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Welcome to Bit2Me Academy!
Here you will find a lot of articles with which you will learn the main concepts of the crypto world.

Basic

Best crypto card in Spain: what to look for before choosing one

What to look for when choosing a crypto card in Spain: regulated issuer, conversion, fees, cashback, limits and security, without comparing brands or rankings.

José Maldonado September 7, 2026

Basic

Taxation of shares in Spain: taxation and the two-month rule

Taxation of shares in Spain: savings base, personal income tax brackets and the two-month rule (art. 33.5 LIRPF) explained step by step, with examples.

José Maldonado September 7, 2026

Basic

ETFs to generate income: fixed income and dividends

Fixed income ETFs and dividend ETFs: two ways to generate regular income. Compare risks, taxation, and accumulation vs. distribution before choosing.

José Maldonado September 4, 2026

Basic

ETF vs. investment fund: key differences and which one to choose depending on your situation

ETF vs investment fund: key differences and which one to choose depending on your situation and how to get the most out of both.

José Maldonado September 4, 2026

Basic

ETFs vs stocks: advantages of instant diversification

ETFs or individual stocks? Discover the key differences, when each option is right for you, and how the instant diversification of ETFs changes the game.

José Maldonado September 3, 2026

Basic

What is $KULA?

KULA is the governance token of KulaDAO, a project that converts land, mines, or hydroelectric dams into digital assets that can be voted on by its community.

José Maldonado September 1, 2026

Basic

The major global indices to invest in: SP 500 vs MSCI World

The S&P 500 and the MSCI World, head to head: what each index includes, their UCITS ETFs in Spain, the TER, taxation and which one fits best in your portfolio.

José Maldonado August 28, 2026

Basic

Crypto loan or sell: what's best depending on your situation

Crypto loan or sell your crypto assets: compare tax implications, exposure and liquidation risk with objective criteria and a quotable table.

José Maldonado August 28, 2026

Basic

Ethereum Staking: A Practical Guide to Getting Started

Discover how Ethereum staking works, its slashing risks, and how to get started step by step: your own validator, platform, or liquid staking explained.

José Maldonado August 27, 2026

Basic

Sector and thematic ETFs: technology, healthcare, energy, AI and semiconductors

Sector and thematic ETFs focus your investment on technology, healthcare, energy, or AI. Discover their risks, differences, and how to evaluate them before investing.

José Maldonado August 27, 2026

Basic

ETF vs index fund: differences and which one is right for you

ETF vs index fund: We compare stock market trading, fees, taxation in Spain, minimum investment, and liquidity to help you decide how to invest for the long term

José Maldonado August 26, 2026

Basic

Corporate treasury in cryptocurrencies: first steps

Guide for CFOs and treasury managers on cryptocurrencies for companies: applicable MiCA framework, institutional custody, accounting and governance.

José Maldonado August 26, 2026

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FAQ

Find resolved questions about Bitcoin.

Bitcoin was the first crypto-based digital currency. It was created by Satoshi Nakamoto with the aim of becoming a digital currency for the exchange of value between peers, without the government of a central entity (that is, without the intervention of banks or governments). All Bitcoin transactions are recorded on a public ledger (the blockchain) and anyone with a computer and internet connection can download and install a Bitcoin node. If you would like more information on the articles What is Bitcoin? y How does Bitcoin work?They delve you into everything related to this cryptocurrency.

Bitcoin was created with the goal that people could send money to each other in a decentralized way. Bitcoin is an alternative to traditional payment systems, as it operates free from third party control. In summary, Bitcoin is a form of payment between peers, with a decentralized operation. Why use Bitcoin?is part of the free short course on Bitcoin fundamentals

To buy Bitcoins, you need to register with a cryptocurrency exchange, such as Bit2Me and follow the necessary steps to buy Bitcoin using a credit card or bank transfer. You can find a more detailed, step-by-step answer to this question in the article about buy Bitcoins.

In November 2021 it reached a maximum of €56.278,52 and the maximum in 2022 was €42.782,72 reached on March 29. You can check the charts against the € at https://pro.bit2me.com/exchange/BTC-EURand in relation to USDT in https://pro.bit2me.com/exchange/BTC-USDT

Bitcoin was created by Satoshi Nakamoto. The name is a pseudonym and his true identity is unknown. Nakamoto went public with his invention on October 31, 2008, by sending the Bitcoin whitepaper to a mailing list of cryptographers. In 2009 he published the first version of the Bitcoin client and was working on it for a while (along with other developers like Hal Finney) until 2011, when he disappeared and left the project in the hands of others. You can also meet the people most closely linked to the .Satoshi Nakamoto's identity in the article about the usual suspects.

