
Blockchain
What is blockchain?
Blockchain is a secure, transparent information storage and transmission technology that operates without a central control unit. It is based on a distributed, immutable register, structured in the form of chained blocks and validated by a network of computers called nodes.
Blockchain is based on several principles:
- Decentralization: Unlike traditional databases, blockchain is managed by a distributed network of interacting participants, with no central authority.
- Transparency: In the case of public blockchains, all registered transactions are visible and verifiable by all network participants.
- Immutability: Once a block has been validated and added to the chain, it becomes virtually impossible to modify or delete it.
- Security: Each transaction is validated by cryptographic mechanisms, ensuring the integrity and authenticity of these transactions.
- Authorization: Transaction validation and compliance are based on consensus protocols ensuring agreement between network nodes (Proof of Work, Proof of Stake...)
What are the types of blockchain?
There are different types of blockchain, each with its own operating procedures:
- The public blockchain, for example, is accessible to all, such as Bitcoin and Ethereum.
- Private blockchain, on the other hand, is controlled by an organization or consortium, with restricted access granted by the controlling entity(ies).
- The hybrid blockchain combines the functions of private and public blockchains, so that only limited data is controlled.
In this way, blockchain guarantees efficient, transparent and secure transactions, facilitating financial operations.
Our latest news and insights

Societe Generale Named "World's Best Bank for Transaction Banking" by Global Finance
Societe Generale has won a series of 6 awards from Global Finance, including the awards for World's Best Bank for...
Societe Generale has won a series of 6 awards from Global Finance, including the awards for World's Best Bank for...
Awards & Rankings
Societe Generale has won a series of 6 awards from Global Finance, including the awards for World's Best Bank for Transaction Banking, Best Bank for Financial Institutions in Western Europe, and Best Cash Management Bank in France, Cameroon, and Senegal.
Societe Generale Named "World's Best Bank for Transaction Banking" by Global Finance
BESS – Emerging Asset to Essential Infrastructure
The recent closing of the substantially merchant battery financing, Constantine, along with the Zenobe led-Eccles...
The recent closing of the substantially merchant battery financing, Constantine, along with the Zenobe led-Eccles...
Expert views
The recent closing of the substantially merchant battery financing, Constantine, along with the Zenobe led-Eccles project have drawn attention to the development of the Battery Energy Storage Systems (BESS) asset class. These transactions highlight an increase in the number of financings in Europe, particularly in the UK.
BESS – Emerging Asset to Essential Infrastructure 
Powering the growth of the European zero-emission bus market
Transportation is one of the key sectors where significant reductions in greenhouse gas emissions can be achieved. In...
Transportation is one of the key sectors where significant reductions in greenhouse gas emissions can be achieved. In...
Clients' successes
Transportation is one of the key sectors where significant reductions in greenhouse gas emissions can be achieved. In Europe, for instance, electric buses can lower CO2 emissions by 63% compared to diesel buses over their lifetime(1). Solaris Bus & Coach, a leading urban bus manufacturer in Europe, has partnered with a consortium of banks, including Societe...
Powering the growth of the European zero-emission bus market
More results