builds in compact verifiable proofs to ensure compatibility with embedded and mobile devices, with significant committed merkelized state proof-size and performance improvements. ([whitepaper](https://handshake.org/files/handshake.txt))

 * [Urbit](https://urbit.org/) is a virtual city of general-purpose personal servers. What's a personal server? In a sense, you already have one. Your personal server is the combination of all the cloud services you use now. This "server" is a mess. It's broken into 17 different fragments which are scattered all over the planet. You have no control at all over any of the pieces. The more we depend on Web services, the more we realize how unsustainable this situation is. ([docs](https://urbit.org/docs/)) ([ycombinator](https://news.ycombinator.com/item?id=11817721))

 * [Vetri Global](https://vetri.global/) is a self-sovereign, blockchain-based digital identity and personal data platform connecting identity owners with data consumers. Once completed, VETRI will operate as a not-for-profit, peer-to-peer, open source personal data management platform managed by the VETRI Foundation. The platform will consist of the VETRI wallet and the VETRI marketplace.

 * [Everest](https://everest.org/) combines EverID, a user-centric self-sovereign identity solution, with EverWallet, a value transfer and document storage solution, and EverChain, a robust transaction system to create and record all system transactions. This product suite is based on blockchain technology and the cryptographic underpinnings of that system. The core focus of the Everest operating company is to create economic and social value. ([whitepaper](https://everest.org/wp-content/uploads/2018/10/Everest_Whitepaper_Nov2018_v1.pdf))

 * The [Agrello](https://www.agrello.io/) Platform is a dashboard where you can manage your identity, create contracts, sign the contracts using Agrello legally binding signature and have an overview of all of your agreements

 * [Gataca](http://gatacaid.com/) delivers fast and secure customer on-boarding experiences by removing the burden of identity verification compliance from businesses. Our products, Verification SDK and NoPassword Sign In, enable fully automated KYC processes and simplify GDPR compliance.

 * [Clear.me](https://www.clear.me/) - Verified identity claims are digitally-signed by issuers, encrypted, and stored via the blockchain and decentralized systems. These claims could include complete know your customer (KYC) compliance, document authentication, or enable privacy through our unique anonymous verification protocol (AVP). We are also extending support for zero-knowledge proofs through zkSNARKs.

 * [POA Network](https://poa.network/) is an Ethereum-based platform that offers an open-source framework for smart contracts. POA Network is a sidechain to Ethereum utilizing Proof of Authority as its consensus mechanism. POA provides developers with the flexibility to code in Ethereum standards with the added benefits of POA Network's solutions to scalability and interoperability in blockchain networks. ([blog post](https://medium.com/poa-network/poa-network-how-honey-badger-bft-consensus-works-4b16c0f1ff94))

 * [Essentia](https://essentia.one/) is a modular decentralized system of interactions and data management based on a hybrid PoW/PoS consensus protocol. (Has a ESS-ID component central to its makeup but not deeply described in the [whitepaper.](https://essentia.one/files/en/essentia_blockchain.pdf))

 * [Digidentity](https://www.digidentity.eu/) You can add an eHerkenning to your Digidentity, but you can also use eSGNG for digital signing. With your Digidentity you can log in to websites or digital services and conduct your business securely and simply. "The EU member states have agreed that, as from September 2018, European citizens and businesses must be able to log in to all Dutch public sector organisations using their own national login scheme."

 * [LifeID](https://lifeid.io/) All PII such as name, date of birth, current living address etc., are never stored on the lifeID Platform. This information is encrypted and only stored on a secure device such as the person’s phone. ([whitepaper](https://lifeid.io/whitepaper.pdf))

 * [Usechain](http://www.usechain.net/) is dedicated to developing a public chain based on mirror identity, establishing an ecosystem based on identity public chain, promoting the implementation of all sorts of blockchain applications that links blockchain addresses to verified real users, and realizing close integration between social credit, infrastructure, and commercial use. ([project whitepaper](https://www.usechain.net/usechain_en.pdf)) ([tech whitepaper](https://www.usechain.net/usechain_tech_en.pdf))

 * [Ydentity](http://ydentity.org/) This ERC20 token has a purchase mechanism under BTC or ETH and is designed to address the main elements of General Data Protection Regulation (GDPR) in a time of technological advancement when the consumer has never been more aware of the value of their data. ([whitepaper](http://ydentity.org/doc/YdentityWhitePaper1.0.pdf))