Bitcoin mining is the process by which new units of this cryptocurrency are created and the legitimacy of transactions in its decentralized network is verified. Miners use special, powerful computers to solve complex math problems that validate transactions on the network, and receive a reward in the form of Bitcoin for their work. To know about the history and the mining process of Bitcoins you can expand your knowledge starting with the articles about how to get bitcoin.

The Bitcoin Halving is an event that occurs approximately every four years, and consists of halving the amount of Bitcoins that can be obtained by mining. This event is programmed into the Bitcoin protocol and aims to control inflation and keep the Bitcoin supply in check. Each halving halves the reward miners receive for solving the math problems needed to validate transactions. Learn a little more: https://academy.bit2me.com/que-es-halving-bitcoin/.

When Bitcoin reaches its maximum limit, which is 21 million units, no more Bitcoins will be created. At this point, the reward miners receive for validating transactions will be based solely on the transaction fees users are willing to pay. This is expected to increase the value of Bitcoin, as the supply will be limited and the demand will continue to grow. The issuance of Bitcoins, their guarantees and more curious facts about the number of Bitcoins in this article about the Bitcoins that may be.

As of March 2023, there are approximately 18.8 million bitcoins in circulation. The maximum supply of bitcoins is set at 21 million, and the last bitcoin is expected to be mined in the year 2140. You can read the reason for this in the article about "How many Bitcoins can there be".

To buy BitcoinsYou must register on a cryptocurrency exchange platform, such as Bit2Me and follow the necessary steps to buy Bitcoin using a credit card or bank transfer. You can also expand to learn what the... detailed steps to buy Bitcoin.

Muchos merchants are beginning to offer the possibility of paying with BitcoinIn many cases, you'll need to have your Bitcoin wallet set up (containing enough Bitcoin to make the payment), and then simply send the payment to the seller's address, specifying how many bitcoins you're sending. Remember that if you use this method, you should always double-check that the address you're sending to is correct. You can also pay with Bitcoin using a debit card, such as Bit2Me Card. In this case, you just need to link the card to your Bitcoin wallet, make sure you have enough funds, and pay, just like you would with your regular card.

The Bitcoin mining process involves solving complex mathematical problems by using specialized hardware to validate transactions on the blockchain and receive a reward in the form of Bitcoin. You can find the extended answer to this question in our article on how new bitcoins are created.

The Bitcoin price fluctuates constantly due to market fluctuations. You can check the real-time updated quote on different websites, such as CoinMarketCap or TradingView. You also have the possibility to see the graph of its relationship with the Euro in https://pro.bit2me.com/exchange/BTC-EUR.

Bitcoin is a cryptocurrency that has managed to become the most popular and with the highest market capitalization. However, its legality is complex to define and depends on the laws of each country. Although few countries prohibit its use, Bitcoin is not a legal tender in most countries, which means that its users are not protected by a government. In Spain, Bitcoin is not illegal, but there is no formal regulatory framework for its use and regulations have been established regarding the issue of taxes. The European Union is approving a set of rules that will bring order to the world of cryptocurrencies known as the mica law.

Bitcoin transactionsThey are the transfer of Bitcoins between two Bitcoin addresses. These transactions are recorded on the Bitcoin blockchain, which is an immutable, public ledger. Each transaction is validated by nodes on the Bitcoin network and is confirmed when it is added to a block on the blockchain. Bitcoin transactions are irreversible, which means that once a transaction is confirmed, it cannot be undone. Each transaction has a transaction fee, which is paid to the miners who validate the transaction and add a block to the blockchain.

It is important to emphasize that to date no way (not even theoretical) has been found to violate the cryptographic security on which Bitcoin is based. The best way to protect your bitcoin is to be proactive with the information that is in your hand, having your funds in the wallets and accounts of the exchange houses you run the risk of losing them. In fact, the security of Bitcoin is superior to that used by financial systems around the world. We propose a system in 7 steps.

El Bitcoin (BTC) is the first currency based on asymmetric cryptographyand that has opened up a world of possibilities. The idea of this cryptocurrency stems from other already existing and lesser-known elements, such as HashCash, BitGold or DigiCash, which are combined within a peer-to-peer payment network (peer-to-peer or P2P).