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This website is the digital home, private blockchain, auction platform and network of artist @ESRAC.

The platform designed and maintained by artist @ESRAC (César Ramos) integrates a high-end Primary Market for original artworks and a secure Secondary Market with verified provenance through Cryptographic Custody and a Private Blockchain.

Platform Features

  • 🛡 PRIVATE BLOCKCHAIN: A cryptographic system to guarantee the provenance of Certificates of Authenticity (CoA).
  • 🏛️ AUCTIONS: A professional system to participate in private transparent online auctions to acquire unique artworks.
  • 🌐 ART NETWORK: A private social space to connect with art collectors.
  • 📩 MESSAGING: Direct messages to facilitate networking and private negotiations within the community.

Private Blockchain

The Private Blockchain is a public electronic register that is maintained and managed directly by the artist (@ESRAC) to guarantee the integrity of all Certificates of Authenticity (CoA) of all artworks by @ESRAC, through Cryptographic Custody. Our Private Blockchain uses the Secure Hash Algorithm (SHA-256) to create a Digital Fingerprint for each certificate that is a chain of digital signatures starting from the Artist (@ESRAC). Even if the CoA is lost by its owner, our Private Blockchain is able to confirm the ownership of all @ESRAC artworks. Any buyer interested in acquiring an artwork by @ESRAC in the secondary market can verify the chain of ownership via our Cryptographic Custody Tool (Verify a CoA). The public can see in our platform that someone has acquired an artwork by @ESRAC in the chain of ownership but without linking the transaction to anyone (i.e. without telling who the parties were). This proposed system to record the chain of historical ownership of all artworks by @ESRAC do not rely on trust. It is robust in its simplicity and will guarantee actual ownership of all artworks for decades. 

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Policies, Terms of use and Code of Ethics and conduct

Our operations are guided by a strict legal and ethical framework. We encourage you to read our internal policies.

  1. Selling and Auction Policy
  2. Shipping Policy
  3. Payment Policy
  4. Return Policy
  5. Resale Royalty Right Policy
  6. Terms of use and Privacy
  7. Code of Ethics and Conduct

Website | Frequently Asked Questions

Art Market | Guidance | Support

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Contact / Support

  • Contact Us
  • Administration: This platform is maintained and managed directly by the artist @ESRAC.
  • Direct Contact: 🌐 Official languages for user communication: 🇬🇧 🇫🇷 🇪🇸 🇧🇷.