Firefish

GM 🧡

Which Bitcoin conferences are you attending before year-end?

We already have users from 78 countries. If you see us anywhere, come say hello. https://blossom.primal.net/1098d86fa65ea4d204d49a845c4f8fa5f78b44c10538e0e1d738135f3b52522d.jpg

Paying capital gains tax on Bitcoin? Fkn bearish!

Borrow against your BTC instead. Keep the upside, skip the taxable sale, and short the fiat ponzi system.

On Firefish your Sats sit in a 3-of-3 multisig. Rehypothecation is technically impossible.

Selling your Bitcoin means giving it to BlackRock and Saylor.

The rich don't sell assets. They borrow against them.

Together with Braiins we wrote a book on how to live off your Bitcoin.

It covers everything you need to know so you never have to sell BTC again.

Bitcoin-backed loans so simple, even your grandma can use them.

Introducing the fastest way to borrow against Bitcoin. Firefish Wallet is now LIVE.

A cleaner settlement experience for Instant fiat Bitcoin-backed loans: ✅funds in seconds ✅built-in privacy ✅automatic transfer verification ✅seamless experience

Same Bitcoin-backed borrowing. Better money movement. https://blossom.primal.net/1d125e62b7f90c9277384f1c3f93206aec0cc585c772c737d1441c8e9ab0a91a.mp4

The End of Bitcoin Hype? https://blossom.primal.net/656b94424dd0334c22c205a52fd41d38ad9ed0e8dfb515e2acc1e7f0e0ffd109.mp4

"Once I learned about Bitcoin I was like: This is it!" - Martin Matejka, CEO Firefish

Firefish at BTCPrague 2026. Lots to come! Bullish as always, LFG🔥

Zero or Infinite: Choose a Side -

Bitcoin collateralized on Firefish 🔥🐟

P2P | Non custodial

Star Trek is Communism

Discreet Log Contracts (DLCs) are often misunderstood.

Unfortunately, most resources are too vague or too dense.

🔗 https://firefish.io/resources/demystifying-discreet-log-contracts-dlcs

We bridge this gap by providing a detailed yet comprehensible explanation of DLCs.

Here’s what you’ll learn ✅Beyond Multisig: Why DLCs are more private and scalable ✅Adaptor Signatures: The cryptographic foundation making it possible ✅The Math: How anticipation points and attestations work ✅History of DLCs: Evolution from Dryja’s original proposal ✅Multiple oracles and numerical optimizations

I Love Dictators!

Bitcoin vs Real Estate: Capital Shift

Many long-term Bitcoin holder hit this moment eventually.

You think in years. You've survived the bear markets, the headlines, the people telling you to sell. Your conviction is intact.

Then life shows up. A repair bill. A tuition payment. An opportunity that needs cash now.

And suddenly you're staring at your stack wondering if this is the moment you finally break.

Many sell. They take the tax hit, lose the upside, and spend the next bull run doing the math on what they gave up.

The other option: borrow against it.

Lock your Bitcoin in on-chain escrow, get the fiat you need, and stay fully exposed to the upside. Repay on your terms. Get your Bitcoin back.

No centralized custodian. No rehypothecation. No selling.

Only 2–3% of Bitcoin is collateralized today. Over 60% of real estate is mortgaged. Mortgages didn't create debt; they unlocked trillions in productive capital.

Bitcoin credit is the same curve. Just earlier.

27,000+ users (borrowers and investors) across 70+ countries have already figured this out on Firefish. https://blossom.primal.net/15f995e26af62ef57016869c374e4e733619e0a2c6ce8ed07e9d143030b85cf2.jpg

Why is Bitcoin correlated with Software Stocks? - with Joe Consorti

For a limited time only.

Instant Loan in USDT with 0 fees.

✅ Get funded within 24 hours ✅ 3-24 month tenors ✅ Request your loan in just 10 minutes

🔗 https://firefish.io/usdt

Why homes are rising in value despite no improvements

Loan 21,021 registered.

Bitcoin credit, the way it was meant to be. https://blossom.primal.net/9af0cb87955bd4d9224c9089bfefe49be9a422d21ce406071a7672e1f18b8000.png

666 subscribers on YouTube 😈

Be the hero. Be 667.

The real estate collateral era is over.

The Bitcoin collateral era has begun.

