{"id":16350,"date":"2026-09-05T20:38:44","date_gmt":"2026-09-05T18:38:44","guid":{"rendered":"https:\/\/www.bitcoinstuffstore.com\/?post_type=product&#038;p=16350"},"modified":"2026-09-05T20:46:33","modified_gmt":"2026-09-05T18:46:33","slug":"shuffle-seed","status":"publish","type":"product","link":"https:\/\/www.bitcoinstuffstore.com\/en_us\/product\/shuffle-seed\/","title":{"rendered":"Shuffle Seed"},"content":{"rendered":"<p>How can you be sure that your hardware wallet\u2019s seed phrase is truly random? Usually, you can\u2019t be sure: you have to trust the random number generator and the device\u2019s firmware. With Shuffle Seed, you generate that randomness yourself. All 2,048 words from the BIP39 word list are printed on six sheets as expression cards. You shuffle them in a bag, blindly draw your words, and let your wallet calculate only the last word.<\/p>\n<h2>Specifications<\/h2>\n<ul class=\"bss-spec-list\">\n<li><strong>Content<\/strong>: 6 kartonnen vellen (A5) met alle 2048 BIP39-woorden als uitdrukfiches, plus een handleiding met stappenplan en veiligheidsregels<\/li>\n<li><strong>Suitable for<\/strong>: seed phrases van 12 en 24 woorden<\/li>\n<li><strong>Verifiable<\/strong>: alfabetisch geordend, na te lopen tegen de offici\u00eble BIP39-woordenlijst<\/li>\n<li><strong>Reusable<\/strong>: zo vaak je wilt een nieuwe seed trekken<\/li>\n<li><strong>Works with<\/strong>: elke hardware wallet of elk signing device dat het checksum-woord kan berekenen<\/li>\n<li><strong>Electronics<\/strong>: geen. Geen batterij, geen firmware, geen updates<\/li>\n<li><strong>Weight<\/strong>: circa 50 gram<\/li>\n<li><strong>Origin<\/strong>: ontworpen en geproduceerd in Nederland, door de makers van de Seedfan<\/li>\n<\/ul>\n<h2>How does Shuffle Seed work?<\/h2>\n<p>In short: you create the randomness with your hands and your wallet only does the final calculation. In six steps from skin to seed:<\/p>\n<ol>\n<li><strong>Check.<\/strong> Compare the six alphabetical sheets with the <a href=\"https:\/\/github.com\/bitcoin\/bips\/blob\/master\/bip-0039\/english.txt\" rel=\"noopener\" target=\"_blank\">official BIP39 wordlist on GitHub<\/a>. Trust, but verify.<\/li>\n<li><strong>Express the words.<\/strong> All 2048 tokens come loose from the sheets.<\/li>\n<li><strong>Shake.<\/strong> Put all the chips in a bag or hat and mix them thoroughly.<\/li>\n<li><strong>Blind hike.<\/strong> Eleven words for a 12-word seed, 23 for a 24-word seed. One by one, and put each token back before you draw the next. Duplicate words are allowed.<\/li>\n<li><strong>Have the last word calculated.<\/strong> The twelfth or twenty-fourth word contains the checksum and cannot be extracted. Your hardware wallet or signing device calculates it for you.<\/li>\n<li><strong>Make a backup in steel.<\/strong> Never store your seed digitally. For example, engrave it into a <a href=\"https:\/\/www.bitcoinstuffstore.com\/en_us\/product\/seedfan-steel-kit\/\">Seedfan Steel Kit<\/a> and keep it in a safe place.<\/li>\n<\/ol>\n<h2>Why would you save your own seeds?<\/h2>\n<p>A hardware wallet generates your seed using a built-in random number generator. With a good device, that\u2019s fine, but you can\u2019t verify it. If there\u2019s a flaw in the firmware or the chip, you won\u2019t notice it until it\u2019s too late. You can read about why this isn\u2019t just a theory in our article on <a href=\"https:\/\/www.bitcoinstuffstore.com\/en_us\/coldcard-entropy-problem\/\">the Coldcard entropy problem<\/a>.