Bitcoin (BTC) Sidechain Liquid Restores Full 1:1 Backing for LBTC

By Nodora News · 3 November 2026

Liquid Network says every LBTC is backed 1:1 by bitcoin (BTC) again after a final 250 BTC deposit closed the gap left by its $320 million September exploit.

Liquid Network, the Bitcoin (BTC) sidechain run by a federation of companies led by Blockstream, says every one of its LBTC tokens is backed one-to-one by real bitcoin again. The Liquid Federation announced on Monday, November 2, that its reserves were "fully restored" after a final 250 BTC transfer. That closes a shortfall of roughly 600 BTC left by a software exploit in early September that, at its worst, drained almost the entire reserve, an attack CoinDesk valued at about $320 million.

Key takeaways

• The Liquid Federation says LBTC is fully backed 1:1 by bitcoin again after a final 250 BTC deposit.
• A September 6 bug let an attacker mint about 4,000 unbacked LBTC and redeem them for real BTC.
• The attacker returned 3,400 BTC a day later, leaving a gap of roughly 600 BTC (about $46 million today).
• Blockstream had committed to cover the gap, according to JAN3 CEO Samson Mow, but the federation has not formally said who paid.
• Swaps between BTC and LBTC already work at 1:1 through providers like SideSwap; direct federation withdrawals are still under extra controls.

What is Liquid and how does LBTC work?

Liquid is a sidechain, a separate blockchain that runs alongside Bitcoin. Exchanges and traders use it to move bitcoin faster and more privately than the main network allows. To get on, users lock BTC with the federation, a group of member companies that jointly control the reserve wallet, and receive LBTC (also written L-BTC) in return. Each LBTC is meant to be redeemable for exactly one bitcoin at any time.

That promise only holds if the reserve wallet contains at least as much BTC as there is LBTC in circulation. For almost two months, it did not.

What happened in the September Liquid exploit

On September 6, an attacker found a flaw in Elements, the open-source software Liquid runs on. The bug sat in the code that caches rangeproof checks, the cryptographic proofs that confirm hidden transaction amounts are valid. It let the attacker create about 4,000 LBTC with nothing behind them and then redeem those tokens for real bitcoin from the reserve.

The damage, based on Blockstream's incident report at the time:

• Reserve before the attack: about 4,205 BTC
• Reserve after the attack: about 197 BTC
• Returned the next day: 3,400 BTC, by an attacker who claimed to be a white-hat hacker
• Remaining hole: roughly 600 BTC

Direct redemptions through the federation, known as peg-outs, were suspended while the team worked on a fix and a plan to refill the reserve.

How the 600 BTC gap was closed

The refill came in stages. Transfers into the reserve wallet began in late October, according to TokenPost. A 300 BTC top-up brought estimated backing to about 94% and cut the gap to roughly 250 BTC, The Defiant reported. A final 250 BTC deposit then brought the reserve level with the LBTC supply.

Samson Mow, CEO of JAN3 and a member of the Liquid Network Alliance Technical Committee, confirmed that the reserve wallet had received the last deposit and said Blockstream had committed to covering the shortfall. Even so, CoinDesk noted that the federation's own announcement did not say where the final roughly 600 BTC, worth more than $40 million, came from.

Anyone can check the numbers. The federation says users running a Liquid node can verify the proof of reserves directly, and the reserve balance is also shown on a public dashboard.

Why Liquid's full backing matters for Bitcoin

LBTC is a wrapped form of bitcoin, so its value rests entirely on trust that the coins behind it exist. A partly backed LBTC would have been a risk for every exchange and trader holding it, and a drag on confidence in Bitcoin sidechains in general.

The timing also stands out. Crypto has had a brutal run of security incidents, from the record $6.3 billion Binance hack to the Mercado Bitcoin breach in Brazil. In each case, the question after the attack has been the same: will users be made whole? Liquid's answer is yes, two months on, with reserves that can be checked on-chain.

Bitcoin market reaction

The news is unlikely to move Bitcoin's price on its own, and the wider market stayed soft. Prices on OKX at the time of writing:

• Bitcoin (BTC): about $77,120, down roughly 0.9% in 24 hours
• Ether (ETH): about $2,266, down roughly 0.8%

You can follow live prices on the Nodora charts page.

What to watch next for Liquid and LBTC

• Direct peg-outs: the federation says full reserves were a condition for restarting them, but withdrawals still run under "enhanced operational controls" with no restart date yet.
• Who paid: a formal statement on how the final 600 BTC was funded.
• Governance changes: the federation has promised to modernise its governance, clarify responsibilities and add new safeguards "in the coming weeks".
• LBTC liquidity: whether exchanges and traders return to Liquid now that backing is restored.

This article is for information only and is not financial advice.

#Bitcoin #Liquid Network #LBTC #Blockstream #Hack

This article is general information, not financial advice.