The highest score is given for the answer “c”. And if you don’t know why, go to Google 🙂
Bitcoin appeared in 2009, or rather – January 3, 2009, when the first block of Bitcoin was generated. Remember this date and celebrate it every year!
However, ideas of creating cryptocurrencies appeared in the last century.
Satoshi Nakamoto is:
Fabled Satoshi Nakamoto is the founder of Bitcoin.
You can mine:
If you think that any cryptocurrency can be mined, try to mine Ripple, NEO or EOS 🙂
Altcoins are alternative coins, it is a common name of all cryptocurrencies except the first and unique Bitcoin.
Smart contacts first appeared:
For the first time, the technology of smart contracts was applied in practice in Ethereum network which was created by Vitalik Buterin. However, the idea of smart contracts first came into not his mind, but into Nick Szabo’s mind – a scientist in the field of cryptography and computer science.
Cryptocurrencies can be:
Cryptocurrencies are commonly associated with decentralization, but there are some exceptions – Ripple, which is controlled by Ripple Labs, or NEO which is closely associated with OnChain – a Chinese IT company.
Cryptocurrencies are based on the technology of:
Indeed, cryptocurrencies are based on encryption methods, that is, cryptographic data protection. In particular, asymmetric encryption is applied in cryptocurrencies.
*Want to learn more about encryption? Read our blog.
The most disadvantageous deal with Bitcoins is:
Those who bought Bitcoin for $ 20,000, of course, still cry, alas. But imagine what the American Laszlo Hanyecz feels, who bought a pizza for 10 000 Bitcoins on May 22, 2010; that time 10 000 Bitcoins cost about $ 40. By the way, don’t forget to celebrate “Bitcoin Pizza Day” on May 22 – buy and eat pizza 🙂
Is it true that blockchain is absolutely invulnerable?
If you firmly believe in the absolute invulnerability of blockchain, you are a naive crypto-idealist 🙂
Theoretically, the blockchain can be hacked if at least 51% of the network’s computing power is concentrated in the hands of a single person or corporation. And in practice, the blockchain can be hacked using a quantum computer powerful enough.
What are post-quantum encryption algorithms?
Fortunately for the whole crypto community, post-quantum encryption algorithms already exist, and they are resistant enough even to a quantum computer.
Do you know what the Quantum Apocalypse is?
Perhaps someday a quantum computer will really take over the world, and then will explode because of overstretching :-))) But before that happens, a quantum computer will hack into all the modern blockchains. And first of all, the Quantum Apocalypse will come for cryptocurrencies that don’t have post-quantum protection.