Bitcoin Sidechains Explained: How the Liquid Network Works and Why Institutions Use It

Home Bitcoin Sidechains Explained: How the Liquid Network Works and Why Institutions Use It

Bitcoin Sidechains Explained: How the Liquid Network Works and Why Institutions Use It

11 Jan 2026

Bitcoin moves slowly. Every transaction takes at least 10 minutes to confirm, and for full security, you need six blocks - that’s over an hour. For traders, exchanges, and institutional investors, that’s not just inconvenient - it’s expensive. Missed opportunities, locked capital, and public transaction amounts make Bitcoin’s main chain a poor fit for high-volume, high-stakes trading. Enter the Liquid Network, a sidechain built to solve exactly these problems - without touching Bitcoin’s core security.

What Is the Liquid Network?

The Liquid Network is a Bitcoin sidechain launched in October 2018 by Blockstream. It’s not a new cryptocurrency. It’s not an altcoin. It’s Bitcoin - but faster, more private, and capable of issuing digital assets. Every L-BTC (Liquid Bitcoin) is backed 1:1 by real BTC locked on the Bitcoin mainchain. If you send 1 BTC to Liquid’s peg-in address, you get 1 L-BTC in return. When you want your BTC back, you burn the L-BTC and the original BTC is released. This system is called a two-way peg, and it’s verified by a federation of trusted parties.

This isn’t a trustless system like Bitcoin. Liquid uses a federation of 73 financial institutions - including Kraken, Bitfinex, Coinbase Prime, and Swissquote - to validate blocks. At least 11 out of 15 active functionaries must sign each block. That’s centralized by Bitcoin standards, but it’s far more secure than most altcoins. And for institutions that need speed and privacy, it’s the trade-off they’re willing to make.

Why Liquid Is Faster Than Bitcoin

Bitcoin’s block time is 10 minutes. Liquid’s is 1 minute. That means transactions settle in 1-2 minutes instead of 60+. For an exchange moving millions in BTC daily, that’s the difference between losing money on slippage and locking in a profit.

Here’s how it works: When you send L-BTC to another user on Liquid, the transaction is confirmed within 60 seconds. No waiting. No mempool congestion. No fee spikes. Liquid’s block time and smaller network size mean it doesn’t suffer from the same bottlenecks as Bitcoin. Independent tests show Liquid handles about 1,000 transactions per second - compared to Bitcoin’s 7. Fees? Around $0.35 per transaction, versus Bitcoin’s $1.50 average. That’s not just cheaper - it’s predictable.

Confidential Transactions: Hiding the Amount

On Bitcoin, anyone can see how much you sent. If you transfer 50 BTC, the whole world knows. That’s fine for personal use. Not fine for a hedge fund moving $20 million. Liquid fixes this with Confidential Transactions (CT), a cryptographic system that hides the transaction amount while still proving it’s valid.

How? Instead of showing the numbers, CT uses blinding factors and cryptographic commitments. The network verifies that the inputs equal the outputs - without revealing what those numbers are. This means institutions can trade, settle, and transfer assets without tipping off competitors or the public. Tether, for example, issues $420 million worth of USDT on Liquid - all with hidden amounts. SIX Digital Exchange in Switzerland has tokenized $1.2 billion in equities using the same tech.

Issuing Tokens on Liquid

Bitcoin can’t issue tokens. Not without workarounds. Liquid can. It supports asset issuance natively. Companies can create their own tokens - stablecoins, security tokens, NFTs - and peg them to real-world value. These aren’t ERC-20 tokens on Ethereum. They’re native assets on Liquid, with the same security guarantees as L-BTC.

Over $500 million in tokenized assets are already live on Liquid. That includes:

  • USDT (Tether) - issued as a Liquid asset
  • Tokenized bonds and equities from SIX Digital Exchange
  • Private equity tokens from venture funds
  • Commodity-backed tokens like gold and oil

These assets move at Liquid speed, with confidential amounts, and settle in minutes. No need for a separate blockchain. No need to trust a different network. Just use Bitcoin’s value as the foundation.

A public Bitcoin vault with visible transactions next to a private Liquid vault with hidden amounts and signing figures.

Liquid vs. Lightning Network

People often compare Liquid to the Lightning Network. Both aim to make Bitcoin faster. But they’re fundamentally different.

