Cryptocurrency basics - The 25 most important questions<\/title>\n <meta name=\"description\" content=\"The most important questions & answers about cryptocurrencies: How does blockchain work? What is a wallet? Perfect for beginners.\">\n\n <style>\n article {\n max-width: 800px;\n margin: 0 auto;\n padding: 2rem 1rem;\n font-family: system-ui, sans-serif;\n line-height: 1.6;\n }\n\n article h1 {\n font-size: 2rem;\n margin-bottom: 1rem;\n text-align: center;\n }\n\n article header p {\n text-align: center;\n margin-bottom: 2rem;\n color: #555;\n }\n\n section#faq h2 {\n font-size: 1.25rem;\n margin-top: 2rem;\n margin-bottom: 0.5rem;\n color: #222;\n }\n\n section#faq p {\n margin: 0 0 1.5rem 0;\n }\n\n a {\n color: #0a66c2;\n text-decoration: underline;\n }\n\n a:hover {\n text-decoration: none;\n }\n\n nav h2 {\n font-size: 1.1rem;\n margin-bottom: 0.5rem;\n color: #444;\n }\n\n nav ul {\n list-style: none;\n padding-left: 0;\n margin-bottom: 2rem;\n }\n\n nav ul li {\n margin: 0.4rem 0;\n }\n\n nav ul li a {\n text-decoration: none;\n color: #0a66c2;\n }\n\n nav ul li a:hover {\n text-decoration: underline;\n }\n\n @media (max-width: 600px) {\n article {\n padding: 1rem;\n }\n\n article h1 {\n font-size: 1.5rem;\n }\n\n section#faq h2 {\n font-size: 1.1rem;\n }\n }\n <\/style>\n<\/head>\n\n<body>\n <article>\n <header>\n <h1>Cryptocurrency basics - the 25 most important questions explained simply<\/h1>\n <p>New to the crypto world? In this FAQ you will find the 25 most frequently asked questions about cryptocurrencies, blockchain, wallets & co - explained clearly and with links to further information.<\/p>\n <\/header>\n\n <section id=\"faq\">\n <div itemscope itemtype=\"https:\/\/schema.org\/FAQPage\">\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-1\">\n <h2 itemprop=\"name\">1 What is a cryptocurrency?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Cryptocurrencies are digital currencies based on cryptographic technology and decentralized networks - in other words, they function without a central authority such as a bank. The best-known cryptocurrency is <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/21\/bitcoin\/\">Bitcoin<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-2\">\n <h2 itemprop=\"name\">2 How do cryptocurrencies work technically?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n They are based on blockchain technology, in which all transactions are stored in a decentralized digital ledger. You can find out more in the <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/10\/what-is-blockchain-advantages-and-challenges\/\">Blockchain article<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-3\">\n <h2 itemprop=\"name\">3 What is the blockchain?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A blockchain is a continuously expandable chain of data blocks in which transactions are stored permanently and tamper-proof. You can find details in the <a href=\"\/en\/glossary\/blockchain\/\">Glossary entry Blockchain<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-4\">\n <h2 itemprop=\"name\">4 What is a wallet?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A wallet is a digital purse that you can use to receive, store and send cryptocurrencies. More about this in the <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/04\/16\/set-up-crypto-wallet\/\">Wallet-Guide<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-5\">\n <h2 itemprop=\"name\">5 What is a private key?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n The private key is the secret access to your wallet. Anyone who knows it can access your balance - which is why it must be kept particularly secure.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-6\">\n <h2 itemprop=\"name\">6 What does decentralization mean?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Decentralization means that no central organization controls the system. Decisions and validations are made by a distributed network of participants (nodes).\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-7\">\n <h2 itemprop=\"name\">7 What is a public key?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n The public key is the public key of your wallet - i.e. the address to which coins can be sent. Comparable to an IBAN.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-8\">\n <h2 itemprop=\"name\">8 What does mining mean?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Mining is the process by which new coins are created and transactions are validated. Miners use computing power to solve cryptographic tasks.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-9\">\n <h2 itemprop=\"name\">9 What is proof-of-work?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Proof-of-work is a consensus mechanism in which computers solve complex computing tasks to validate transactions - including Bitcoin. The process is energy-intensive, but very secure.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-10\">\n <h2 itemprop=\"name\">10 What is proof-of-stake?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Proof-of-stake is an alternative method in which participants \"stake\" their coins to validate transactions and receive rewards. It is considered more energy-efficient and is used, for example, with Ethereum.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-11\">\n <h2 itemprop=\"name\">11 What is a token?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A token is a digital unit that usually runs on an existing blockchain platform - for example on <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/21\/ethereum\/\">Ethereum<\/a>. Tokens can have various functions, for example as a means of payment, access key or voting right in a project.