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Secure payment Paypal

We help protect buyers, sellers, businesses and all online payments. Spend and receive money around the world. Protection of purchases and merchants PayPal protects you during your transactions.

To protect you against bank fraud, we use the best encryption methods available on the market. In case of problems, your eligible purchases can be reimbursed by our Purchasing Protection. And if your purchase does not please you, we can also refund your return costs.

If you do not receive your item, or it does not correspond to the description of the seller (other color, broken object ...), PayPal can refund you. This protection is free and valid in France and abroad (subject to conditions).

For more information, please visit our terms of service

How to do ?

To report a dispute, you must log in to your PayPal account. You have 180 days from the date of payment. If the seller does not answer or if you can not find an amicable solution, you can turn the dispute into a claim within 20 days. By opening a claim, you ask us to make a decision for you. We then review your file and verify your eligibility for a refund in accordance with our Terms of Use.


All items that can be shipped and are not prohibited by law may be covered. Here are some examples of cases where we will intervene: you bought a book but received a DVD, you bought a new object but received a second hand object, you bought 3 objects but only received 2, l object was damaged during delivery, missing important parts to the object (not mentioned by the seller), you bought an authentic object but received a counterfeit. If the seller was precise in its description but the object does not suit you, the Protection of Purchases does not apply.

Program exclusions

The Protection of Purchases does not cover real estate, vehicles, and objects not authorized by our regulations (generally prohibited by law also). Payments of items delivered by hand and the sending of money between relatives are also not covered.

We protect your account

You are not responsible for unauthorized purchases made from your account if you report an eligible incident within 60 days. This means that in the event of unauthorized use of your account, we can refund you.

Refunds in case of problems

In case of unauthorized transaction with your PayPal account, you are not responsible for the purchase if you open a dispute within 60 days. In case of problem with a seller, you can also ask us to intervene. If your purchase meets the conditions of our Protection, we will refund you.

A responsive helpdesk

In case of unauthorized transaction, claim or any other difficulty you encounter, we help you find a solution.

Contact our Customer Service.

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.

Create account

The certificate of authenticity is the essential key to the good sale of your works. You must provide a certificate of authenticity to the buyer (even if he does not claim it) accompanied by the invoice of sale of your work.

Without certificate of authenticity no door can work; no estimate, no transaction. The certificate of authenticity is mandatory to establish that a work is authentic and has been done by the Artist

No recognition in a catalog raisonné of the financial value of the work. Without a certificate of authenticity, it is impossible to evaluate the work, its only value depends on its size, technique, materials used and the subject represented.

What is a certificate of authenticity?

A certificate of authenticity is a document necessary for the attribution of a work of painting, sculpture, photography to an artist. Important information: an invoice can not stand as a certificate of authenticity.

The value of a certificate of authenticity?

The value of a certificate of authenticity comes from the notoriety of the person who writes it, when the latter is recognized at the time of writing the certificate by all professionals, as the most competent for this subject or for this artist.

What is a certificate of authenticity for?

For collectors, asking for and obtaining a certificate of authenticity allows you to:

1. Establish the identity and authenticity of the artwork
2. Keep track of the origin of the coin acquired
3. Quickly evaluate its value over time, especially if the artist is or becomes sideways
4. To guarantee its authenticity and value when reselling

For artists, providing a certificate of authenticity allows you to:

5. Ensure the authenticity of your creation
6. Facilitate the future of the work and its identification
7. Offer a valuable service to your buyers
8. Gain credibility with your community

The Artcertificate Blockchain

Certificat Blockchain

Artcertificate offers artists and professionals to create and register certificates of authenticity which will then be integrated into the Blockchain on the Ethereum network. A specific option allows you to transfer any certificate on the Blockchain with a simple 'click'.

What is: Artcertificate Blockchain?

It is a fully managed blockchain registration service that facilitates the creation and management of a scalable blockchain network and distributed ledger technologies applied to COA Certificates of Authenticity. All COAs can be registered on the blockchain with a single click and obtain a certificate of authenticity on the Artcertificate Blockchain (COABC).

Decentralized management:
A blockchain allows Artcertificate to perform COA Certificate of Authenticity registrations where different members of the network can perform register authenticity checks without having to resort to a reliable central authority (Control outside Artcertificate). Each party, known as a member, has a peer node in the network.

Artcertificate Blockchain supports a reputable blockchain framework.

Ethereum is ideally suited for highly distributed blockchain networks, where data transparency of all members is an important factor and allows all network participants to independently verify a user's activity among all members. Ethereum also makes it possible to join a public Ethereum blockchain network.

The ledger is decentralized and is managed by an Ethereum blockchain distributed among members. The control of registrations is independent of Artcertificate. The registration of COAs is carried out at the specific request of the applicant.

Certificat Blockchain



Register for free !

1 premium certificate offered upon registration!
+ 3 certificates offered with the first order
+ 1 free certificate of deposit!

Create a certificate of authenticity

The first is free, the following cost between € 1.50 and € 2.50

Get Your Artist Rating

Artcertificate issues you a quotation certificate for only € 14.50