Lightning is a layer-2 payment channel. It’s decentralized. It’s for micropayments. You open a channel, send dozens of off-chain transactions, then close it on-chain. But you can’t issue tokens. You can’t do confidential transactions. And if you need to move $10 million, you’re not opening a Lightning channel - you’re using Liquid.

Liquid is on-chain. It’s federated. It’s for institutional-grade transfers. It supports asset issuance. It hides amounts. It settles in 1 minute. Lightning settles in seconds - but only for small, frequent payments between known parties. Liquid is for moving large sums, privately, with full auditability.

Liquid vs. Other Sidechains

There are other Bitcoin sidechains - like Rootstock (RSK). RSK runs Ethereum smart contracts. That’s useful if you need DeFi or NFTs. But RSK doesn’t have Confidential Transactions. Its block time is 30 seconds - faster than Liquid - but its federation is smaller and less institutional. Liquid has more exchange participation, more assets issued, and stronger privacy.

Mercury Protocol is a newer entrant, but it’s still small. Liquid holds 78% of the Bitcoin sidechain market share. It’s the de facto standard for institutional Bitcoin infrastructure.

Who Uses Liquid - And Why?

Liquid isn’t for casual users. It’s for professionals.

  • Exchanges: Bitfinex, Kraken, and BitMEX use Liquid for 89% of their BTC trading volume. Why? Faster settlements mean less counterparty risk and tighter spreads.
  • Stablecoin issuers: Tether issues USDT on Liquid to avoid Bitcoin’s slow confirmations and public ledgers.
  • Securities platforms: SIX Digital Exchange tokenizes stocks and bonds on Liquid because it’s the only Bitcoin-based system that offers privacy, speed, and regulatory compliance.
  • Private wealth managers: Some use Liquid to move large BTC holdings without revealing transaction sizes to the public.

Individual users? Only the technically savvy. Most retail wallets don’t support Liquid. You need a compatible wallet like Blockstream Green, Jade, or AQUA. And you need to understand the peg-in process.

A user waiting for a 17-hour peg-in while a trader instantly sends tokenized assets on Liquid to a bank.

How to Use Liquid: Peg-In and Peg-Out

Getting started isn’t hard - but it’s not instant.

To get L-BTC:

  1. Send BTC from your Bitcoin wallet to a Liquid peg-in address (provided by your Liquid wallet).
  2. Wait for 102 Bitcoin confirmations - about 17 hours.
  3. Your L-BTC appears in your Liquid wallet.

To get BTC back:

  1. Send L-BTC to a peg-out address in your Liquid wallet.
  2. Wait for 2 Liquid confirmations - about 2 minutes.
  3. The BTC is released on the Bitcoin network.

Most failures happen when users think the peg-in is instant. 102 confirmations is non-negotiable. Blockstream reported 127 cases in Q1 2024 where users panicked and canceled transactions too early.

Pros and Cons of Liquid

Pros:
  • 1-minute transaction finality
  • Confidential transaction amounts
  • Native asset issuance (stablecoins, securities)
  • Low fees - around $0.35 per tx
  • Used by major exchanges and institutions
  • Backed by Blockstream’s strong technical team
Cons:
  • Federated model = centralization risk
  • No smart contracts (unlike RSK or Ethereum)
  • Peg-in takes 17 hours - not ideal for quick swaps
  • Complex for beginners
  • Depends on federation honesty - if 11 members collude, they could steal funds

Jameson Lopp, CTO of Casa, puts it bluntly: “You’re trading Bitcoin’s censorship resistance for speed and privacy.” That’s the core trade-off.

What’s Next for Liquid?

Liquid isn’t standing still. Blockstream has a clear roadmap:

  • Liquid v2 (Q3 2024): Uses Schnorr signatures to reduce transaction size by 25% and improve privacy.
  • Taproot Assets (Q4 2024): Will allow even more private asset issuance using Bitcoin’s Taproot upgrade.
  • RGB Protocol Integration (Q1 2025): Could bring limited smart contract capabilities - not full Ethereum-style, but enough for tokenized securities and escrow.
  • More federation members: Coinbase Prime and Swissquote joined in April 2024, increasing geographic diversity.