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-12\">\n <h2 itemprop=\"name\">12 What is the difference between a coin and a token?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Coins have their own blockchain (e.g. Bitcoin), while tokens are based on an existing blockchain such as Ethereum. Tokens often fulfill specific functions within a project. More on this in the <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/22\/tokenomics\/\">Comparison of coin and token<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-13\">\n <h2 itemprop=\"name\">13 What are stablecoins?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Stablecoins are cryptocurrencies whose value is pegged to a stable reference such as the US dollar or euro. Well-known examples are USDT, USDC and DAI.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-14\">\n <h2 itemprop=\"name\">14 What is a white paper?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A white paper is a technical document that describes the concept, technology and objectives of a crypto project. It is often the basis for investor decisions on new projects.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-15\">\n <h2 itemprop=\"name\">15 How to buy cryptocurrencies?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n You can buy cryptocurrencies via exchanges such as <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/11\/binance-fees\/\">Binance<\/a>, <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/04\/16\/kucoin-bonus-code-2025\/\">KuCoin<\/a> or <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/04\/16\/bitget-bonus-code-2025\/\">Bitget<\/a> purchase - by SEPA, credit card or other payment methods.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-16\">\n <h2 itemprop=\"name\">16 What is a seed phrase?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A seed phrase is a recovery phrase that usually consists of 12 or 24 words. It allows you to access your wallet in the event of device loss or reinstallation. Never save it online!\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-17\">\n <h2 itemprop=\"name\">17 What is a transaction fee (gas fee)?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Gas fees are network fees that are incurred for transactions or smart contracts. They depend on the utilization of the network. You can find tips on how to save in the <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/29\/what-are-gas-fees\/\">Gas fairy guide<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-18\">\n <h2 itemprop=\"name\">18 What is a Blockchain Explorer?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n With a blockchain explorer, you can search through every transaction, address or block in real time. Popular tools are Etherscan (Ethereum) or Blockchain.com (Bitcoin).\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-19\">\n <h2 itemprop=\"name\">19 What is a fork?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A fork is a spin-off of an existing blockchain - e.g. Bitcoin Cash as a spin-off of Bitcoin. A distinction is made between hard forks and soft forks.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-20\">\n <h2 itemprop=\"name\">20 What does HODL mean?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n HODL is a crypto insider term that means \"Hold On for Dear Life\". It describes the strategy of holding cryptocurrencies for the long term - regardless of price fluctuations.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-21\">\n <h2 itemprop=\"name\">21 What is a DApp?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n DApps (decentralized applications) run on the blockchain - without central servers. Among other things, they enable decentralized financial applications (DeFi), games or NFT platforms.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-22\">\n <h2 itemprop=\"name\">22 What is an ICO?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n An ICO (Initial Coin Offering) is a form of financing in which new crypto projects sell tokens to raise capital. It is similar to an initial public offering (IPO), but is less regulated.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-23\">\n <h2 itemprop=\"name\">23 How secure are cryptocurrencies?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Blockchain technology is considered secure. Risks usually arise from user errors, phishing, insecure wallets or lost access data. You can find out more about secure use in our <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/11\/crypto-wallets\/\">Wallet FAQ<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-24\">\n <h2 itemprop=\"name\">24 What are the advantages of cryptocurrencies?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Advantages: Decentralization, transparency, global availability, fast transactions and innovation potential. Particularly relevant in countries with weak currencies or limited access to banks.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-25\">\n <h2 itemprop=\"name\">25 What are the risks associated with cryptocurrencies?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Risks: High volatility, possible regulatory intervention, technical errors, loss due to hacks or forgotten access data. Only invest what you are prepared to lose.\n <\/p>\n <\/div>\n<\/div>\n\n <\/div>\n <\/section>\n <\/article>\n<\/body>\n<\/html>","protected":false},"excerpt":{"rendered":"<p>This FAQ explains 25 basic questions about cryptocurrencies, blockchain, wallets and how they work in simple terms.