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In the Web3 world

You are your own bank

In Web3 there are no intermediaries.
No one can recover access for you.

Your money depends on a single decision:
how you store your recovery key.

Yoseyomo exists to protect your financial sovereignty.

What Yoseyomo is and why custody is key to your financial sovereignty (2 min)

Choose the material of your Yoseyomo

4.9
YSYM512
89,00 €
4.9
YSYM1024
99,00 €
4.9
YSYM2048
149,00 €
Take your security to another level

Indestructible protection for your seed phrase

A story forged through design, recognized worldwide

Receiving the Red Dot Award 2025 in the Innovative Design category is not just a recognition for Yoseyomo.

It is confirmation that a custody object can go beyond its technical function.

When security is designed with precision, judgment, and purpose, it stops being a simple device and becomes a symbol of financial sovereignty.

Download Dossier

Reviews from customers who already took the step

Yoseyomo in the media

Our Partners

Yoseyomo and your wallet

Yoseyomo is independent of your wallet and compatible with the most widely used recovery standards.
It works with any wallet that uses BIP39 or SLIP39 recovery phrases, regardless of brand or device.

Our values

Japanese Essence

Yoseyomo was born out of the need to create the best physical device in the world to safely store any seed phrase.

Inspired by the philosophy of the samurai, who valued simplicity and elegance, we have fused ancestral wisdom with the vanguard of innovation, the perfect synthesis between tradition and modernity.

Japanese essence, made in Spain.

We take care of every detail

Japanese essence

Safety and security

Frequently Asked Questions

Product

Questions and answers related to all Yoseyomo® products.

What is the difference between one Yoseyomo and another?

All our models share the same dimensions: 50 mm in diameter and 3 mm thick, as well as encryption and concealment capabilities. The only difference is the material they are made of, and in the case of the YSYM2048, which also includes the Crypto Security Fundamental Course for free.

How does Yoseyomo work?

You can find more information, including videos, on our Getting Started page.

To summarize the concept, all crypto wallets worldwide are created following the BIP39 industry standard. This standard consists of a set of 2048 words, from which each wallet randomly selects between 15 and 24 words to generate the seed phrase.

What Yoseyomo allows you to do is use a punch to mark each word in a coded manner on the dot matrix. The 2048 words are arranged alphabetically and assigned a position number. For example, if your first word is "amazing", it corresponds to position 63.

To store it in your Yoseyomo, you simply punch the holes corresponding to the values marked on the metal plate: 32+16+8+4+3+2+1, which add up to 63. This represents the word you want to store and protect.

This way, you encode and store your seed phrase in a highly durable metal plate (in the case of the YSYM2048, made of titanium) to ensure its long-term preservation.

This method prevents you from storing your seed phrase on paper, in a computer notepad, or other mediums that do not guarantee indestructibility or protection against hacking, ensuring the security of all your crypto funds.

Is the marking punch included with the purchase of Yoseyomo?

Yes, each Yoseyomo includes an automatic punch that facilitates metal marking without the need for a hammer.

Is it possible that the BIP39 list will be incompatible or disappear in the future?

Since BIP39 has been a widely adopted standard since 2013, it is unlikely to disappear. However, we are prepared to adapt to new standards if they emerge.

Is it compatible with the SLIP39 list?

Yes, it is fully compatible. Simply visit the SLIP39 page on our website and follow that guide instead of the BIP39 list.

Shipping and returns

Frequently asked questions about shipping, returns and exchanges.

Is there any kind of guarantee for Yoseyomo?

The law requires us to provide a two-year warranty, but we are so confident in our products that we offer a lifetime warranty against damage, guaranteeing a free replacement. Other reasons unrelated to Yoseyomo SL, such as loss, incorrect marking, etc., are excluded.

In which countries is Yoseyomo available?

We ship worldwide, except to the following countries: North Korea, Cuba, Guinea-Bissau, Iran, Wake Island, Falkland Islands, Johnston Atoll, Solomon Islands, Tokelau, Kiribati, Myanmar, Nauru, Niue, Central African Republic, Saint Helena, São Tomé and Príncipe, Sierra Leone, Somalia, Sudan, Tajikistan, Turkmenistan, and Tuvalu.

What should I do if my Yoseyomo is damaged or broken?

Use the lifetime warranty by sending an email to support@yoseyomo.com with details and pictures of the damage.

What steps can I take if I lose my Yoseyomo?

The best advice is to withdraw the funds from your wallet as soon as possible to prevent anyone from accessing them if a Yoseyomo is found and deciphered.

After that, create a new wallet from scratch, transfer the funds, and secure your seed phrase with new Yoseyomo devices.