Blockchain: Traceability, Notarisation and Smart Contract Solutions
Ensure trust and transparency across your ecosystems with sovereign, business-focused blockchain expertise.
In an environment where data is at the heart of value, blockchain technology is emerging as an essential driver of trust. At Coexya, we support businesses and institutions in integrating decentralised solutions to secure transactions, automate processes and meet new traceability requirements (DPP, ESG).
Our Blockchain Solutions for Your Business Challenges
1. Traceability & Digital Product Passport (Transparency Solution)
Designed for CSR and supply chain departments, our Transparency solution enables you to track the origin and journey of your products from start to finish.
- Response to the DPP (Digital Product Passport): Stay ahead of European regulations by creating a tamper-proof digital twin.
- ESG Commitment: Demonstrate your ethical and environmental claims to your customers and regulators.
- Supply Chain Management: Connect with your suppliers and collect certified evidence in real time.
2. Notarisation & Data Integrity (Tediji Solution)
Data recorded in a blockchain-type distributed ledger is time-stamped, digitally signed and cannot be altered. This makes it a powerful tool for creating digital evidence, in compliance with the eIDAS 2024 Regulation on electronic registers.
For CIOs and legal managers, we therefore provide bespoke or large-scale notarisation services via our Tediji SaaS solution, guaranteeing the existence and integrity of your digital documents at any given point in time.
- Electronic signatures: Roll out electronic signatures on a large scale within your organisations whilst benefiting from reduced costs thanks to blockchain
- Fraud prevention: Certify your qualifications, intellectual property documents, contracts or audit trails.
- Compliance & Sovereignty: A GDPR-compliant approach (storing evidence rather than personal data) on trusted infrastructures.
- Proof of immutability: Ensure non-repudiation of your critical exchanges without a centralised trusted third party.
3. Tokenisation & Automation
Coexya and its parent company Talan are market leaders in the provision of technical services for digital assets.
In compliance with MiCA regulations, work with us to accelerate your transformation by taking advantage of our technical services relating to digital assets and asset tokenisation, as well as the controlled execution of smart contracts on public or permissioned blockchains.
- Digital assets: Use stablecoins and other tokenised financial products to optimise your cash management and payment methods
- Asset tokenisation (RWA): Digitise real-world assets to streamline transfers of ownership and access new financial markets
- Smart Contracts: Automate your business processes (conditional payments, execution of logistical clauses) to reduce disputes and processing times.
- Energy efficiency: Recognised expertise in low-carbon blockchains.
The 4 pillars of digital trust with Coexya
Why choose blockchain for your critical processes? Our approach is based on four key benefits that transform your IT infrastructure into a strategic asset:
Immutability and Integrity
Once recorded, data cannot be altered or deleted. This puts an end to doubts about the authenticity of your certificates, audit reports or production records.
Transparency and Auditability
Provide your partners (suppliers, auditors, regulators) with a ‘single source of truth’. Every transaction is traceable in real time, radically simplifying compliance checks.
Decentralisation and Resilience
By removing the need for a central third party, you reduce single points of failure. Your data exchanges are secured by the network, ensuring constant availability without major technological dependencies.
Intelligent Automation
Thanks to Smart Contracts, your business rules are executed automatically (payments on delivery, validation of logistics stages). You eliminate manual data entry errors and accelerate your operational cycles.
End-to-end support for your Web3 strategy
As a leading systems integrator, Coexya does more than simply supply technology; we build sustainable solutions that are interoperable with your existing IT systems (ERP, CRM, IoT, Core Banking).
- Consulting and Strategic Scoping
Our experts help you identify use cases with a high return on investment. We analyse the business opportunity, select the most suitable protocol (Public, Private or Hybrid) and define the network governance.
- Custom Development & Integration
From prototyping (PoC) to production deployment (MVP), we develop your decentralised applications (dApps). We are experts in the leading frameworks on the market: Hyperledger Fabric, Ethereum and other EVM layers, Tezos, and Solana.
- Operation & Maintenance (TMA)
We ensure that your blockchain nodes remain in operational condition and that your smart contracts are secure, guaranteeing complete service continuity. Coexya has been hosting and operating blockchain nodes 24/7 without interruption since September 2020!
FAQ: Everything you need to know about blockchain in business
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/ 1. What are the practical benefits of blockchain compared to a traditional database?
The difference lies in governance and immutability. Whilst a traditional database is managed by a single entity that can modify the data, blockchain ensures that no information can be altered once it has been recorded.
Coexya’s expertise: We use this technology to create a ‘single source of truth’ shared among multiple partners (suppliers, customers, auditors), thereby eliminating the need for manual reconciliation and the risk of fraud.
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/ 2. Is blockchain technology compliant with the GDPR and the right to be forgotten?
This is a major concern for CIOs. The answer is yes, provided a hybrid architecture is adopted. Personal data is never stored directly “on-chain”, only its digital fingerprint (the hash).
Coexya’s expertise: Our notarisation and traceability solutions strictly comply with the GDPR. In the event of a deletion request, the source data is erased from your servers, rendering the fingerprint on the blockchain unreadable and thus anonymised.
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/ 3. How can blockchain help demonstrate my CSR commitments?
Blockchain enables the creation of a Digital Product Passport (DPP). It records every stage of a product’s lifecycle, from raw materials to recycling, in a tamper-proof manner.
Coexya’s expertise: With our Transparency solution, we help CSR departments transform their sourcing evidence (certificates, labels, origin) into an auditable digital trust asset, thereby protecting the brand against greenwashing.
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/ 4. Is it possible to integrate blockchain into my current IT system (ERP, CRM)?
Yes, blockchain does not replace your existing tools; it connects to them as an additional layer of certification.
Coexya’s expertise: We develop secure APIs that enable your software (Office 365, ERP, CCM solutions) to communicate natively with the blockchain. This allows, for example, an invoice to be triggered automatically as soon as proof of delivery is recorded on the network.
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/ 5. What will be the environmental impact of a blockchain project in 2026?
Not all blockchains are created equal. Modern ‘Proof-of-Stake’ protocols consume 99% less energy than older generations such as Bitcoin.
Coexya’s expertise: We prioritise eco-friendly and sovereign infrastructures (such as Tezos with our Tediji offering). We support our clients in selecting protocols whose carbon footprint aligns with their decarbonisation targets.
Why choose Coexya for your blockchain project?
- Sovereignty: A leading French player and member of the Talan Group.
- Multi-sector expertise: Public sector, industry, healthcare, finance.
- Pragmatic approach: We turn ideas into industrial reality with a vision focused on business benefits.
Ready to secure your digital future? Contact our experts for a demonstration of our solutions.