<\/p>\n<p>With Shuffle Seed, you\u2019re in full control of the randomness. Each blind draw with replacement yields 11 bits of entropy, since you\u2019re choosing from 2,048 possibilities. Twenty-three draws yield roughly 253 bits. That\u2019s on the same order of magnitude as the 256 bits that a hardware wallet uses itself and is well beyond the reach of any brute-force attack. The wallet simply fills in the checksum word and verifies that the seed is valid.<\/p>\n<h2>Shuffle Seed or dice?<\/h2>\n<p>Rolling dice is the well-known way to create entropy yourself. It works, but it requires 100 rolls, flawless note-taking, and a wallet that converts the sequence into 24 words. That conversion happens out of sight. If you want to verify it, you have to rebuild the device's calculation yourself.<\/p>\n<p>Shuffle Seed skips that step. What you draw are already BIP39 words. You see your seed being created, you can compare it with what your wallet shows, and you can check it on a second offline device. Fewer actions, less chance of error, and a process that a beginner understands and an advanced user can verify.<\/p>\n<h2>Who is Shuffle Seed for?<\/h2>\n<p>For anyone who takes self-custody seriously and prefers not to have the word \u201ctrust\u201d in their setup. New to self-custody? Read first <a href=\"https:\/\/www.bitcoinstuffstore.com\/en_us\/bitcoin-self-custody-starter-guide\/\">Keep the bitcoin Starter Guide for yourself<\/a>. Then choose a <a href=\"https:\/\/www.bitcoinstuffstore.com\/en_us\/productcategory\/hardware-wallets\/\">hardware wallet<\/a> that can calculate the checksum. It also works as a gift for a bitcoiner: it&#x27;s tangible, educational, and you don&#x27;t need to know anything about it yourself to give it.<\/p>\n<p>Note: generate your seed in a secure room, without cameras, windows, or onlookers. Do not photograph your words and never type them into a device with internet access. How you store the seed afterwards can be read in <a href=\"https:\/\/www.bitcoinstuffstore.com\/en_us\/how-to-safely-store-a-seed-phrase\/\">store seed phrase securely: paper or steel<\/a>.<\/p>\n<h2>Frequently Asked Questions about Shuffle Seed<\/h2>\n<div class=\"bss-faq\">\n<div class=\"bss-faq-item\">\n<div class=\"bss-faq-question\">Which hardware wallets can calculate the checksum word?<\/div>\n<div class=\"bss-faq-answer\">SeedSigner, Krux, Coldcard, and Blockstream Jade, among others, have a feature that calculates the last word from a 11- or 23-word seed phrase. Check your device\u2019s manual to see if it includes this option; it\u2019s usually found under \u201cAdvanced Settings\u201d or \u201cTools.\u201d.<\/div>\n<\/div>\n<div class=\"bss-faq-item\">\n<div class=\"bss-faq-question\">Is a seed I generated myself just as secure as a seed from my hardware wallet?<\/div>\n<div class=\"bss-faq-answer\">Yes, if you shuffle thoroughly and draw blindly. 23 draws from 2,048 words yield about 253 bits of entropy, comparable to the 256 bits of a hardware wallet. The difference is that you now control the source of randomness yourself.<\/div>\n<\/div>\n<div class=\"bss-faq-item\">\n<div class=\"bss-faq-question\">How do I verify that the words on the sheets are correct?<\/div>\n<div class=\"bss-faq-answer\">The 2048 words are listed alphabetically on six sheets. Lay them next to the official BIP39 word list on GitHub and check them before printing the tokens. That way you can be sure no word is missing or misspelled.<\/div>\n<\/div>\n<div class=\"bss-faq-item\">\n<div class=\"bss-faq-question\">Must I put each token back before I draw the next one?<\/div>\n<div class=\"bss-faq-answer\">That is the recommended way, because then each draw is completely independent and you get the maximum entropy. Duplicate words in a seed are simply valid. If you draw without replacement, the seed is still very safe.