 * [Digi-ID](https://www.digi-id.io/) is an authentication method based on the security of the DigiByte blockchain. This allows you to log in to a website, application, building security and more by simply scanning or tapping on a QR code. Digi-ID does away with the need for usernames and password, or it can be used to compliment them for additional security. ([github](https://github.com/digibyte/digiid-js)) ([docs](https://www.digi-id.io/documentation.html))

 * The vision of [0xcert](https://0xcert.org/) is to provide an open protocol for standardized and certified non-fungible tokens to a wider tech audience. With 0xcert, you can build on top of the non-fungible token standard, employing a complete toolset, development framework, and a set of conventions for various use cases. ([technical paper](https://0xcert.org/technical-paper.pdf)) ([whitepaper](https://0xcert.org/whitepaper.pdf)) ([github](https://github.com/0xcert))

 * [Graphchain](https://github.com/MakoLab/graphchain) Rather than trying to add Graphs and Ontologies to Blockchain, GraphChain starts with RDF database and then adds Blockchain features to the system. Legal Entity Identifier blockchained by a Hyperledger Indy implementation of GraphChain. [This paper](http://www.graphchain.io/MTSR2018.pdf) presents an implementation of GraphChain in the Hyperledger Indy framework. The whole setting is shown to be applied to the RDF graphs containing information about Legal Entity Identifiers (LEIs). ([slideshare](https://www.slideshare.net/sopekmir/graphchain))

 * [T-Mobile Unveils Identity Platform: Next](https://cryptoslate.com/t-mobile-next-identity-platform/) - [Hyperledger Sawtooth](https://github.com/hyperledger/sawtooth-next-directory) NEXT Identity Platform — In a company with millions of users with differing levels of service, permission management is a considerable bottleneck. Regulations around user security and privacy add a further layer of complexity to such a system.Next Identity combines the functionality of a traditional database with the benefits of a centralized ledger. The system handles user identities, accesses, and approvals while retaining the integrity of an immutable blockchain. ([press release](http://intelligentsystemsmonitoring.com/community/blockchain-community/t-mobile-unveils-the-next-identity-platform-a-blockchain-powered-database/))

 * [dock](https://dock.io/): Decentralized data exchange powered by Ethereum — By utilizing the secure Ethereum mainchain, data encryption, as well as a token model, the Dock protocol will allow users to take control of their data and exchange it between applications. The Dock token model will simultaneously motivate applications to exchange information by making it beneficial for both platforms involved in the transaction. ([whitepaper](https://dock.io/whitepaper))

 * [Herdius](https://herdius.com/) intends to build a new infrastructure layer on top of all blockchains. Through our vertically scalable chain and distributed virtual wallet network, Herdius aims to tackle identity & interoperability as well as create a crypto asset agnostic decentralized exchange.

 * [IXO Foundation](http://ixo.foundation/) - We are developing the mechanisms to share data-sets through software-mediated governance mechanisms, using the Ocean Protocol. Data resources will become locatable across any data store, using content-addressing, based on the Interplanetary Linked Data (IPLD) specification. The quality of these datasets will improve through the economic incentives and coordination capabilities of curation markets, as described by Simon De la Rouviere. ([whitepaper](https://ixo.foundation/wp-content/uploads/2018/08/ixo-Technical-White-Paper-w-Cover-Version-3.0-8-December-2017-1.pdf))

 * [Human Trust Protocol](https://www.hubtoken.org/)) - "Envision a world in which interactions and transactions between Internet strangers are supported by a new trust layer on the Internet enabled by the Human Trust Protocol. Reputation becomes self-sovereign under the control of users. With appropriate permissions, anyone will be able to assess the relevant trustworthiness of anyone else with whom they are about to engage, and users can transfer their trust from one community to any other. In short, there is an opportunity to rework the underlying incentive mechanisms of social networking and sharing economy services to create more trustworthy interaction." ([introduction](https://www.hubtoken.org/images/hub-introduction.pdf)) ([whitepaper](https://www.hubtoken.org/images/hub-white-paper.pdf))

 * [Holonet](https://simbol.io/) is an open source project that implements the Decentralized Identity Specifications for open [web VR platforms](https://www.roadtovr.com/decentralizing-identity-in-vr-with-holonet-self-sovereign-identity/) like WebXR.

