To keep it very simple and concise, Blockchain is a continuously growing list of information stored together into blocks (registries of data), which are cryptographically secured, linked (in chronological order) and distributed across a network of computers.
Thanks to this decentralization mechanism, every computer in the network has an updated copy of the blockchain. So even if the major part of the network is disabled due to unfortunate events, the records will remain available and secure on other computers of the network.
All information written on a blockchain are therefore: secured, reliable, transparent, immutable and liable.
Land tenure is the legal system that rules on :
Currently 70% of the world’s population has no access to conventional land registration/tenure systems. Worldwide, less than 32 countries give access to their citizens to a functioning, nationwide, centralized land administration that encompass local registration systems.
European Union General Data Protection Regulation (EU GDPR) looks for increasing of ID standards that modern Digital ID solutions need. Governments showed the willingness to use blockchain technology to confer identities to “unidentified” people in developing countries and to protect citizens’ personal identification information in developed countries.
Blockchain technology offers the following advantages:
Decentralized Public Key Infrastructure (DPKI)
In this series of blog posts, we will briefly present the major issues related to the digitization of identification documents and how blockchain technology can contribute to it.
Digital ID in a decentralized environment can be used in many ways, for exemple:
Blockchain technology by developing the concept of decentralization allows users to create and manage digital identities through :
What is Digital Identity?
A digital identity results from the use of personal information and from the data created by individuals when using online services that can be traced back to the him.
A digital identity may be a pseudonymous profile created online, photos uploaded to social media, posts created or commented on, online bank account, search engine history…. …
Identification is an essential part of a functioning society and economy. Having a proper and efficient way to identify ourselves and our possessions allows us to create a fair society and a prosperous global market.
At its simplest level, identity is a collection of information about an individual, place, or thing.
For individuals, this is usually names, date of birth, nationality and national identifiers such as birth certificate, passport number, social security number, driver’s license, etc.
These data are issued by centralized entities (government agencies and/or private companies) and are mainly stored in centralized databases (central government servers, etc.).
In order to be sure not to compromise any of your precious ada, your wallets must be downloaded from official and secure sources.
At Proof of Africa, we recommand you to install one of those 2 wallets :
- Yoroi, developed by EMURGO for a light Wallet,
- Daedalus, developed by IOHK for a full node of the Cardano blockchain. With it, you will run a passive node on your computer (without producing blocks) and you keep a copy of the entire blockchain.
In this tutorial, we will show you how to download and use the Yoroi wallet within the Firefox…
To better understand what incentives and how the Cardano protocol uses them to secure the network, please have a look on our former article.
To operate and secure its network, the Cardano blockchain uses “Proof-of-stake” in which the block validator and producer is randomly chosen by the blockchain algorithm depending on some criteria.
To become a validator, a block producing node must lock a certain amount of ada into the network as stake (which can be seen as a security deposit). …
Selon IOHK, «l’un des objectifs de conception du mécanisme incitatif de Cardano est d’aligner le mieux possible les incitations monétaires sur le respect du protocole: si chaque partie prenante suit ses propres intérêts ﬁnanciers, le système devrait réussir à se stabiliser. Si possible, il ne devrait jamais y avoir de conflit d’intérêt entre maximiser ses récompenses et «faire ce qu’il faut» pour faire fonctionner correctement le protocole ».
Comme discuté en détail dans un précédent article, la blockchain Cardano utilise un protocole de consensus PoS pour différentes raisons de sécurité et d’efficacité.
Comme vous le savez probablement, la blockchain Bitcoin…
According to IOHK, “A design goal of the mechanism is to align monetary incentives as perfectly as possible with protocol adherence: If every stakeholder follows their own ﬁnancial interests, the system should settle into a desirable state. If possible, there should never be a conﬂict of interest between maximizing rewards and “doing the right thing”.
As discussed in detail in a previous article, Cardano blockchain uses a PoS consensus protocol for several security and efficiency reasons.
As you probably know, Bitcoin blockchain uses the “proof-of-work” (PoW) algorithm which pushes everybody participating in the network to compete to mine new blocks…
Teacher, development projects facilitator & crypto-enthusiast