Loans from €800 for up to 24 months.

✅27000 users in 70+ countries ✅Public-source protocol ✅Market-driven interest rates ✅P2P ✅Non-custodial ✅4400+ BTC collateralized
✅Rated 4.8/5 on Trustpilot ✅BTC native

Yesterday, Bitcoin fell to its lowest level since October 2024.

This triggered margin calls for some borrowers. 1.7% of processed loans were impacted, affecting 0.6% of all platform users.

Meanwhile, 4,800+ users topped up collateral in the last 7 days.

If you have an active loan, here's what matters: ✅ You get three margin call warnings on Firefish (at CHI 33%, 22%, 11%) before liquidation at CHI 0%. These give you time to respond.

✅ Your options: Add Bitcoin collateral (instant) or pay down your loan (takes longer).

Got a BTC loan? This one metric makes all the difference👀

Bitcoin's down approx. 40% from >$126k to $77k. That means, if you've taken a loan against Bitcoin, your loan-to-value (LTV) ratio just moved with it.

This exact scenario played out in Q4 of last year. Through a 35% volatility range, Firefish users made 1,000+ proactive adjustments. Result? Zero liquidations.

What felt comfortable at the peak can feel tight right now. The difference between panic and control? Knowing exactly where you stand.

Three things that keep you safe:

1. Know your numbers in real-time Your Collateral Health Indicator (CHI) shows exactly where you stand. 100% = fully healthy. As it approaches 0, it's time to act. No guessing, no surprises.

2. See it coming On Firefish, margin calls trigger at 73%, 79%, and 86% LTV (or CHI 33%, 22%, 11%). You receive email alerts at each level. That's your signal to make a move before liquidation becomes a risk.

3. You control the outcome Two options when you get a margin call: • Top up collateral (add more BTC to your escrow) • Pay down your loan (reduce your exposure)

The buffer matters. Firefish uses a conservative 50% LTV from the start. That's not restrictive, it's protective. It gives you room to breathe during drawdowns like this one.

Bitcoin's volatile. That's not changing (given it's history so far). Firefish is built around that reality. You're not avoiding the swings; you're managing through them with complete visibility into your position and the tools to adjust when needed.

Check your dashboard. Know your CHI. Stay proactive. That's how you navigate this without losing sleep.

Borrow up to 50,000 USDC & get funds in 24 hours🤩

✅Repayment: Until Jan 2028

✅Rate: from 9.5% (up to 10.5% for 24M)

✅Structure: Bullet (no monthly payments)

Lock in liquidity without selling your Bitcoin. Just one final lump sum repayment.

Your collateral is secured in a 3-of-3 multisig escrow where no single party has access.

Accepting Bitcoin ≠ being Bitcoin-native.

Bitcoin-native means: ✅ P2P, not intermediated ✅ Secure by code, not trust ✅ Bitcoin-only, no tokens ✅ Transparent, verifiable, on-chain ✅ Built for low time preference

That’s how Firefish is built.

Earn up to 15% APY.

✅ Zero fees ✅ Guaranteed yield ✅ Flexible duration ✅ Low risk

Did you know? EUR loans on the Firefish marketplace are the most affordable they've been in over a year.

Get a 12-month loan at less than 9.5% p.a. 🤩

That's what happens in a P2P marketplace with no middlemen.

Used our marketplace?

Drop us a review on what you think. It helps.

https://www.trustpilot.com/review/firefish.io https://blossom.primal.net/3c1c21a051fc5ff0b2b280f9747e50efcc8358ac86a34cdbac80b635d50a54a6.png

Firefish explained in just over 2 mins!

Most lending platforms set your interest rate. Firefish doesn't.

Here, borrowers propose. Lenders choose. Both parties negotiate directly and there's no middleman dictating terms.

Real price discovery for Bitcoin-backed loans.

P2P, as it should be.

Bitcoin Paraguay meetup in Asunción 🇵🇾

Beginner workshops, first real transactions, and conversations about building circular economies on the ground.

