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![0xcarbon_ Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1769661601588592640.png) carbon ⦿Lockedin❖ [@0xcarbon_](/creator/twitter/0xcarbon_) on x 1262 followers
Created: 2025-07-22 08:54:20 UTC

Bitcoin is the most secure chain in existence but building anything beyond basic transfers? Clunky, limited, and Slow.

@citrea_xyz changes the with a ZK rollup that brings scalability, programmability, and composability to Bitcoin.

₿ Citrea uses:
➢ ZK proofs to scale off-chain
➢ BitVM to anchor on-chain
➢ A two-way bridge to keep BTC native
➢ EVM compatibility so devs can port apps easily

And the best part?
The “Unfreeze ₿apps” testnet campaign is LIVE.

@citrea_xyz is inviting devs, explorers, and builders to try it out by testing the bridge, build on Bitcoin, and be part of the earliest wave.

Why you should care:
➢ Native BTC in DeFi, NFTs, & GameFi
➢ Boost miner revenue through L2 activity
➢ Finally make use of Bitcoin blockspace

Backed by Founders Fund, Maven11, Balaji, Erik Voorhees & more. @citrea_xyz has $14M raised and momentum behind it.

Testnet is open.
Bridge is live.
Docs are public.
Now’s your chance to build where no one has built before.
Link 🔗

I’ll be covering @citrea_xyz in my later post:
➢ How it works under the hood
➢ What you can build
➢ Insights from the testnet
➢ Dev resources & community updates

![](https://pbs.twimg.com/media/GwctDVZWUAAe2F3.jpg)

XXX engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1947580962956579286/c:line.svg)

**Related Topics**
[devs](/topic/devs)
[onchain](/topic/onchain)
[scalability](/topic/scalability)
[zk](/topic/zk)
[bitcoin](/topic/bitcoin)
[coins layer 1](/topic/coins-layer-1)
[coins bitcoin ecosystem](/topic/coins-bitcoin-ecosystem)
[coins pow](/topic/coins-pow)

[Post Link](https://x.com/0xcarbon_/status/1947580962956579286)