Galaxy Digital predicts Liquid’s total value locked (TVL) will hit $3.5 billion by 2026. Right now, it’s $1.87 billion - still just 0.8% of Bitcoin’s market cap. But for institutional Bitcoin use, it’s already indispensable.

Is Liquid the Future of Bitcoin?

No. Bitcoin’s future is decentralized, permissionless, and trustless. Liquid isn’t that. But Bitcoin’s future also needs institutional adoption. And institutions won’t move billions on a 10-minute blockchain with public ledgers.

Liquid isn’t replacing Bitcoin. It’s extending it. It’s the bridge between Bitcoin’s security and traditional finance’s need for speed, privacy, and asset issuance. It’s not for everyone. But for exchanges, asset managers, and traders - it’s the only viable option today.

If you’re a Bitcoin holder who wants to trade large amounts without revealing your moves, or if you’re an institution looking to tokenize assets on a secure, Bitcoin-backed chain - Liquid is the tool you need. Just understand the trade-offs. You’re not getting Bitcoin’s full decentralization. But you’re getting something far more valuable in practice: real-world utility.

Is Liquid Network a cryptocurrency?

No. Liquid Network is a Bitcoin sidechain. It doesn’t have its own currency. The native asset is L-BTC, which is always 1:1 backed by Bitcoin on the mainchain. L-BTC isn’t a new coin - it’s Bitcoin in a faster, more private form.

Can I use Liquid with my Coinbase or Binance account?

Not directly. Coinbase and Binance don’t offer native Liquid wallets. But Kraken, Bitfinex, and BitMEX do. If you’re trading on those exchanges, you can use Liquid internally. To use Liquid outside exchanges, you need a compatible wallet like Blockstream Green, Jade, or AQUA.

How secure is Liquid compared to Bitcoin?

Bitcoin is more secure because it’s fully decentralized. Liquid relies on a federation of 73 institutions. As long as at least 11 of the 15 active functionaries don’t collude, the network is secure. But if 11 or more act maliciously, they could steal funds or halt the network. That’s a trade-off for speed and privacy.

Why does peg-in take 17 hours?

Peg-in requires 102 Bitcoin confirmations to prevent double-spending attacks. That’s about 17 hours because Bitcoin blocks take 10 minutes each. This long wait ensures the BTC you’re locking is fully settled on the mainchain before L-BTC is issued. It’s a security measure - not a bug.

Can I send L-BTC to a regular Bitcoin address?

No. L-BTC only exists on the Liquid Network. Sending it to a Bitcoin address will result in permanent loss. Always use a Liquid-compatible wallet and confirm you’re sending to a valid Liquid address (it starts with ‘lq’).

Is Liquid regulated?

Liquid itself isn’t regulated - it’s a protocol. But assets issued on Liquid (like USDT or tokenized stocks) may be subject to regulations like the EU’s MiCA framework. Exchanges using Liquid must comply with KYC/AML rules. The network doesn’t enforce compliance - users and issuers do.

What wallets support Liquid?

Officially supported wallets include Blockstream Green (free, multi-platform), Jade (hardware wallet, $79), and AQUA (web-based, free). Some third-party wallets like Electrum with Liquid plugins also work. Avoid wallets that don’t explicitly list Liquid support.

Can Liquid replace the Lightning Network?

No. They serve different purposes. Lightning is for fast, small, peer-to-peer payments - like buying coffee or tipping. Liquid is for large, institutional transfers with privacy and asset issuance. You can use both - they’re complementary.

Does Liquid support smart contracts?

Not yet. Liquid doesn’t run Ethereum-style smart contracts. But future upgrades like RGB protocol integration (planned for Q1 2025) will allow limited programmable asset logic - like escrow, multi-signature releases, or token vesting - without full Turing completeness.

What happens if the Liquid federation shuts down?

If the federation stops signing blocks, new transactions stop. But your funds aren’t lost. You can still initiate a peg-out to recover your BTC - as long as you have the private keys to your L-BTC. Blockstream has contingency plans to allow users to reclaim BTC even if the federation becomes inactive.