Proud to support @npub1l57mdhhlkuulspszd6qarjxennpytglns6kth2agmjvrwyx8aqdqgj645x

Big thanks to our friend @npub1g8n0yzcl92kjjnk59s9uqdyrtd38z6gvt8fa5tsr2uhespsynezs6lemp2 for doing the work on the ground.

https://blossom.primal.net/6e1ff8e0ea83b3f4eaf3725aa0a288f9f49ab3fc69a7f4c4250c888de5e100cb.png https://blossom.primal.net/b53f9666696d2ec6571592c73d4663b62e6004a067bfb7f198e43ca4d9ed11ec.png

🇦🇺 Filo from Australia needed cash twice in 30 days. He didn't approach a bank. He didn't sell his Bitcoin. He opted for a 3rd way.

He borrowed against his Bitcoin.

Here's what happened: he submitted a loan request with his own terms on Firefish, including the interest rate, matched with a lender, and cash landed in his account within 24 hours. His Bitcoin stays in a non-custodial escrow the entire time. He still owns every satoshi.

Then he did it again.

No bureaucracy of banks. No selling. No credit checks. Just P2P lending backed by Bitcoin as collateral.

The takeaway?

You don't have to choose between conviction and liquidity anymore. Filo needed cash twice, got it twice, and his stack stayed intact. That's Bitcoin working as productive capital, not just sitting idle.

17 years ago today, the Genesis Block was mined.

Bitcoin became the first asset you could truly own without permission.

So why sell it? https://blossom.primal.net/f5a161a135fc13116ea38fe676df890e82dee6741bfbe814552d87f2cccfea63.png

The majority of Bitcoin holders have never borrowed against their Bitcoin. But they're curious. 🤔

We ran a poll on X last week asking: "Have you borrowed against your Bitcoin?" The curious group was the largest segment. More people are interested in using Bitcoin as collateral than those who actually have.

We are still so early. Think about it: Bitcoin is a $1.8 trillion asset, but only 2-3% of it is collateralised. Meanwhile, over 60% of real estate is mortgaged. The gap between what exists and what's possible is enormous.

Most Bitcoin holders are still: ✅ Hodling ✅ Watching ✅ Waiting for the infrastructure to mature

The rails are being built right now. Last year, nearly 3,100 BTC had been collateralised on Firefish. The latent demand is massive.

Here's what's inevitable: Bitcoin will move (is moving) from Phase 1 (store of value) to Phase 2 (productive collateral). Not because we want it to, but because idle capital always finds a way to become productive capital.

Bitcoin credit won't arrive with a bang. It will arrive (is arriving) quietly. Then suddenly feel obvious.

We are still so early.

✅ 3,500 BTC processed ✅ 25,000+ users across 69 countries ✅ 2.5 days average loan activation time ✅ Zero liquidations through Bitcoin's price volatility ✅ 4.8★ Trustpilot rating

https://firefish.io/blog/building-bitcoin-s-credit-rails-our-2025-year-in-review

Thank you for 2025. Here's what we built together.

2026 loading...🔥

HODLing is step one. Using it as collateral is step two.

Our book Bitcoin: The Ultimate Collateral is now a FREE audiobook.

Published on the

channel:

Bitcoin on Christmas Eve🎄

2010: $0.25 2011: $4.22 2012: $13.35 2013: $690 2014: $318 2015: $455 2016: $895 2017: $13,983 2018: $3,779 2019: $7,193 2020: $24,705 2021: $50,440 2022: $16,828 2023: $43,146 2024: $98,700 2025: $86,800

Never sell. Live off it.

👀

Don't postpone that vacation 🎄

Instant Loan in USDC with fixed terms. Get funded immediately.

Current rates:

✅ 3m & 6m @ 9.5% APR

✅ 12m & 18m @ 9.9% APR

✅ 24m @ 10.5% APR

Bitcoin-backed P2P lending. Adopted globally.

Never sell your Bitcoin. Live off it.

Buys the dip Self-custody Never sells Lives off Bitcoin Chills

Never sell your Bitcoin. Live off it.

Use it as collateral and get your loan funded.

On the world's largest P2P lending marketplace.

Non-custodial, Bitcoin-native, with public source code.

See how Firefish works 👇 (Sound on 🔊)

Q4 so far has seen Bitcoin range between $126k and $82k. That's a 35% price range.

Firefish has seen >800 top-ups in the quarter so far.

ZERO liquidations.

Manage your loan and collateral responsibly.

Bitcoin collateralized credit is 3,800x smaller than real estate and that's about to change…

At Bitcoin Corporate Day, our CFO Tomas Dzurilla shared where Firefish stands in building Bitcoin-collateralized credit rails.