<\/p>","protected":false},"author":263121695,"featured_media":1825,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false},"categories":[778847328],"tags":[],"class_list":["post-1824","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq-kryptowaehrungen"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-22.png","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":1890,"url":"https:\/\/kryptozukunft.com\/en\/2025\/04\/20\/faq-mining-and-staking\/","url_meta":{"origin":1824,"position":0},"title":"FAQ Mining and staking","author":"Felix Rieger","date":"April 20, 2025","format":false,"excerpt":"The most important questions about crypto mining, its technologies, efficiency, security and future developments are covered in detail in this article.","rel":"","context":"In "Krypto News - Nachrichten Portal"","block_context":{"text":"Krypto News - Nachrichten Portal","link":"https:\/\/kryptozukunft.com\/en\/category\/crypto-news\/"},"img":{"alt_text":"FAQ Mining und Staking","src":"https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-31.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-31.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-31.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-31.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1828,"url":"https:\/\/kryptozukunft.com\/en\/2025\/04\/18\/faq-blockchain\/","url_meta":{"origin":1824,"position":1},"title":"FAQ Blockchain","author":"Felix Rieger","date":"April 18, 2025","format":false,"excerpt":"The FAQ explains blockchain, how it works, its advantages, challenges and areas of application, as well as important terms such as smart contracts and consensus mechanisms.","rel":"","context":"In "FAQ Kryptow\u00e4hrungen - 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die H\u00e4ufigsten Fragen"","block_context":{"text":"FAQ Kryptow\u00e4hrungen - die H\u00e4ufigsten Fragen","link":"https:\/\/kryptozukunft.com\/en\/category\/faq-cryptocurrencies\/"},"img":{"alt_text":"Bitcoin Halving 2028","src":"https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-15.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-15.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-15.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-15.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1855,"url":"https:\/\/kryptozukunft.com\/en\/2025\/04\/19\/faq-stablecoins\/","url_meta":{"origin":1824,"position":5},"title":"FAQ Stablecoins","author":"Felix Rieger","date":"April 19, 2025","format":false,"excerpt":"Stablecoins are digital currencies that are pegged to real assets to provide stability and security in the crypto market.","rel":"","context":"In "FAQ Kryptow\u00e4hrungen - die H\u00e4ufigsten Fragen"","block_context":{"text":"FAQ Kryptow\u00e4hrungen - die H\u00e4ufigsten Fragen","link":"https:\/\/kryptozukunft.com\/en\/category\/faq-cryptocurrencies\/"},"img":{"alt_text":"FAQ Stablecoins","src":"https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-26.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-26.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-26.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-26.png?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/kryptozukunft.com\/en\/wp-json\/wp\/v2\/posts\/1824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kryptozukunft.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kryptozukunft.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kryptozukunft.com\/en\/wp-json\/wp\/v2\/users\/263121695"}],"replies":[{"embeddable":true,"href":"https:\/\/kryptozukunft.com\/en\/wp-json\/wp\/v2\/comments?post=1824"}],"version-history":[{"count":3,"href":"https:\/\/kryptozukunft.com\/en\/wp-json\/wp\/v2\/posts\/1824\/revisions"}],"predecessor-version":[{"id":1833,"href":"https:\/\/kryptozukunft.com\/en\/wp-json\/wp\/v2\/posts\/1824\/revisions\/1833"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kryptozukunft.com\/en\/wp-json\/wp\/v2\/media\/1825"}],"wp:attachment":[{"href":"https:\/\/kryptozukunft.com\/en\/wp-json\/wp\/v2\/media?parent=1824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kryptozukunft.com\/en\/wp-json\/wp\/v2\/categories?post=1824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kryptozukunft.com\/en\/wp-json\/wp\/v2\/tags?post=1824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":1824,"date":"2025-04-18T20:01:34","date_gmt":"2025-04-18T18:01:34","guid":{"rendered":"https:\/\/kryptozukunft.com\/?p=1824"},"modified":"2025-04-19T15:11:40","modified_gmt":"2025-04-19T13:11:40","slug":"faq-basics-cryptocurrencies","status":"publish","type":"post","link":"https:\/\/kryptozukunft.com\/en\/2025\/04\/18\/faq-basics-cryptocurrencies\/","title":{"rendered":"FAQ basics cryptocurrencies"},"content":{"rendered":"\n\n\n \n \n Cryptocurrency basics - The 25 most important questions<\/title>\n <meta name=\"description\" content=\"The most important questions & answers about cryptocurrencies: How does blockchain work? What is a wallet? Perfect for beginners.\">\n\n <style>\n article {\n max-width: 800px;\n margin: 0 auto;\n padding: 2rem 1rem;\n font-family: system-ui, sans-serif;\n line-height: 1.6;\n }\n\n article h1 {\n font-size: 2rem;\n margin-bottom: 1rem;\n text-align: center;\n }\n\n article header p {\n text-align: center;\n margin-bottom: 2rem;\n color: #555;\n }\n\n section#faq h2 {\n font-size: 1.25rem;\n margin-top: 2rem;\n margin-bottom: 0.5rem;\n color: #222;\n }\n\n section#faq p {\n margin: 0 0 1.5rem 0;\n }\n\n a {\n color: #0a66c2;\n text-decoration: underline;\n }\n\n a:hover {\n text-decoration: none;\n }\n\n nav h2 {\n font-size: 1.1rem;\n margin-bottom: 0.5rem;\n color: #444;\n }\n\n nav ul {\n list-style: none;\n padding-left: 0;\n margin-bottom: 2rem;\n }\n\n nav ul li {\n margin: 0.4rem 0;\n }\n\n nav ul li a {\n text-decoration: none;\n color: #0a66c2;\n }\n\n nav ul li a:hover {\n text-decoration: underline;\n }\n\n @media (max-width: 600px) {\n article {\n padding: 1rem;\n }\n\n article h1 {\n font-size: 1.5rem;\n }\n\n section#faq h2 {\n font-size: 1.1rem;\n }\n }\n <\/style>\n<\/head>\n\n<body>\n <article>\n <header>\n <h1>Cryptocurrency basics - the 25 most important questions explained simply<\/h1>\n <p>New to the crypto world? In this FAQ you will find the 25 most frequently asked questions about cryptocurrencies, blockchain, wallets & co - explained clearly and with links to further information.