 * [finID](http://finid.me/) is a mobile wallet and a transparent  EU compliant Trusted Services Provider powered by blockchain infrastructure  supporting self sovereign identity (SSID). Our goal is to  make  SSID compatible with the existing EU eID infrastructure.

 * [Crayonic](https://www.crayonic.com) ecure Digital Identity for People and Things. Crayonic develops a hardware module to secure digital identity. We refer to it as Crayonic Identity Core or CIC. CIC hardware module is running Crayonic Identity OS firmware which will soon  be open sourced. These two technologies combined are the basis for all identity projects within our company and soon it will be available to any one wishing to develop projects where secure identity plays a major role. This technology is protecting identities in all types of digital interactions:  person-to-person (P2P) , person-to-machine (P2M), machine-to-machine (M2M).

 * [Blockpass](https://www.blockpass.org/) is an identity application for regulated services and the Internet of Things (IoT). It is positioned as a first step towards the development of a fully self-sovereign identity protocol for the Internet of Everything (IoE). A self-sovereign identity application is a platform where users can establish, store, and manage identities whilst maintaining full control over all data involved. Data collected to establish a self-sovereign identity is not stored on any central server. Instead, the data is passed to the verifier (be it a machine or a human) to view only for so long as is required to create the identity. When the verification is completed, the data is sent back to the user’s own personal device. ([whitepaper](https://www.blockpass.org/downloads/BlockpassWhitepaper.v1.3.2.pdf))

 * [Ledgerstate](https://www.ledgerstate.io/) shapes their product to the end user's needs by not being tied to one specific decentralizing technology. Instead, they pick from the best technologies to create a tailored application for each use-case. Some of the technologies used include: Hashgraph, Yoti, Ethereum. "We make decentralization and the blockchain simple." 

 * Yoti, the [digital identity platform](https://www.businesswire.com/news/home/20180125005600/en/Yoti-LedgerState-Showcase-Next-Generation-Blockchain-Technology-Transform), lets people create verified digital identities through their free smartphone app. The app uses facial recognition technology and a security team to match facial biometrics to approved photo IDs. These digital identities can then be written to a private ledger using an evolution of blockchain technology called Hashgraph.

 * [KeeeX](https://keeex.me/) Deploys Bitcoin [BIP32 Self Sovereign Identity](https://keeex.me/keeex-deploys-bitcoin-bip32-self-sovereign-identity/) - KeeeX seals trusted metadata in your files to ensure integrity, source and date. Our universal technology makes digital security accessible to everyone and allows you to protect all your file formats. Your data has value and is easily trackable thanks to a unique identifier. It embeds the link between your documents, your processes and event ledgers (Blockchain, off-chain register). You are no longer dependent on an infrastructure or Blockchain, all the proofs are in your data. [BIP32](https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki) hierarchical deterministic wallets can be used to self define, publish, and revoke a cryptographic identity. This identity can be used to generate one time signatures for every item signed, hence achieving unprecedented signature security.

 * [CULTU.RE](https://cultu.re/) is blockchain governance and self-sovereignty for an interplanetary society: UNIVERSAL CITIZENSHIP ID. A program for self-sovereign identity systems, empowering community stewardship over centralized ownership. Universal Love Agreements provide couples around the world with a way to register and verify their union *on their terms* without the need for third party interference to complicate agreements or prevent individuals from their engagement. UNIVERSAL HOUSING NETWORK Register tangible property or virtual land and objects on the blockchain at zero-cost. In addition to recording permanent ownership, users can list temporary habitats on the network as freespace for various cultures and citizens to play in and create community.

 * [iov42.com](https://www.iov42.com/) - iov42 is a technology provider [accelerating financial and non-financial](http://bbfund.com/wp-content/uploads/2017/10/BBFund_geninfo_oct2017.pdf) transactions based on cutting-edge artificial intelligence and Blockchain technology. iov42 is the solution for banks and other participants to reduce transactional & compliance costs, increase profit & liquidity, and offer revolutionary new products, as well as for FinTechs around the globe to generate new revenue streams. 

 * [SIGND.ID](https://signd.id/): Smart contracts and identity sharing by SignD make onboarding, contracts, KYC, ad hoc insurances as simple as saying „Hello“!

 * [Cryptonomica.net](https://cryptonomica.net) is an identity verification service based on [OpenPGP](https://en.wikipedia.org/wiki/Pretty_Good_Privacy) and [Ethereum](https://www.ethereum.org) with legal framework and online dispute resolution for electronic contracts from London-based [court of arbitration](https://cryptonomica.net/#!/arbitration).