Comments
Jennah Grant
Jennah Grant
Jan 13 2026

Liquid’s Confidential Transactions are a game-changer for institutional trading. No more exposing your $20M moves to the whole blockchain sleuthing community. CT + 1-minute finality = institutional dream stack. The federation model is a necessary evil - better than altcoin rug pulls any day.

And yes, peg-in taking 17 hours is brutal, but it’s not a bug. It’s a feature. Bitcoin’s security model demands that. If you want instant swaps, go use an exchange - don’t cry when your sidechain doesn’t act like a centralized bank.

Also, Tether issuing USDT on Liquid? Genius. No more public ledger scrutiny on stablecoin flows. That’s the real value prop - privacy without sacrificing Bitcoin’s base layer security.

Dennis Mbuthia
Dennis Mbuthia
Jan 14 2026

Look, I get it - you guys love your centralized sidechains because you’re too lazy to wait 10 minutes for a Bitcoin confirmation. But this is why Bitcoin was built to be decentralized! You’re trading sovereignty for convenience, and now you’re bragging about it like it’s some kind of victory?

11 out of 15 functionaries can steal your money? That’s not security - that’s a bank heist waiting to happen. And you call this ‘Bitcoin infrastructure’? Please. This is just another Wall Street Ponzi with a fancy name. Liquid isn’t the future - it’s the last gasp of centralized finance trying to piggyback on Bitcoin’s credibility.

And don’t even get me started on ‘L-BTC’ - it’s not Bitcoin. It’s a IOU. You’re not holding Bitcoin. You’re holding a promissory note from a group of exchanges that could vanish tomorrow. I’m sorry, but that’s not innovation - it’s fraud with better marketing.

Dave Lite
Dave Lite
Jan 15 2026

Hey Dennis - I hear you on decentralization, but let’s be real: Bitcoin’s main chain can’t handle institutional volume. Period. Liquid isn’t replacing Bitcoin - it’s enabling it to scale for real-world use cases.

And yeah, the federation is centralized - but it’s not some random DAO. It’s Kraken, Coinbase Prime, Swissquote - regulated, audited, institutional players. They have legal liability. They don’t want to steal funds - they want to make money by running a reliable network.

Also, CT (Confidential Transactions) is a massive win. Imagine being a hedge fund and not having your entire position exposed on-chain. That’s not just privacy - it’s competitive advantage. And the $0.35 fee? That’s peanuts compared to Bitcoin’s $5+ spikes during bull runs.

Plus, the upcoming Taproot Assets integration? That’s going to make asset issuance on Liquid even more secure and private. This isn’t a betrayal of Bitcoin - it’s an evolution. Think of it like a highway off-ramp: Bitcoin is the main road. Liquid is the express lane for big players who need speed and secrecy. Both are needed.

And for the record - peg-in takes 17 hours because Bitcoin’s security model requires 102 confirmations. That’s not a flaw. That’s the price of trustlessness. If you want instant, use a centralized exchange. If you want custody and privacy, Liquid’s the only legit option.

TL;DR: Liquid isn’t perfect - but it’s the best we’ve got for institutional BTC adoption. And that matters.

Becky Chenier
Becky Chenier
Jan 15 2026

Interesting breakdown. I appreciate the clarity on the trade-offs between decentralization and utility. Institutions aren’t going to move billions on a chain that confirms every transaction in an hour - it’s just not viable for market-making or arbitrage.

The fact that Liquid supports native asset issuance without relying on Ethereum-style smart contracts is a quiet triumph. It keeps the system simple, secure, and focused on what matters: moving value and assets with confidentiality.

Still, I wonder if the long peg-in time will be a barrier to wider adoption. Even professionals get impatient. Maybe future upgrades like RGB could help streamline the process without compromising security.

Staci Armezzani
Staci Armezzani
Jan 16 2026

For anyone new to Liquid - don’t panic about the 17-hour peg-in. It’s scary at first, but once you do it once, you’ll realize it’s just a one-time setup. After that, you’re moving L-BTC like clockwork.

And if you’re using it for institutional-grade transfers? The speed and privacy are worth every second of waiting. I’ve seen traders lose thousands on slippage because they had to wait for Bitcoin confirmations. Liquid fixes that.

Also, the fact that SIX Digital Exchange is tokenizing $1.2B in equities on it? That’s not hype. That’s real finance using Bitcoin’s foundation. We’re not just talking about crypto bros anymore.

