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What is the Blockchain?

What is the Blockchain?

Blockchain is a technology for storing and transmitting information, transparent, secure, and operating without a central control body (defined by Blockchain France). It is the technology at the heart of the Decentralized Web and its corollary, decentralized finance.

By extension, a blockchain is a database that contains the history of all the exchanges made between its users since its creation. This database is secure and distributed: it is shared by its various users, without an intermediary, which allows everyone to check the validity of the chain. There are public blockchains, open to everyone, and private blockchains, access and use of which are limited to a certain number of actors.

A public blockchain can therefore be likened to a public, anonymous and tamper-proof accounting ledger. As the mathematician Jean-Paul Delahaye writes, one has to imagine 'a very large notebook, which everyone can read freely and for free, on which everyone can write, but which is impossible to erase and indestructible. '

Locate the blockchain
The first blockchain appeared in 2008 with the digital currency bitcoin, developed by an unknown man using the pseudonym Satoshi Nakamoto. It is the underlying architecture.

While blockchain and bitcoin were built together, today many players (companies, governments, etc.) are considering the use of blockchain technology for other purposes than digital currency.

How does it work?
Any public blockchain necessarily works with a programmable currency or token. Bitcoin is an example of a programmable currency.

Transactions between network users are grouped into blocks. Each block is validated by the nodes of the network called “miners”, according to techniques which depend on the type of blockchain. In the bitcoin blockchain this technique is called “Proof-of-Work”, proof of work, and consists of solving algorithmic problems.

Once the block is validated, it is time stamped and added to the blockchain. The transaction is then visible to the receiver as well as the entire network.

This process takes a certain time depending on the blockchain we are talking about (about ten minutes for bitcoin, 15 seconds for Ethereum).

The potential of blockchain
The decentralized nature of the blockchain, coupled with its security and transparency, promises much broader applications than the monetary domain.

The use of the blockchain can be classified into three categories:

1. Applications for the transfer of assets (monetary use, but not only: securities, votes, shares, bonds, etc.).

2. Blockchain applications as a register: it thus ensures better traceability of products and assets.

3. Smart contracts: these are stand-alone programs that automatically execute the terms and conditions of a contract, without requiring human intervention once started.

The fields of operation are immense: banks, insurance, health and pharmaceutical industry, supply chain of many sectors (agri-food, luxury goods, international trade, distribution, wines, aeronautics, automotive, etc.), music industry, energy, real estate, voting, etc.

Above all, blockchain paves the way for a new web, the decentralized web, and a new digital economy, the token economy. To understand what is at stake, it is crucial to avoid cartoons about cryptoassets, which are at the heart of this revolution.

Obviously, these promises are not without challenges, whether they are economic, legal, governance, or even ecological.

The certificate of authenticity


When selling one of your works, in order to be more professional and offer all the guarantees to your buyer, the artist must provide a certificate of authenticity.

A certificate of authenticity is a document necessary for the attribution of a work. Your customers will be very sensitive to this particular attention that values you as an artist and guarantees the authenticity of your works. Without a certificate of authenticity, it is impossible to evaluate the work according to its provenance or to relate it to an artist. Its only value depends on its size, technique, materials used and the subject represented.

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When artists sell their work, they must provide a Certificate of Authenticityin order to be more professional and give all the guarantees to the buyer. A Certificate of Authenticity is essential for the attribution of a work.

Without a Certificate of Authenticity, it's impossible to determine the artwork's origin or to attribute it to an artist. The only value it has will depend on its size, the technique, the materials, and the subject represented.

A Certificate of Authenticity is the key to the successful sale of your works. You must provide a Certificate of Authenticity to the buyer (even if he or she does not ask for one) along with the invoice.

Without a Certificate of Authenticity, most doors will remain closed; no estimate, no transaction. A Certificate of Authenticity is mandatory to establish that a work of art is authentic and has been created by the Artist.

No mention in a raisonné catalog about the financial value of the artwork. Without a Certificate of Authenticity, it's impossible to evaluate the artwork, its only value depends on its size, its technique, the materials used and the subject represented.

What is a Certificate of Authenticity?


A Certificate of Authenticity is a document that is used to attribute a painting, sculpture or photograph to an artist. Important: an invoice cannot serve as a Certificate of Authenticity.

What is the value of a Certificate of Authenticity?



The value of a Certificate of Authenticity depends on the authority of the person writing it, if he or she is recognized by all professionals as the most competent for this subject or artist at the time the certificate is written.

What is the purpose of a Certificate of Authenticity?


Requesting and getting a Certificate of Authenticity allows collectors to:

1. Establish the identity and authenticity of the artwork of art
2. Keep a record of the origin of the acquired artwork
3. Quickly assess its value over time, especially if the artist is or becomes popular
4. To guarantee the authenticity and value of the artwork when it is resold

Providing a Certificate of Authenticity allows artists to:

5. Ensure the authenticity of their creation
6. Facilitate the future of the artwork and its identification
7. Offer a valuable service to your buyers
8. Build credibility within your community

Artcertificate's Blockchain



Certificat Blockchain


Artcertificate allows artists and professionals to create and register certificates of authenticity which will then be included in the Blockchain on the Ethereum network. A specific option allows the transfer of any certificate to the Blockchain with one click.

What is: Artcertificate Blockchain?

It's a fully managed Blockchain registration service that facilitates the creation and management of a scalable network of blockchain and distributed registry technologies used for COA Certificates of Authenticity. All COA's can be registered on the blockchain with one click and get a certificate of authenticity on Artcertificate's Blockchain (COABC).

Decentralized management:
A blockchain allows Artcertificate to create COA certificate of authenticity records where different members of the network can check the authenticity of the records without the need for a reliable central authority (Control is done outside of Artcertificate). Each party, known as a member, has a peer node in the network.

Artcertificate Blockchain uses a reputable block chain framework.

Ethereum is perfect for highly distributed block chain networks, where the transparency of data from all members is important and allows all participants in the network to independently verify the activity of every member. Ethereum also allows us to join a public Ethereum block chain network.

Advantages:
The register is decentralized and managed by an Ethereum blockchain that is shared among the members. The control of the registrations is independent from Artcertificate. The registration of the COA is made following the specific request of the applicant.

Certificat Blockchain

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