Frequently asked questions

Blocktables is a data base for statistical blockchain data, cryptocurrency facts and market updates. Explore our database for insights on Bitcoin, Ethereum and major altcoins. If you still have a question, find the frequently asked questions below.

data faq

Statistics & Data

Which sources do the polls and surveys come from?

The data is derived from various sources such as studies, scientific publications, trade reports, and other relevant publications. This includes also cryptospecific websites such as CoinMarketCap and CoinGecko or various blockchain explorers. The background information on the respective statistics can be found in the infobox “Table & Chart Data”.

When were the data collected and the statistics published?

Information on the release date and survey period can be found in the “Table & Chart Data” infobox in the section “Release date” and “Survey”.

What about third party data?

The data we use to compile our statistics is researched and edited by us. Only the data itself is reproduced, while no classification takes place. For this reason, we quote the source of the data in detail and link to the authors of the corresponding survey. Further information on the exact methodological procedure can be found in the linked sources.

Where can I find information on the published statistics?

Below each statistic is an information box “Table & Chart Data”, where the most important information about each statistic is displayed. For example, it lists who published the data and for which groups and region the data were collected and when. Below each statistic, you’ll find the link to the original source to dive even deeper into that study/survey/poll. Further useful information can be found directly below the respective chart/graph.

Is the published data updated regularly?

Our statistics are updated on an ongoing basis. If you would like to inform us about current survey data and interesting statistics, please use the contact form below or send an e-mail to

Can the data be copied or downloaded?

You can download both our statistics (graphs/charts) and the data in table form. To download the selected statistic, simply click on the three bars in the upper right corner of the statistic and select the file format you wish to download. To cite statistics from our website, it is best to use the URL link. Please note that we only present the corresponding data on our website and are not the source of these data or collect them. To cite statistics in scientific papers, the reference to the authors of surveys, studies, etc. is required.

How to find data or statistics on our platform?
To find data and statistics on our website, there are two different ways: First, you can browse through the different categories in the navigation bar to find all the statistics on a cryptocurrency like Bitcoin, or all the statistics on DeFi for example. In addition to that, you can of course also search for keywords using our website search. Simply enter your search term in the search bar.

All statistics that match the search term will then be displayed. In the search mask, you have several options to narrow down your search by selecting different keywords and regions. Also, don’t forget to follow the social media channels in order not to miss visualized infographics on the latest news from the world of cryptocurrencies.

Blockchain faq

Bitcoin & Cryptocurrencies

What is Blockchain?
The term Blockchain typically describes a decentralized, transparent, public ledger that allows units of value to be transferred securely using public key encryption and proof-of-work technology. Broadly speaking, a blockchain is a database shared across a network of computers. In this database, each block in the chain contains a certain number of transactions and whenever a new transaction is performed on the blockchain, a record of this transaction is added to the ledger of each participant in the network.

This decentralised database, which is managed by various network participants, is known as Distributed Ledger Technology (DLT). By using decentralised consensus to maintain the network, blockchain technology has a huge advantage over traditional digital databases. It cannot be censored, manipulated or controlled by a single centralised network participant, institution or government.
What are Cryptocurrencies?

Cryptocurrencies (or crypto) are digital assets secured by cryptography. Cryptocurrencies are based on the so-called distributed ledger technology, whereby all transactions are stored on the blockchain. Like traditional FIAT currencies, cryptocurrencies also act as a medium of exchange, however with no intermediaries (e.g. banks) monitoring the transactions. In addition to Bitcoin, which is considered the first cryptocurrency, there are over 10,000 different cryptocurrencies today. These cryptocurrencies are called altcoins (alternative coins).

What is Bitcoin?
Bitcoin is a revolutionary new payment network and a new form of electronic money. It’s a digital currency which enables secure and instant financial transactions at dramatically low costs between any two individuals anywhere on the globe. Bitcoin allows its users to transact directly, peer-to-peer, without an intermediary and can be used just like other currencies or assets in exchange for goods or services. Bitcoins are the unit of currency of the Bitcoin payment network. The most used abbreviations for Bitcoin are BTC or XBT.

Bitcoin is the very first cryptocurrency and was founded by an anonymous person or group of individuals, named Satoshi Nakamoto. To this day, Satoshi Nakamoto’s identity and nationality are still unknown. Bitcoin is decentralized. Unlike traditional currencies like the Euro or the US-Dollar, there is no government, institution or other central third party that oversees the issuance and circulation of Bitcoin. That means Bitcoin cannot be censored, manipulated or controlled by a single centralised institution or government. Also, if you store your Bitcoin in a digital, non-custodial wallet, no institution, government or third party is able to lock you out of your funds.
How do I store Cryptocurrencies like Bitcoin or Ethereum?
Your cryptocurrency holdings can be managed, sent and received via cryptocurrency wallets. There are different types of wallets with different levels of security such as desktop wallets, mobile wallets, hardware wallets or paper wallets. Wallets do not actually store cryptocurrencies per se, but the private keys to access the digital assets on the blockchain. For this reason, it is critically important that you keep your private key and seed phrase safe and never share them with anyone. Once someone gets hold of your private key, that person will also be able to access your crypto assets stored in your wallet!

For this reason, a well-known saying in the crypto world is: Not your keys, not your coins!
What is an Altcoin?

All cryptocurrencies, coins or tokens other than Bitcoin are referred to as altcoins. The term altcoin is short for alternative coin. It alludes to the fact that Bitcoin emerged as the first or original cryptocurrency in 2009 and subsequent cryptocurrencies are classified as “alternative” or “alternate” coins. A prominent example of an altcoin is the second largest cryptocurrency Ethereum.

What is an Ethereum?
Ethereum is a cryptocurrency developed by the Russian-Canadian programmer Vitalik Buterin and his co-founders Mihai Alisie, Anthony Di Iorio, Charles Hoskinson, Joseph Lubin and Gavin Wood.

Ethereums whitepaper was published in 2013 with proposals for a new cryptocurrency based on the idea of creating blockchain networks with a more general scripting language to develop multiple applications based on so-called smart contracts. After a token sale in 2014, the Ethereum project finally launched in 2015.
What is Decentralized Finance (DeFi)?
The acronym DeFi stands for “Decentralized Finance” and describes new forms of financial protocols that are based on smart contracts and do not require a central intermediary. In contrast, in traditional financial markets, central instances such as banks are indispensable for financial transactions and services.

Recently, many new DeFi projects such as decentralized exchanges, stablecoins or peer-to-peer lending services have emerged in the crypto sector, mostly based on the Ethereum blockchain.
What are Non-fungible Tokens (NFTs)?
NFT stands for “Non-Fungible Token” and refers to a cryptographic token on the blockchain that cannot be replicated or replaced. NFTs act as certificates for the authenticity and uniqueness of a digital asset and give the owner proof of ownership.

Especially in the art and music scene, digital works have recently been offered as Non-Fungible-Tokens. In March 2021, Twitter CEO Jack Dorsey’s first tweet was auctioned off as a NFT for $2,9 million.

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