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Digital Identity for a mobile world


Digital Identity for a mobile world


1.5 billion people without an official ID


4 billion people without an address


6 billion people with a mobile phone by 2020


About 1.5 billion people worldwide do not have an official proof of identity. For this reason, they lack access to basic services like insurance, loans or mobile communication.

Our mission is to allow anyone to create a secure, self-sovereign digital ID based on personal data. On the fly, using any mobile phone on the market, no matter the telecom operator or type of phone.

Through our mission, we not only aspire to augment existing identification protocols by making them more efficient and secure for the entities requesting valid identification and other information, but also more importantly, to empower populations at the Bottom of the Pyramid with access to do their own data wherever they are, whenever they want, with whoever they wish to share it with and on their own terms.

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The g-ID is based on personal data that is verified through peer-to-peer and third-party validation. The more data and validation checks, the more reliable it is.



All personal data is stored on a decentralised database and can only be accessed with consent from the Gravity ID owner. The platform fully complies with the European Personal Data Protection law (GDPR). You can find out more about the measures we take to protect our users’ privacy by reading our Personal Data Charter.

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The service is accessible from any mobile device through a USSD menu or Smartphone App




Proportional identity scoring

We challenge the existing binary identity paradigm (ID / NO ID) which restricts access to services at the Bottom of the Pyramid. Thus, instead of a binary identity, the relying party receives a proportional ID score that reflects the quality of the users’ ID attributes and the trust of the entities that submitted them. In addition, the relying party can also request specific ID data and thus perform an identity check augmented with personal data which improves service delivery.

User-centered design for maximal inclusion

Our platform has interfaces for basic phones via a USSD menu. It doesn’t depend on other infrastructure like biometric scanners, but users can authenticate themselves using their voice. Additionally, any individual can sign up and incrementally build a trusted identity over time by adding credentials.

Self-sovereign, secure & provider independent

Data is stored on a decentralized database that can only be accessed and shared by the ID holder or their guardian. This also gives the individual the possibility to monetize and leverage data for the rest of their life. Empowering the individual with complete ownership and access permission control over their data lies at the core of our mission at Gravity.

Leveraging & digitizing existing social validation mechanisms

We digitize several approaches that are already used in local communities to establish ID. For instance, in order to obtain an ID card in Kenya, an individual who doesn'thave a birth certificate can alternatively provide a written endorsement from the village chief or priest. By leveraging existing mechanisms of establishing proof-of-existence in local communities, we not only facilitate a quicker adoption of our solution but also leverage the confidence that individuals have in these existing mechanisms.

Local footprint

Our presence on the field in Nairobi puts us in a unique position by giving us access to local partners across Africa and an in-depth understanding of their needs and contexts.