Senin, 12 Februari 2018

Persona - the safest blockchain-based identity management solution

What is persona

Persona is a blockchain-based identity management solution that allows individuals to easily update their shared data with third parties and reduce the efforts of corporate clients to keep their data up-to-date.

Persona uses ARCH blockchain technology and other state-of-the-art technologies to offer secure and complete identity solutions. This product complies with GDPR requirements and provides secure storage, sharing and data processing.

Persona is designed as a decentralized app without a single point of failure, storing all encrypted records Individuals have control over the details of the details they want to share, with whom they share and for how long. With the launch of Bitcoin at the end of 2009, Satoshi Nakamoto offered a glimpse of the technology that underlies its network decentralization, blockchain.

The main goals of Persona are:
  1. To ​ leverage on identity management services​ for the individual based on what the blockchain technology can offer
  2. T ​o​ protect individuals personal details​. While it is obvious that individuals need to provide their details to various entities(Facebook, Google or any website they visit), they have no control over it after sharing. Persona puts individuals back in the driver seat
  3. To ​empower each person​ and to give them the power on what it shares and with whom when it comes about their identity and private details
  4. To ​allow entrusted third parties which with private details​ to enrich their services by offering trust as a service
  5. To ​prevent fake news​, by providing a decentralized identity management system, Persona will provide the trust level we all need when we rely on news; based on the public Persona profile of any content creator, we can track down news to their source
  6. To​ streamline onboarding process​ since an individual might be already checked by some entity enrolled in the system


Persona is designed as a decentralized application with no single point of failure, keeping all records encrypted. The individuals have the control over the granularity of the details they want to share, with whom they are sharing it and for how long. With the launch of Bitcoin in late 2009, Satoshi Nakamoto offered a glimpse of the underlying technology that powers its decentralized network, ​ the​ blockchain​.

The main strong points which the blockchain technology offers are :
  1. Replace the middleman:​ There is no need anymore of a trustful side, one that can be and is trusted by both sides involved in a transaction
  2. Decentralization:​ there is no single point of failure, while attacking the network is virtually impossible
  3. Immutability:​ a record written on the blockchain is there forever, unalterable


Persona leverages the blockchain features, allowing a company to offer KYC services to third party as well as benefiting from each other’s services. The verification process has two levels: Community and Professional KYC.

Persona KYC Types

The first level is represented by the ​community​ where the identity is checked by peers. It represents a common effort, where people are encouraged to validate each other’s identity. They will have to confirm the authenticity of documents and identity of the people applying to be checked.

The people who offer verification services will be displayed on the Persona website. They will be rewarded for the verification services by receiving PRS. The threshold for verifications is illustrated below.

The instructions are divided into several levels, based on the number of verifications they provide. The maximum percentage a person can get with verified by the community is 90%. The remaining 10% can only be achieved once a private partner (institution, utility provider or company) acknowledges the validity of the data.

Based on their Persona activity and shares, the individual who verifies the service to someone else, can go up to 30%. This means one can only see 3 people who can offer a 30% approval rate to achieve a 90% verification rate.

Technology and Architecture

Blockchain Design

According to the UK Government, the distributed ledger technology is already having a profound impact on how private companies manage data and interact with customers and suppliers. If applied within government it could reduce costs, increase transparency, improve citizens’ financial inclusion and promote innovation and economic growth.
The Persona Blockchain represents a DPoS system with 51 delegates which makes use of the Ark technology (Persona is a fork of ARK, following ARK’s vision of​ approach). The number of delegates has been set to 51 in order to support the estimated number of nodes and transactions for the first year.
If the number of Pesona users will increase to a value greater than 1,000,000, an update proposal will be published and discussed in the community so the number of delegates can be increased. This approach is taken in order to ensure the necessary scalability for Persona. Based on the technical description of the ARK blockchain is as follows:
  • DPoS (Delegated Proof of Stake):
              - 51 active forging Delegates
              - Delegates selected by vote mechanism built into DPoS
  • 100 Million PRS — Seeded Genesis Block
  • Multi-signature accounts
  • The block reward and inflation graph are illustrated below

Token Design

The PRS token is an utility token that is used by the platform in order to issue verifications. For each verification PRS tokens are used. The tokens circulate in the environment and they will be forged through a DPoS system with 51 delegates, similar to Ark.
When verifications take place and the initiator is a private partner, they will pay PRS tokens for the verification. The verification price will differ based on the complexity of the verification.

Allocation of Token Sales

The Token Sale for Persona will take place following the phases illustrated below:

The seeded number of tokens will be 100,000,000. ​ The price for one PRS token during the TGE is $0.2.​ The total allocation is:
  • 70,000,000 PRS​ allocated for the TGE
  • 15,000,000 PRS​ allocated for the team composed of the co-founders. The tokens allocated to the team will be vested over a three-year period, split into yearly payments as following:
- 10% at Genesis;
- 30% after 12 months;
- 30% after 24 months;
- 30% after 36 months;
  • 12,000,000 PRS​ allocated for the Persona Startup Fund;
  • 1,000,000 PRS​ allocated for the advisors. The tokens allocated for the advisors will be vested over a period of 6 months;
  • 1,500,000 PRS​ allocated to the bounty.
  • 500,000 PRS​ allocated for the escrow services (performed by ​Ark​)
There are ​70,000,000 PRS​ allocated to the TGE, split into one Private Sale and a three-phase Public Sale, as explained below:

Distribution token


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