Citrea BTC project extends Bitcoin’s utility by introducing a zk-rollup that secures execution and data availability directly on the Bitcoin blockchain. Its proof system guarantees every state transition is valid, accessible, and immutable, making it the first true execution layer rooted in Bitcoin.
On July 17th, 2025, the project announced the launch of its Testnet campaign, allowing users to “unfreeze Bapps” ahead of the mainnet launch. Hence, we have prepared a detailed guide on how to join the event and qualify for the potential Citrea airdrop.
To participate in the Citrea zk rollup Bitcoin Testnet, go to the page and connect your wallet.

Then, try to catch a Citrea testnet invite code in the Discord or X (Twitter) of the project. This way, you’ll access the testnet campaign. If you don’t want to wait, share your excitement for ₿apps and Citrea on X and tag @citrea_xyz & #Bapps in your post and wait for the reply.

Then, head to the Citrea faucet and receive test $cBTC tokens, which you will use later on.

Once received, go to the Crest website, connect your wallet, and receive $50 test tokens. Then, buy and sell some $BTC.

Continue by heading to the Nectra website, connecting your wallet, moving the sliders (so that the Liquidation price is green), and clicking “Open Position”.

Afterward, go to the Satsuma exchange, connect your wallet, and swap $cBTC for $USDC and $SUMA tokens.

Go to the Signals website and connect your wallet. After that, you will receive 100 free coins that you can use to place bets. Set the range and predict the price of $BTC to complete the task. Collect rewards some time after opening your position.
Finally, go to the Atomic exchange and make swaps using the Citrea bridge.

đź’ˇ Bonus tip: Complete all the available social tasks on Layer3 to receive an additional boost to your Citrea coin airdrop allocation.
Good Luck! 🍀
Go to the Testnet page and connect your wallet;
Get a testnet invite code from Discord/X, or post about ₿apps on X;
Claim test $cBTC from the Citrea faucet;
Head to the Crest and trade $BTC;
Go to the Nectra website and open a position;
Swap $cBTC for $USDC and $SUMA on Satsuma exchange;
Connect your wallet to Signals and try to predict the $BTC price;
Use Atomic exchange to make swaps via the Citrea bridge;
Complete social tasks on Layer3 for an extra airdrop allocation;
Follow the project’s news concerning the campaign on social media;
Receive your tokens.