<\/div>\n<\/div>\n<div class=\"bss-faq-item\">\n<div class=\"bss-faq-question\">Can I use Shuffle Seed more than once?<\/div>\n<div class=\"bss-faq-answer\">Yes. After drawing, all chips go back into the bag and you can draw a seed again later, for example for a second wallet or for someone who is helping you with self-custody.<\/div>\n<\/div>\n<div class=\"bss-faq-item\">\n<div class=\"bss-faq-question\">How do I store the seed I have generated?<\/div>\n<div class=\"bss-faq-answer\">Never go digital: no photos, no note-taking apps, no password managers. Write the words down on paper for the initial check, and then cast them in metal, for example, using a Seedfan Steel Kit. Store the backup separately from your hardware wallet.<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>With Shuffle Seed, you create your bitcoin seed phrase with your own hands. Six A5 sheets featuring all 2,048 BIP39 words as printout cards: shuffle, draw blindly, done. No electronics and no firmware you have to trust. Designed and made in the Netherlands by the creators of the Seedfan.<\/p>","protected":false},"featured_media":16346,"comment_status":"open","ping_status":"closed","template":"","meta":{"rank_math_focus_keyword":"shuffle seed,seed phrase zelf maken","rank_math_title":"Shuffle Seed kopen | Zelf je BIP39 seed phrase trekken","rank_math_description":"Shuffle Seed kopen: alle 2048 BIP39-woorden als uitdrukfiches. Schud, trek blind je seed phrase en laat je hardware wallet het checksum-woord berekenen.","rank_math_canonical_url":"","rank_math_facebook_title":"","rank_math_facebook_description":"","rank_math_facebook_image":"","rank_math_twitter_title":"","rank_math_twitter_description":"","rank_math_twitter_image":"","rank_math_pillar_content":"","rank_math_breadcrumb_title":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_joinchat":[]},"product_brand":[],"product_cat":[450,290],"product_tag":[293,480,375],"class_list":["post-16350","product","type-product","status-publish","has-post-thumbnail","product_cat-bitcoin-cadeau","product_cat-recovery-seed-backup","product_tag-hardware-wallet","product_tag-seed-backup","product_tag-self-custody","desktop-align-center","tablet-align-left","mobile-align-left","ast-product-gallery-layout-horizontal-slider","ast-product-tabs-layout-horizontal","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.bitcoinstuffstore.com\/en_us\/wp-json\/wp\/v2\/product\/16350","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bitcoinstuffstore.com\/en_us\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.bitcoinstuffstore.com\/en_us\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bitcoinstuffstore.com\/en_us\/wp-json\/wp\/v2\/comments?post=16350"}],"version-history":[{"count":1,"href":"https:\/\/www.bitcoinstuffstore.com\/en_us\/wp-json\/wp\/v2\/product\/16350\/revisions"}],"predecessor-version":[{"id":16353,"href":"https:\/\/www.bitcoinstuffstore.com\/en_us\/wp-json\/wp\/v2\/product\/16350\/revisions\/16353"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bitcoinstuffstore.com\/en_us\/wp-json\/wp\/v2\/media\/16346"}],"wp:attachment":[{"href":"https:\/\/www.bitcoinstuffstore.com\/en_us\/wp-json\/wp\/v2\/media?parent=16350"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.bitcoinstuffstore.com\/en_us\/wp-json\/wp\/v2\/product_brand?post=16350"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.bitcoinstuffstore.com\/en_us\/wp-json\/wp\/v2\/product_cat?post=16350"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.bitcoinstuffstore.com\/en_us\/wp-json\/wp\/v2\/product_tag?post=16350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}