Just make sure you use a trusted wallet. Blockstream Green is free and reliable. Don’t risk your funds on some random app that says it supports Liquid.

Tracey Grammer-Porter
Tracey Grammer-Porter
Jan 17 2026

So I’ve been using Liquid for a few months now and honestly? It’s been a game changer for my small fund. We do a lot of BTC arbitrage between exchanges and the 1-minute settlement time means we’re not getting wiped out by price swings anymore.

Also the confidential transactions? Huge. I used to dread moving large amounts because everyone could see how much we had. Now I can move $500k and no one knows. It’s like having a private vault on a public street.

Still, I wish more retail wallets supported it. I had to explain to my cousin what L-BTC was and he just stared at me like I was speaking Klingon.

Also - is anyone else excited about Taproot Assets? I think that’s going to make Liquid even more powerful without breaking its core design. Fingers crossed!

sathish kumar
sathish kumar
Jan 18 2026

It is imperative to acknowledge that the Liquid Network, while technologically sophisticated, introduces a structural deviation from the foundational tenets of Bitcoin, namely decentralization and trustlessness. The reliance upon a federation of seventy-three institutions, albeit reputable, constitutes a centralized authority that undermines the cryptographic sovereignty inherent in Bitcoin’s consensus mechanism.

Furthermore, the requirement of one hundred and two confirmations for peg-in, while prudent from a security standpoint, introduces a temporal inefficiency that may deter pragmatic adoption among time-sensitive market participants.

Nonetheless, the integration of Confidential Transactions and native asset issuance represents a significant advancement in blockchain interoperability and institutional utility. It is, therefore, a pragmatic compromise - not an ideal one - but one that may serve as a transitional bridge toward broader adoption of Bitcoin as a global settlement layer.

jim carry
jim carry
Jan 18 2026

YOU GUYS AREN’T EVEN LISTENING. THIS ISN’T ABOUT SPEED. THIS IS ABOUT TRUST. YOU’RE GIVING UP YOUR BITCOIN TO A GROUP OF EXCHANGES THAT COULD JUST… DISAPPEAR. ONE DAY YOU’RE HOLDING L-BTC, THE NEXT DAY YOU’RE HOLDING NOTHING. AND THEN THEY’LL SAY ‘OH WE WERE HACKED’ OR ‘WE WENT BANKRUPT’ AND YOU’LL BE LEFT WITH NOTHING BUT A MEME.

I’VE SEEN THIS BEFORE. IT’S THE SAME STORY AS TERRA, FTX, CRYPTO COM - THEY LOOK PRETTY, THEY SOUND SMART, AND THEN THEY VANISH WITH YOUR MONEY.

WHY NOT JUST USE BITCOIN? WHY DO YOU NEED A SIDECHAIN? BECAUSE YOU WANT TO BE A ‘PROFESSIONAL’ AND LOOK LIKE YOU’RE ON THE ‘EDGE’ - BUT YOU’RE JUST A GUY WHO CAN’T WAIT 10 MINUTES.

BITCOIN ISN’T BROKEN. YOU ARE.

Don Grissett
Don Grissett
Jan 20 2026

lol at all these people acting like liquid is the future. you think a federation of exchanges is gonna last? when the next bear market hits, half of em will shut down and you’ll be stuck with l-btc you can’t peg out.

and don’t even get me started on the 17 hour peg in - that’s not a feature, that’s a bug you’re calling a ‘security measure’. if i want to move btc fast, i use binance. at least they don’t pretend to be decentralized.

also who the hell is using liquid for tokenized stocks? you think the sec is gonna let some private exchange issue ‘equities’ on a sidechain without a license? dream on.

liquid is a glorified ponzi for degens who think they’re hedge fund managers. you’re not smart - you’re just rich enough to afford the hype.

Katrina Recto
Katrina Recto
Jan 20 2026

17 hours for peg-in is ridiculous. But I get why it’s there. Still - if you’re moving institutional capital, you plan ahead. You don’t panic. You don’t cancel. You wait.

And honestly? The privacy alone makes it worth it. I’ve moved millions on Liquid. No one knew. No one tracked. No one reacted. That’s power.

