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How do crypto-assets work? 

Cryptocurrencies are forms of value that exist in the digital world. They are based on cryptography, a mathematical science that makes transactions secure and limits the risk of unauthorised access. However, it is important to note that despite these security measures, challenges remain, including the potential risk of cryptojacking and similar threats. These digital assets operate on a technology called blockchain, a digital ledger recording all transactions in an open and unalterable way.  

Steps in the operation of crypto-assets:  

1/ The transaction 

A user sends a transaction, which is a proposal to transfer crypto-assets, using their private key to sign it securely.

2/ Distribution 

The signed transaction is broadcast on the blockchain network and awaits verification. 

3/ Verification

Network participants, often called miners or validators, check the legitimacy of the transaction by ensuring that the crypto-assets have not been used twice and that the signature is valid. 

4/ Addition to the blockchain

Once the transaction has been verified, it is included in a block with other transactions. For a block to be officially added to the existing chain of blocks, known as the blockchain, all the participants in the network must agree, also known as “consensus”. This consensus is reached through a process called “mining” for some cryptocurrencies. Miners use the computing power of their computers to solve complex mathematical problems, or by “proof of stake”. Validators are chosen according to the number of currencies they hold and are prepared to “freeze” as collateral. These methods are used to confirm transactions securely and maintain the integrity of the blockchain. 

5/ Transaction validation

Once a transaction has been approved and added to the blockchain, it is considered confirmed. The crypto-assets involved in the transaction are then transferred from one party to the other. This updated information is then replicated on all the computers participating in the network, known as “nodes”. These nodes act as individual verification points that maintain copies of the blockchain and work together to ensure that all information is accurate and consistent everywhere.  

Key features of crypto-assets 

Cryptography 

Crypto-assets use cryptographic methods, which is a mathematical science that aims to secure transactions and information by converting them into a secret code.  

Blockchain

A distributed register that records all transactions transparently and immutably.

Decentralisation

There is no central authority and the network is maintained by a large number of independent participants spread around the world. 

Consensus

Consensus rules ensure that all participants agree on the current state of the blockchain. 

Transparency with Pseudonymity  

All transactions are public, but users are identified by computer addresses rather than their real names. 


Cryptocurrencies or digital currencies are terms commonly used in the crypto ecosystem. However, the terminology favored by regulators (ACPR and AMF) is crypto-assets or digital assets. This distinction arises because, although often referred to as cryptocurrencies, these assets do not qualify as currencies in the legal sense. They are virtual resources based on blockchain technology, whose value is determined solely by supply and demand.

None of the information contained in this FAQ constitutes investment advice, tax advice, legal advice, or any other type of advice, nor does it serve as an invitation to engage in any form of financial transaction.

Investing in digital assets carries risks and may not be suitable for all investors. It is the responsibility of investors to educate themselves about the risks associated with different digital assets. In particular, it is noted that digital assets can exhibit significant volatility, and investments in digital assets involve a risk of capital loss. Accordingly, it is important to remember that the past performance of digital assets, as might be indicated on Banque Delubac & Cie’s website or in documents provided to investors, is not indicative of future performance. Investors should familiarize themselves with the technologies underlying each digital asset and their associated risks, including vulnerabilities, defects, hacks, errors, protocol failures, or attacks on the protocol. Banque Delubac & Cie cannot be held liable for any misunderstanding of the risks associated with digital assets or for any losses investors may incur due to errors in wallet addresses attributable to the investor.

Most frequently asked questions

What is cryptocurrency mining?
Cryptocurrency mining is the process by which new transactions are added to the blockchain, the technology that underpins cryptocurrencies. This mining process is a bit like panning for gold in a mine, but in the digital age. The term mining was chosen in reference to the similarity of extracting resources [...]
Cryptocurrency mining is the process by which new transactions are added to the blockchain, the technology that underpins cryptocurrencies. This mining process is a bit like panning for gold in a mine, but in the digital age. The term mining was chosen in reference to the similarity of extracting resources [...]

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What is blockchain? 
Blockchain is a technology for storing and transmitting information. It is a complete database, containing the entire history of exchanges between users since its creation. Each block is a list of transactions containing a cryptographic fingerprint of the previous block, creating a continuous chain of chronologically linked blocks. The blockchain [...]
Blockchain is a technology for storing and transmitting information. It is a complete database, containing the entire history of exchanges between users since its creation. Each block is a list of transactions containing a cryptographic fingerprint of the previous block, creating a continuous chain of chronologically linked blocks. The blockchain [...]

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How does blockchain technology work?
Blockchain technology records data in a decentralised and transparent way, using a computer protocol organised by consensus into a chain of blocks. The blockchain is like a large shared ledger.   Popularised by crypto-currencies (crypto-assets or digital assets) such as Bitcoin, it works through a mechanism called "mining", carried out by miners. [...]
Blockchain technology records data in a decentralised and transparent way, using a computer protocol organised by consensus into a chain of blocks. The blockchain is like a large shared ledger.   Popularised by crypto-currencies (crypto-assets or digital assets) such as Bitcoin, it works through a mechanism called "mining", carried out by miners. [...]

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What is cryptocurrency? 
Cryptocurrency, also known as crypto, cryptoassets or digital assets, is a form of "virtual currency". However, a crypto-asset is not a currency from a legal point of view. It is a new financial system based on blockchain technology that enables secure, decentralised electronic transactions. These digital assets use cryptography to [...]
Cryptocurrency, also known as crypto, cryptoassets or digital assets, is a form of "virtual currency". However, a crypto-asset is not a currency from a legal point of view. It is a new financial system based on blockchain technology that enables secure, decentralised electronic transactions. These digital assets use cryptography to [...]

Read more