<\/p>\n <\/header>\n\n <section id=\"faq\">\n <div itemscope itemtype=\"https:\/\/schema.org\/FAQPage\">\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-1\">\n <h2 itemprop=\"name\">1 What is a cryptocurrency?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Cryptocurrencies are digital currencies based on cryptographic technology and decentralized networks - in other words, they function without a central authority such as a bank. The best-known cryptocurrency is <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/21\/bitcoin\/\">Bitcoin<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-2\">\n <h2 itemprop=\"name\">2 How do cryptocurrencies work technically?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n They are based on blockchain technology, in which all transactions are stored in a decentralized digital ledger. You can find out more in the <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/10\/what-is-blockchain-advantages-and-challenges\/\">Blockchain article<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-3\">\n <h2 itemprop=\"name\">3 What is the blockchain?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A blockchain is a continuously expandable chain of data blocks in which transactions are stored permanently and tamper-proof. You can find details in the <a href=\"\/en\/glossary\/blockchain\/\">Glossary entry Blockchain<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-4\">\n <h2 itemprop=\"name\">4 What is a wallet?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A wallet is a digital purse that you can use to receive, store and send cryptocurrencies. More about this in the <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/04\/16\/set-up-crypto-wallet\/\">Wallet-Guide<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-5\">\n <h2 itemprop=\"name\">5 What is a private key?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n The private key is the secret access to your wallet. Anyone who knows it can access your balance - which is why it must be kept particularly secure.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-6\">\n <h2 itemprop=\"name\">6 What does decentralization mean?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Decentralization means that no central organization controls the system. Decisions and validations are made by a distributed network of participants (nodes).\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-7\">\n <h2 itemprop=\"name\">7 What is a public key?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n The public key is the public key of your wallet - i.e. the address to which coins can be sent. Comparable to an IBAN.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-8\">\n <h2 itemprop=\"name\">8 What does mining mean?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Mining is the process by which new coins are created and transactions are validated. Miners use computing power to solve cryptographic tasks.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-9\">\n <h2 itemprop=\"name\">9 What is proof-of-work?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Proof-of-work is a consensus mechanism in which computers solve complex computing tasks to validate transactions - including Bitcoin. The process is energy-intensive, but very secure.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-10\">\n <h2 itemprop=\"name\">10 What is proof-of-stake?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Proof-of-stake is an alternative method in which participants \"stake\" their coins to validate transactions and receive rewards. It is considered more energy-efficient and is used, for example, with Ethereum.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-11\">\n <h2 itemprop=\"name\">11 What is a token?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A token is a digital unit that usually runs on an existing blockchain platform - for example on <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/21\/ethereum\/\">Ethereum<\/a>. Tokens can have various functions, for example as a means of payment, access key or voting right in a project.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-12\">\n <h2 itemprop=\"name\">12 What is the difference between a coin and a token?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Coins have their own blockchain (e.g. Bitcoin), while tokens are based on an existing blockchain such as Ethereum. Tokens often fulfill specific functions within a project. More on this in the <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/22\/tokenomics\/\">Comparison of coin and token<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-13\">\n <h2 itemprop=\"name\">13 What are stablecoins?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Stablecoins are cryptocurrencies whose value is pegged to a stable reference such as the US dollar or euro. Well-known examples are USDT, USDC and DAI.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-14\">\n <h2 itemprop=\"name\">14 What is a white paper?