Starknet

**DeFa Private Mainnet** has launched on Starknet, bringing confidential financial infrastructure to the network. The platform offers: - **Confidential stablecoin liquidity** for private transactions - **Verified receivables** with privacy protections - **Trusted cashflow infrastructure** for businesses All features are powered by **STRK20**, Starknet's privacy framework that allows users to shield ERC-20 assets with one click. The system maintains confidentiality by default while allowing selective disclosure when legally required. DeFa builds on Starknet's recent privacy rollout, which includes private transfers, swaps, and shielded balances. The network's proving technology enables complex private transactions at a fixed cost of 4 STRK, making privacy practical for everyday use. This marks a significant expansion of private DeFi capabilities on Starknet, moving beyond basic transfers to institutional-grade financial infrastructure.

**Shield Rush is now live** on Starknet, offering users a new way to earn rewards through daily activities. **What is Shield Rush?** - A campaign where participants complete daily activities using Shielding technology - Earn a share of rewards by participating - Powered by StarkWare Ltd **Getting Started** Visit the [Shield Rush website](https://strk20.starknet.io/shield-rush) to begin participating in the campaign. The campaign is open to anyone interested in engaging with Starknet's Shielding features while earning rewards.

The **strkBTC bridge** now operates through a Federation of five independent institutions managing Bitcoin bridging infrastructure. **Federation Members:** - Twinstake - NEAR Protocol/Intents - Luganodes - UTXO Management - Xverse Each member operates infrastructure supporting the **minting, burning, and bridging** of BTC and strkBTC tokens. The Federation provides a defined operational trust model for moving Bitcoin into and out of the Starknet ecosystem. This multi-institutional approach distributes responsibility across independent operators rather than relying on a single entity.

**STRK20** introduces privacy features for ERC-20 tokens on Starknet while maintaining regulatory compliance through encrypted viewing keys. **Key Features:** - Private balances, transfers, and swaps for any ERC-20 on Starknet - Fixed cost of 4 $STRK per transaction, regardless of size - Single shared privacy pool that strengthens as more users join - Encrypted viewing keys allow authorized auditors to access specific information on legitimate requests **How It Works:** Users can shield ERC-20 tokens into private balances, conduct private transactions, then unshield with one click—all within the same wallet and liquidity pools. The framework leverages Starknet's provable computation capabilities to verify private transactions without exposing details. As the privacy pool grows with more users and assets, individual transactions become harder to isolate. **Ecosystem Expansion:** STRK20 is rolling out across Starknet with integrations for [avnu](https://avnu.fi) and [Ekubo](https://ekubo.org), plus an open-source SDK. The [Proof of Privacy incubator](https://starknet.io) supports teams building private applications for payments, trading, identity, and DeFi. *Privacy by default, accountability when required.*

**Decentralised** examined why no privacy solution has succeeded in crypto markets until now. Every previous attempt collapsed in one of three predictable ways: - **Walled gardens**: Assets locked into isolated private networks - **Bolted-on privacy**: Retrofitted solutions that fragmented liquidity across markets - **Compliance conflicts**: Systems that worked technically but couldn't meet regulatory requirements The core problem? A forced choice between privacy and compliance—institutions could have one or the other, never both in a usable form.

**Private swaps are now live on Starknet**, marking a significant milestone for privacy-focused DeFi on the network. **Key features:** - Private transactions enabled through Paymaster integration - Powered by AVNU protocol - Available on Starknet Mainnet This launch represents Starknet's entry into privacy-preserving DeFi, allowing users to execute token swaps without publicly exposing transaction details on-chain. The announcement includes a guide for users to begin swapping privately on the platform.

**Privacy doesn't have to mean breaking compliance rules.** Most privacy solutions face a problem: they either can't respond to legal requests without exposing everyone, or they isolate users in fragmented ecosystems. **STRK20 takes a different approach:** - Viewing keys are encrypted by an independent auditor - Legal requests can be answered with scoped access per user - Other users in the pool remain protected - No need to freeze funds or delist assets This design keeps privacy functional while meeting regulatory demands—connecting users to existing DeFi without the compliance risks that have plagued other privacy tools.

At Bitcoin 2026, a new privacy solution for Bitcoin was demonstrated on stage. **strkBTC** enables Bitcoin holders to conduct private transactions on Starknet through a privacy pool system. **How it works:** - Users bridge their BTC into the Starknet network - Balances and transfers become shielded within the privacy pool - Bitcoin remains fully redeemable back to native BTC at any time - External observers only see bridge deposits and withdrawals - Internal transaction activity stays private The solution gives Bitcoin users optional privacy without sacrificing the ability to return to native BTC. Users maintain control over when to enter and exit the privacy layer.

Starknet mainnet experienced a brief ~10 minute downtime starting at 8:10 AM UTC on April 20 for the v0.14.2 protocol upgrade. **Key Changes:** - **In-protocol proof verification** - Starknet can now verify proofs natively at the protocol level, eliminating expensive application-layer workarounds - **Native privacy unlocked** - Enables STRK20 and strkBTC tokens with built-in privacy features - **zkThreads foundation** - Lays groundwork for infinite scaling through parallel execution - **Decentralization building blocks** - Adds infrastructure for future decentralized validation The upgrade passed community vote on April 16 after STRK stakers and delegators approved the changes. Additional improvements include revised storage economics and StarkGate token contract upgrades. This represents a fundamental shift in how Starknet handles proof verification, moving critical functionality from the application layer into the core protocol.

**strkBTC is set to launch by end of April/early May**, bringing a new Bitcoin wrapper to Starknet that combines hard money principles with privacy and DeFi productivity. **Key features:** - Privacy-enabled Bitcoin transactions - Built on STRK20s privacy technology - Compliance integrated from day one - Full DeFi composability on Starknet **What this means:** Bitcoin holders will be able to do more than just HODL - they can participate in Starknet's DeFi ecosystem while maintaining privacy. The asset aims to provide Bitcoiners with confidential balances and private transfers. **Get involved:** Interested users can contact the team at [strk20.starknet.io](https://strk20.starknet.io/) to participate in the upcoming launch. Bitcoin can already be bridged to Starknet in preparation. This launch is part of Starknet's broader privacy initiative, which includes STRK20s - a privacy layer for all ERC-20 tokens with built-in compliance.