 * [myIDsafe](https://myidsafe.org/) is a consortium of major Austrian companies that are collaborating to build a self-sovereign identity ecosystem based on DIDs, Hyperledger Indy, and other technologies.

 * [KILT](https://kilt.io/) is a blockchain and protocol that allows attesters to issue digital claims to users, who can then present them to verifiers. Claims are stored in a user's wallet. Claims are signed, and a checksum is stored on a blockchain.

 * [Diode](https://diode.io/) is developing a blockchain-based decentralized PKI for resource constrainted devices. The system is implemented with a new super-light client protocol for Ethereum called BlockQuick.

 * [SOWL](https://esatus.com/sowl/) formerly known as [SeLF](https://self-ssi.com/) is a next-gen identity & access management software that connects legacy authorization sources like LDAP, Active Directory, Azure AD, SCIM and JDBC to Self-Sovereign Identity technology using Hyperledger Indy/Aries and provides SSO IDP features (SAML/OAuth/OIDC) over SSI as well. SOWL was developed by [esatus AG](https://esatus.com).

 * [Ceramic](http://ceramic.network/) is a peer-to-peer verifiable storage graph that anchors updates in a blockchain, providing for scalable publishing, linking and querying of identity information and links that can be used on any network. It supports the [IDX](http://idx.xyz/) identity index standard and [3Box](http://3box.io/) distributed data framework 

 * [IDENA](https://idena.io/) is a Proof-Of-Person blockchain that provides a validation method that is pseudonymous and based on attending regular validation ceremonies in which the user needs to solve a series of "flip-tests". A flip is a sort of AI-hard captcha that helps to determine whether a user is human. The Idena protocol solves the blockchain oracle problem: Its independent mining nodes can act as oracles across various blockchains. Idena accounts are compatible with Ethereum.

 * [Kuwa](http://kuwa.org/) is an experimental Ethereum-based identity platform designed to support basic income distributions. Kuwa can leverage social graphs combined with voice and face recognition to detect Sybil attacks. Kuwa's "poker protocol" is to designed to support permissionless implementations.

 * [BrightID](https://www.brightid.org/) is a personal stamp of uniqueness. It uses the people you know (a trust graph) to enforce one-account-per-person for important applications like voting and universal basic income. A BrightID proves you’re a unique person.

 * [@Unik-Name](https://unik-name.com) offers Human-readable names protected against typo-squatting and fraud, minted as self-sovereign digital assets on the UNS blockchain. @unik-name can be used to authenticate yourself on your favorite (centralized) websites as a highly secure drop-in replacement of Google or Facebook social logins, but preserving your privacy and your anonymity. UNS blockchain is the first [ARK](https://ark.io/) bridgechain implementing the [Non-Fungible-Token concept](https://github.com/ArkEcosystem/AIPs/issues/70).

 * [Validated ID](https://www.validatedid.com) is a trust service provider that offers digital signature services and provides a SSI solution for entities and users. This latter is conformed by [VIDchain API](https://www.validatedid.com/vidchain) which enables entities to issue credentials and validate presentations and VIDwallet which enables users to hold their credentials securely. VIDwallet is available for [Android](https://play.google.com/store/apps/details?id=com.validatedid.wallet) & [iOS](https://apps.apple.com/es/app/vidwallet/id1554340592).

 * [GoPlausible](https://GoPlausible.com) is a W3C-compliant SSI, DIDs, and VCs issuance and registrar service, powered by [Algorand](https://algorand.com) blockchain and IPFS. A complete [universal DID resolver](https://goplausible.xyz/did-resolver) implementation based on [DIF]([https://dif.org](https://identity.foundation/)) directives is provided as well. [Here is an example](https://goplausible.xyz/api/page/bafkreiboqnnyy5a7fgxrccwfye4g7nzz2eaxg3f4e4yiwzpqeuqvtrbtt4#) issued Verifiable Credential immutable page. The verification service for DIDs and VCs is implemented through a collaboration by [Gora (The next-gen oracle service)](https://gora.io). The PLAUSIBLE protocol is Web 2.5 and makes it easy for Web 2.0 users, entities and services to enjoy blockchain features out of the box for issuance, distribution, claiming, and verification of DIDs and VCs in a decentralized, permission-less, and immutable way.