The #blockchain is like a public digital book đ that everyone can consult, but no one can secretly modify.
It is a technology for storing and transmitting information:
âĄïž secure,
âĄïž transparent,
âĄïž and decentralized (it does not belong to a single entity).
đ How does it work?
â
Each transaction is recorded in a "block" đ§©.
đ Blocks are linked together chronologically = block + chain.
đ§ The whole thing is validated by a network of computers (called nodes) through mechanisms like proof of work or proof of stake.
đ Once added, data cannot be modified. This is called immutability.
đĄ Why is it important?
Because blockchain allows the creation of:
trustless systems without intermediaries (like banks or notaries),
direct exchanges between users (P2P),
open and verifiable ledgers for everyone.
đ¶ In summary:
Blockchain is a technological revolution that can transform finance, healthcare, administration, art, and much more... And it's not reserved for experts!
đ€ And you?
Had you ever heard of blockchain? Which part seems the most unclear to you? Ask your question in the comments đ