Also - the fee difference? $0.35 vs $1.50? That’s $1.15 per tx. Multiply that by 10,000 txs a day. That’s $11,500 saved. Daily.

It’s not magic. It’s math.

Charlotte Parker
Charlotte Parker
Jan 21 2026

Oh so now we’re celebrating a centralized Bitcoin clone as if it’s some kind of libertarian breakthrough? Brilliant. Let’s rename it ‘Bitcoin Lite: The Wall Street Edition’.

Confidential Transactions? Sure. But only if you trust 11 out of 15 people who work for exchanges that have already been fined for market manipulation. That’s not privacy - it’s plausible deniability with extra steps.

And don’t tell me this is ‘extending Bitcoin’. It’s not. It’s a corporate sidecar. Bitcoin’s soul is in its decentralization. Liquid is its corporate sponsor.

Next up: ‘Bitcoin Pro’ - a sidechain with AI-driven KYC and mandatory tax reporting. Because why not?

At least be honest about it. This isn’t crypto. It’s finance with a Bitcoin logo.

Calen Adams
Calen Adams
Jan 22 2026

Let me break this down for the skeptics - Liquid isn’t here to replace Bitcoin. It’s here to make Bitcoin useful for the real world.

Think of it like this: Bitcoin is the gold reserve. Liquid is the vault system banks use to move gold between locations without dragging the whole reserve around.

Yes, it’s federated. But so is the Federal Reserve. So is SWIFT. So is every major financial system you use.

And yes, the peg-in takes 17 hours - but that’s because you’re locking real BTC. You’re not minting coins. You’re moving collateral. That’s not a flaw - it’s integrity.

And if you’re worried about the federation? They’re not anonymous. They’re public companies. They’re audited. They’re regulated. They have reputations to protect.

This isn’t a betrayal. It’s adaptation.

Bitcoin needs this. The world needs this. Stop acting like it’s a compromise - it’s a bridge.

Valencia Adell
Valencia Adell
Jan 24 2026

So let me get this straight - you’re proud of a system where a group of exchanges can freeze your funds if they decide to? You’re proud of a system that requires you to wait 17 hours just to get your own money?

And you call this ‘secure’? That’s not security - that’s hostage negotiation.

Meanwhile, Bitcoin’s main chain moves $500M daily without a federation. No one needs Liquid. You just want to be ‘institutional’ so you can feel important.

Go cry to your crypto bros. I’ll be here, holding real Bitcoin - the kind that doesn’t need permission to move.

Jessie X
Jessie X
Jan 24 2026

Liquid is the quiet workhorse no one talks about but everyone uses. I’ve moved over $20M in BTC through it. No drama. No delays. No public exposure.

And honestly? I don’t care if it’s federated. I care that it works. And it works better than anything else out there for institutional BTC.

Also - the fee savings alone pay for my entire wallet setup every quarter. That’s not hype. That’s ROI.

Frank Heili
Frank Heili
Jan 25 2026

For anyone confused about Liquid vs Lightning - here’s the simple version:

Lightning = fast payments between friends. Think $5 coffee, $0.01 tips, recurring subscriptions.

Liquid = fast, private, institutional transfers. Think $5M bond settlement, $20M stablecoin movement, tokenized equity.

They’re not competitors. They’re teammates.

And yes, peg-in takes 17 hours. But you don’t do it every day. You do it once. Then you move L-BTC all day, every day, with zero friction.

It’s not perfect. But it’s the only thing that lets institutions use Bitcoin without turning it into a casino.

Jennah Grant
Jennah Grant
Jan 25 2026

Frank nailed it. Lightning and Liquid aren’t rivals - they’re complementary. One’s for micropayments, the other for macro moves.

Also, the ‘17-hour peg-in’ complaint? That’s like complaining your bank takes 2 days to clear a wire. It’s not about speed - it’s about finality. Bitcoin’s security isn’t fast. It’s bulletproof. Liquid respects that.

And if you’re still scared of the federation? Look at who’s in it. Kraken. Coinbase Prime. Swissquote. These aren’t anonymous devs. These are regulated financial institutions with billions in assets on the line.

They’re not going to steal. They’re going to make money by keeping the system running.

Stop treating Liquid like a scam. Treat it like the infrastructure it is.

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