9. Conclusion

Blockchain technology was born with Bitcoin, which remains today the major application and the most remarkable example of its implementation. However, it has become apparent that alongside the success of this particular blockchain, many variants are possible, some more complex and powerful (Ethereum), some simpler (private blockchains), some avoiding the power consumption of proof-of-work thanks to proof-of-stake, and some less speculative (stablecoins). This has given rise to a vast array of methods and applications, which are being perfected with inspiration drawn directly or indirectly from Satoshi Nakamoto's unexpected creation.

There is no doubt that these new technologies will play a decisive role in today's networked world, where tools that enable secure exchanges of information, value, and trust will be the keys to progress. In the medium term, we will see...