The numbers tell the story: ◆ At $152 trillion real estate is the world's largest credit asset (thanks to modern mortgage credit rails).

◆ Securities follow at $45 trillion.

◆ Bitcoin collateralized credit? Just $40 billion today. That's 3,800 times less than real estate.

But we believe Bitcoin collateralized credit will grow 20,000% over the next 10 years.

Today, roughly 2% of Bitcoin is collateralized. In 10 years, we expect that to reach 40%, similar to real estate collateralization rates in developed countries also thanks to credit rails that we are helping to develop.

What we've already built at Firefish: ✅ Non-custodial Bitcoin-backed lending marketplace ✅ 25,000+ users ✅ Over $125 million in notional loans ✅ $300 million of value transacted ✅ 0.002% default rate ✅ Average LTV of 45%

Users have paid $1 million in interest but saved $16 million in Bitcoin appreciation versus selling, plus avoided taxable events.

The regulatory environment is supporting this growth - from SEC approval of ETPs to MiCA in Europe.

How it works: Borrowers pledge Bitcoin as collateral, lenders provide cash through our marketplace, and escrow lives on the Bitcoin blockchain. We never take ownership of the asset.

Bitcoin's usefulness is expanding beyond just holding.

Watch the video with Tomas' talk here:

1 day to go

We'll be there. Come say hi 🙌

Get a loan for up to 24 months!

✅ Public-source protocol
✅ Audited smart contracts
✅ BTC-native ✅ P2P ✅ 2900+ BTC collateralized
✅ $500M+ value transacted
✅ Rated 4.8/5 on Trustpilot ✅ Available globally

Buenos Aires is toxic 🔥

Non-custodial, P2P, public source code isn't marketing. It's our foundation.

Your Bitcoin collateral is locked using a 3-of-3 multi-signature contract.

2,800+ BTC collateralized. All using PSBTs.

We can't move your funds into custody.

It's how we built it. It's how it works.

🇦🇷 We're heading to Buenos Aires for LABITCONF, Latin America's biggest Bitcoin event, now in its 13th year.

We'll be there talking about non-custodial, open, and P2P Bitcoin-backed loans.

If you're there Nov 7-8, come find Igor and Finn.

Let's talk. https://blossom.primal.net/e584a78de5f54f5800aa840f7eb6b3f29aece2e2bea258721533264ef847da08.png

🌎 Firefish is headed to Latin America.

This month, we will be at Buenos Aires & San Salvador.

Come meet us La Conferencia Latinoamericana de Bitcoin & Blockchain (LABITCONF) and Adopting Bitcoin

• 24,000+ users • 2,800+ BTC collateralized • $500M+ value transacted

Let's talk Bitcoin-backed loans.

Bitcoin Whitepaper Day special 🔥

To celebrate this, Firefish is offering 21% off all fees for the next 48 hours.

How it works: ✅Marketplace Loans: Discount applies automatically as soon as an investor accepts loan request

✅Instant Loans: Discount applies immediately https://blossom.primal.net/8bf09434bfc38f25bc545171fdb2ef117a557b198ef2c87e972dbdee91c11f7a.png

Don't trust, verify!

The Firefish Source Code is now publicly available.

👉 https://github.com/Firefish-io/firefish-protocol

Banks loans: • Weeks of approval • Credit checks • High fees, overhead • Monthly payments • Geographic limits • "Trust us" mentality

Firefish P2P loans: ✅Day/s to match ✅No credit checks ✅Market rates ✅No monthly payments ✅Global USDC loans ✅Secured by code

Firefish Protocol is now being taught at Charles University Prague 🎓

Our lending protocol is part of the official curriculum at one of Europe's top technical universities.

Education = Adoption 🧡

Here's to building the Bitcoin credit rails for the next generation. https://blossom.primal.net/f607f8aabed4dbfcceb929f0cdafb4cdbf10d7d59801f535f605171cefa72390.png

We’re hiring a Tech Lead.

In this role, you will lead our technical vision and build the future of Bitcoin-backed lending.

Why join us: ✅ Real equity stake ✅ Small team, massive impact ✅ Hybrid (Prague + remote) ✅ Build actual Bitcoin products.

Apply here: https://www.startupjobs.com/job/78525/tech-lead-v-bitcoinovem-startupu-akcie