Bitcoin: The Ultimate Collateral
Bitcoin: The Ultimate Collateral
Bitcoin: The Ultimate Collateral
Learn how Bitcoin-backed loans work, manage risks like liquidations and explore the future of financial sovereignty.
Why don’t the wealthy sell their assets?
Why don’t the wealthy sell their assets?
Why don’t the wealthy sell their assets?
What are Bitcoin-backed loans, and how do they work?
What are Bitcoin-backed loans, and how do they work?
What are Bitcoin-backed loans, and how do they work?
How to borrow against Bitcoin non-custodially?
How to borrow against Bitcoin non-custodially?
How to borrow against Bitcoin non-custodially?
Bitcoin: The Ultimate Collateral
Get your copy
Get your copy
Bitcoin: The Ultimate Collateral
English edition
English edition
Quotes that resonate
Quotes that resonate
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"Bitcoin allows you to be your own bank. Firefish provides that bank with actual services — borrow fiat against your stack, or lend fiat and earn yield — all secured by on-chain multisig. No custodian."
Knut Svanholm
Author & Philosopher
"Firefish lets you invest in fellow Bitcoiners –not banks– while your funds are secured by the hardest asset on earth."
Slush
Co-Founder of Trezor
"We've known for years that Bitcoin is the best collateral, but we had struggle to create structures that could take advantage of all its features. Firefish is such structure and its growth shows that this is just the beginning for Bitcoin."
Alberto Mera
Un Podcast Sobre Bitcoin
"Firefish is built by Bitcoiners who understand finance, care deeply about Bitcoin, and deliver excellent tech."
Eli Nagar
CEO of Braiins
"Many Bitcoiners are looking for ways to access liquidity without selling their BTC holdings. Firefish offers a secure and user-friendly solution for both lenders and borrowers."
Roman Reher
Blocktrainer
"Bitcoin is the ultimate collateral, and the people behind Firefish get that. Thanks to this project, I no longer have to sell my Bitcoin while still being able to leverage its economic power."
Kicom
Youtuber & Journalist
Endorsed by respected names in Bitcoin
Endorsed by respected names in Bitcoin
Firefish Europe s.r.o. (ID: 55912974) is authorised as a crypto-asset service provider (CASP) under Regulation (EU) 2023/1114 (MiCA) to provide crypto-asset services referred to in Article 3(1) (16)(a), (c), (d) and (j). This authorisation covers crypto-asset services provided within the Firefish platform offering —operation of the bitcoin collateral escrow environment, liquidation exchange of collateral, and related on-chain transfers. Any other services available through the Firefish platform or Firefish activities connected to the platform operation fall outside the scope of MiCA and are not covered by this authorisation.
©2026 Firefish. All rights reserved.
Firefish
Firefish Europe s.r.o. (ID: 55912974) is authorised as a crypto-asset service provider (CASP) under Regulation (EU) 2023/1114 (MiCA) to provide crypto-asset services referred to in Article 3(1) (16)(a), (c), (d) and (j). This authorisation covers crypto-asset services provided within the Firefish platform offering —operation of the bitcoin collateral escrow environment, liquidation exchange of collateral, and related on-chain transfers. Any other services available through the Firefish platform or Firefish activities connected to the platform operation fall outside the scope of MiCA and are not covered by this authorisation.
©2026 Firefish. All rights reserved.
Firefish
Firefish Europe s.r.o. (ID: 55912974) is authorised as a crypto-asset service provider (CASP) under Regulation (EU) 2023/1114 (MiCA) to provide crypto-asset services referred to in Article 3(1) (16)(a), (c), (d) and (j). This authorisation covers crypto-asset services provided within the Firefish platform offering —operation of the bitcoin collateral escrow environment, liquidation exchange of collateral, and related on-chain transfers. Any other services available through the Firefish platform or Firefish activities connected to the platform operation fall outside the scope of MiCA and are not covered by this authorisation.
©2026 Firefish. All rights reserved.
Firefish