Intro

I created this website to try to explain what bitcoin is using a different approach. All explanations introduce bitcoin as a digital currency, a (crypto) currency based on a distributed blockchain database (ledger). I would like to change the initial point of view and describe bitcoin as a distributed database of the blockchain type, where… Continue reading Intro

1. What really is bitcoin

Bitcoin is a decentralized database whose transactions are irreversible and written data considered immutable. This database is freely accessible to all through an open protocol with known specifications  and open source code. Anyone can read the data of this database or contribute to making it secure by validating transactions. Every 10 minutes the network validates… Continue reading 1. What really is bitcoin

3. Probably you don’t need a blockchain. But if you need it then you need bitcoin

We don’t like Bitcoin, we like the blockchain. How many times have you heard this phrase? Many influential people, interviewed in recent years, have often repeated the mantra: we don’t care about bitcoin, but we have an interest in the underlying technology, the “blockchain”. It is often repeated for one or more of the following… Continue reading 3. Probably you don’t need a blockchain. But if you need it then you need bitcoin

4. How secure and immutable is the bitcoin blockchain?

Bitcoin is the most widespread cryptocurrency. Its blockchain is the one with the greatest number of validator nodes (full nodes, which have the entire validated blockchain in memory) and the one with the greatest computing power in the field in validating transactions (mining). One blockchain is no more secure than another based on different technical… Continue reading 4. How secure and immutable is the bitcoin blockchain?

5. Does Bitcoin consume too much energy for every single transaction?

Does Bitcoin consume too much energy for every single transaction? Short answer No, because Bitcoin is the core network (Bitcoin is THE BLOCKCHAIN) of potentially infinite low-power networks that rely on its cryptographic guarantees and its resistance to attacks. A bitcoin transaction can therefore correspond to a very high number of operations on a layer… Continue reading 5. Does Bitcoin consume too much energy for every single transaction?