Traceability with blockchain: more transparency in supply chains and public processes

In a context where trust and transparency are differential values, blockchain-based traceability has become a strategic tool to certify the origin, integrity and validity of products and documents. Blockchain allows each milestone in a value chain to be recorded chronologically and immutably, creating a shared and verifiable record.

As a result, businesses, administrations and individuals can access the same reliable information history, without relying on intermediaries and with a full guarantee of authenticity.

In a global, digital marketplace, traceability not only provides control, but also trust and reputational value by providing verifiable evidence of an organisation's responsible behaviour.

Traceability consists of following the complete path of a product or document throughout its life cycle: from its origin to its final destination. It allows you to identify what happens at each stage, who is involved and with what result.

It is a key element in sectors such as food, fashion or public administration, where knowing origin and authenticity is essential for ensuring quality, safety and regulatory compliance

Blockchain acts as a shared ledger of records, distributed among several participants and cryptographically protected. Each event - a production, a transaction, a certification - is stored in a block linked to the previous ones, forming a chain that cannot be altered without leaving a trace.

In this way, all stakeholders in a value chain can consult the same information, knowing that it is complete, verifiable and auditable.

Immutable registration and verification of events

Each milestone is registered with a timestamp and digital signature. This immutable traceability enables real-time process auditing, error or fraud detection and automatic reporting. In addition, smart contracts can automate verifications or authorizations, reducing administrative time and costs.

Preventing forgery and ensuring authenticity

Decentralization of data prevents manipulation. This means that a product or document can be linked to a unique identifier (a QR code, NFC tag or digital certificate) that accompanies it throughout its life cycle. This makes it possible to check their authenticity instantly and makes forgery or duplication difficult, both for physical goods and electronic documents.

Food safety and origin control

Companies such as Carrefour already use blockchain to record and show consumers the full journey of products such as free-range chicken or olive oil.
By scanning a QR code, the customer can access detailed information about the origin, production and transport of the food. This model improves food safety and enhances trust by providing full transparency about what is being consumed.

Authenticity of high-value products (luxury, art, fashion)

The luxury industry has also embraced blockchain as an ally against counterfeiting.
Solutions like SigneBlock's make it possible to give every item, from jewellery to a bottle of premium wine, a smart label linked to the blockchain. This allows any buyer to verify authenticity and provenance in seconds, protecting both brands and consumers.

Documentary control in public procedures and digital public procurement In public administration

Blockchain makes it possible to register documents, certificates or contracts with full legal validity.
Alcobendas City Council, for example, has used blockchain to ensure the integrity and transparency of citizen votes in its participatory budgets.
On a large scale, the Blockchain Services Infrastructure of Spain (ISBE) will boost the digital certification of documents, contracts and subsidies, offering traceability, security and efficiency in administrative processes.

In conclusion, for businesses, blockchain traceability means efficiency, cost reduction, automated compliance and better risk management. It allows processes to be audited in real time and more transparent relationships to be built with customers and suppliers.
For individuals, it means greater security, trust and access to verifiable information about the products they consume or the services they use.

ISBE is the driving force behind this model. This national network - secure, interoperable and compliant with European regulations (RGPD, eIDAS2, NIS2, Data Act) - will allow companies and administrations to deploy traceability, authenticity and secure certification solutions with legal and technical support.
ISBE represents a decisive step towards a more transparent digital ecosystem, where trust is built on verifiable and shared data.