Wizardsardine,
the Bitcoin security team
We are an international team, with our headquarter in the middle of the Atlantic. We are incorporated since 2020 in the Azores, Portugal.
We strongly believe in Open Source, especially for security. We contribute to Bitcoin Core and other projects, and we open source our security products too.
we believe in
Honesty.
Transparency.
Integrity.
Our story begins
2019
November
A hedge fund from Luxembourg reach out to Kevin through his consulting firm Chainsmiths to research a
self-hosted
bitcoin custody solution with spending policies.
Kevin designs a Bitcoin Vault architecture that does not require covenants nor key deletion.
This design is too complex
to be built for a single client.
First technical sanity checks of the protocol are performed by Alekos and Sjors.
2020
March
Antoine builds a technical demonstrator of Revault protocol, through his company Leonod. The protocol is entirely reworked. Antoine and Kevin decide the Revault is worth exploring further and look for funding to build a functional prototype of the protocol.
2020
August
BoostVC and Fulgur Ventures pre-seed Wizardsardine, the company Antoine and Kevin set up to build Revault.
2021
April
The first technical demontrator of Revault, "aquarium", is released.
2021
June
Revault is demoed publicly at the Open Source Dome at Bitcoin 2021 in Miami.
2022
January
Bridge round funding from Bitcoiner Ventures, Portugal Ventures, Stephen Cole, Lionel Jeannerat, Brad Mills.
2022
June
The first Revault Protocol is complete, the watchtowers and hardware integration are on hold until a first large deployment is on the way. Work on our next roadmap item, Liana, begins.
2022
September
The team hosts BTCAzores’22, the first technical Bitcoin unconference in the Azores.
2022
October
The product roadmap for 2023 is defined, including Liana, Liana Lite and more.
2022
December
After a couple months of development, Liana's first beta version is released.
2023
May
Liana v1.0 is released at Bitcoin 2023 in Miami. The Wizardsardine team sponsors the Open Source stage.
2023
September
Second version of Liana is released and BTCAzores’23 second edition takes place in Wizardsardine's headquarters, in Terceira Island.
2023
November
Liana v3.0 is launched with labels and Bitbox support.
2023
December
RBF fee bumping, automatic coin selection, wallet deletion and many other improvement are introduced in Liana v4.0.
2024
March
Safety Net (The ultimate protection against loss) and Liana Lite beta version for Signet are announced at Bitcoin Atlantis in Madeira.
2024
April
Liana v5.0 is released with Coldcard and Taproot support.
2024
July
Jade support is added in Liana.
2024
September
Liana v7.0 introduces Liana Connect , and the ability to use Electrum. The Liana Certified program was announced with the retail partner 21st Capital, followed by Plano B, Bitcoin Brabant, and "Criptotech".
2024
November
Liana v8.0 is released with templates, the inheritance and expanding multisig setups.
2024
December
Cryptosteel collaboration with Liana in the creation of The Liana Box, a starter kit to help you, or your loved ones, get into the Bitcoin world safely.
2025
January
Liana v9.0 is released, adding the first export feature for .csv files.
2025
April
Wallet backups are now introduced in Liana v10.0.
2025
May
Liana v11.0 finally adds the Multiwallet feature. SD card air-gap compatilibity and an improved recovery flow are also part of this large update.
2025
July
Liana v12.0 is out with the multiple tabs feature, support for the BitBox Nova and more.
2025
September
Liana v13.0 is released with encrypted descriptor backups, optional fiat value display and a more refined key setup flow.
2025
November
Liana Business is launched, a Bitcoin infrastructure tailored for companies, financial institutions, and regulated entities, with policy-driven controls and audit-ready transparency.
2025
December
Through a partnership with Resolvr, Liana Business users gain access to Bitcoin-denominated insurance for self-custodied assets via the BDIC™ marketplace.