Bitcoin Seed Phrase Dice Set (2 x 16-Sided Dice + 1 x 8-Sided Die)

Description

This Bitcoin seed phrase dice set contains two numbered 16-sided dice and one numbered 8-sided die for Blockstream’s documented D16/D16/D8 recovery-phrase method. One ordered throw has 16 x 16 x 8 = 2,048 possible outcomes, matching the 2,048 entries in the BIP39 English word list.

Each throw selects one provisional BIP39 word. Generate the first 11 words of a 12-word phrase or the first 23 words of a 24-word phrase, then use a compatible offline signer to add the remaining entropy and calculate the checksum-bearing final word.

What Is Included

• 2 x numbered 16-sided dice, with faces 1 through 16
• 1 x numbered 8-sided die, with faces 1 through 8
• Dice colors vary by available batch

D16/D8 Dice Set Specifications

Correct Dice Order

The official lookup table labels the dice in this order:

1. D1: first 16-sided die
2. D2: second 16-sided die
3. D3: 8-sided die

Keep the two d16 dice distinguishable by color, position, or a consistent left/right rule established before each throw. Reversing D1 and D2 changes the selected word.

Open Blockstream’s official D16/D16/D8 lookup method.

How to Generate the First 11 or 23 Words

1. Work offline and privately, away from cameras and other people.
2. Assign the two d16 dice as D1 and D2; the d8 is D3.
3. Roll all three dice together and record the ordered D1, D2, and D3 results.
4. Use the official Blockstream lookup table to find the corresponding provisional word.
5. Return the dice and repeat until you have 11 words for a 12-word phrase or 23 words for a 24-word phrase.
6. Use a compatible offline signer to supply the final entropy bits and calculate a valid checksum word.
7. Write down the complete phrase, verify it, and perform a recovery test before depositing meaningful funds.

Why the Final Word Is Different

BIP39 appends a checksum to the original entropy before converting it into words. In a 12-word phrase, the final word contains 7 entropy bits and 4 checksum bits. In a 24-word phrase, it contains 3 entropy bits and 8 checksum bits. The first 11 or 23 dice-selected words therefore do not determine a complete full-strength phrase by themselves.

SeedSigner’s final-word tool can accept 7 or 3 fresh coin flips for the remaining entropy before calculating the checksum. Jade can calculate valid final-word options through its documented recovery-phrase workflow. Follow the current instructions for the exact device and do not assume every wallet handles the final word identically.

Numbered Dice and the Official Table

This set uses faces numbered 1 through 16 and 1 through 8, matching the values shown in Blockstream’s lookup table. Hex-labeled dice use 0 through 9 and A through F and require a different reading convention. Do not mix the two conventions.

Compatible Offline Workflows

Never enter a real recovery phrase, provisional words, or private dice results into an online tool.

Why Buy From Solo Satoshi?

• Same-day shipping: In-stock orders placed before 12 PM CT ship the same business day from Conroe, Texas.
• Local pickup: Pickup is available at the Conroe storefront.
• Method-matched set: The package supplies the exact two d16 and one d8 combination used by the published method.
• Established seller: More than 60,000 devices have shipped to customers in over 70 countries.