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A white paper is a technical document that describes the concept, technology and objectives of a crypto project. It is often the basis for investor decisions on new projects.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-15\">\n <h2 itemprop=\"name\">15 How to buy cryptocurrencies?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n You can buy cryptocurrencies via exchanges such as <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/11\/binance-fees\/\">Binance<\/a>, <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/04\/16\/kucoin-bonus-code-2025\/\">KuCoin<\/a> or <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/04\/16\/bitget-bonus-code-2025\/\">Bitget<\/a> purchase - by SEPA, credit card or other payment methods.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-16\">\n <h2 itemprop=\"name\">16 What is a seed phrase?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A seed phrase is a recovery phrase that usually consists of 12 or 24 words. It allows you to access your wallet in the event of device loss or reinstallation. Never save it online!\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-17\">\n <h2 itemprop=\"name\">17 What is a transaction fee (gas fee)?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Gas fees are network fees that are incurred for transactions or smart contracts. They depend on the utilization of the network. You can find tips on how to save in the <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/29\/what-are-gas-fees\/\">Gas fairy guide<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-18\">\n <h2 itemprop=\"name\">18 What is a Blockchain Explorer?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n With a blockchain explorer, you can search through every transaction, address or block in real time. Popular tools are Etherscan (Ethereum) or Blockchain.com (Bitcoin).\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-19\">\n <h2 itemprop=\"name\">19 What is a fork?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n A fork is a spin-off of an existing blockchain - e.g. Bitcoin Cash as a spin-off of Bitcoin. A distinction is made between hard forks and soft forks.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-20\">\n <h2 itemprop=\"name\">20 What does HODL mean?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n HODL is a crypto insider term that means \"Hold On for Dear Life\". It describes the strategy of holding cryptocurrencies for the long term - regardless of price fluctuations.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-21\">\n <h2 itemprop=\"name\">21 What is a DApp?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n DApps (decentralized applications) run on the blockchain - without central servers. Among other things, they enable decentralized financial applications (DeFi), games or NFT platforms.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-22\">\n <h2 itemprop=\"name\">22 What is an ICO?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n An ICO (Initial Coin Offering) is a form of financing in which new crypto projects sell tokens to raise capital. It is similar to an initial public offering (IPO), but is less regulated.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-23\">\n <h2 itemprop=\"name\">23 How secure are cryptocurrencies?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Blockchain technology is considered secure. Risks usually arise from user errors, phishing, insecure wallets or lost access data. You can find out more about secure use in our <a href=\"https:\/\/kryptozukunft.com\/en\/2025\/03\/11\/crypto-wallets\/\">Wallet FAQ<\/a>.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-24\">\n <h2 itemprop=\"name\">24 What are the advantages of cryptocurrencies?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Advantages: Decentralization, transparency, global availability, fast transactions and innovation potential. Particularly relevant in countries with weak currencies or limited access to banks.\n <\/p>\n <\/div>\n<\/div>\n\n<div itemprop=\"mainEntity\" itemscope itemtype=\"https:\/\/schema.org\/Question\" id=\"frage-25\">\n <h2 itemprop=\"name\">25 What are the risks associated with cryptocurrencies?<\/h2>\n <div itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n <p itemprop=\"text\">\n Risks: High volatility, possible regulatory intervention, technical errors, loss due to hacks or forgotten access data. Only invest what you are prepared to lose.\n <\/p>\n <\/div>\n<\/div>\n\n <\/div>\n <\/section>\n <\/article>\n<\/body>\n<\/html>","protected":false},"excerpt":{"rendered":"<p>This FAQ explains 25 basic questions about cryptocurrencies, blockchain, wallets and how they work in simple terms.<\/p>","protected":false},"author":263121695,"featured_media":1825,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false},"categories":[778847328],"tags":[],"class_list":["post-1824","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq-kryptowaehrungen"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/kryptozukunft.com\/wp-content\/uploads\/2025\/04\/image-22.png","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":1890,"url":"https:\/\/kryptozukunft.com\/en\/2025\/04\/20\/faq-mining-and-staking\/","url_meta":{"origin":1824,"position":0},"title":"FAQ Mining and staking","author":"Felix Rieger","date":"April 20, 2025","format":false,"excerpt":"The most important questions about crypto mining, its technologies, efficiency, security and future developments are covered in detail in this article.","rel":"","context":"In "Krypto News - 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