TL;DR:
- Starknet launched STRK20, a zero-knowledge privateness framework for balances and transfers of any ERC20 asset.
- The framework consists of viewing keys that enable selective disclosure of exercise in response to authorized necessities, with out exposing all transactions to most people.
- strkBTC was the primary use case for STRK20, bringing shielded balances and personal transfers to bitcoin exercise on Starknet.
Starknet launched a brand new privateness framework based mostly on zero-knowledge expertise designed to supply shielded balances and personal transfers of any ERC20 asset on its community. The system incorporates disclosure mechanisms aimed toward satisfying regulatory and compliance necessities.
The framework, known as STRK20, permits builders to incorporate non-public transaction flows while not having to construct an unbiased privateness infrastructure. It’s suitable with transfers, swaps, loans, staking, funds, and donations. Viewing keys, in flip, be sure that solely info related to legally binding necessities is disclosed, retaining the remainder of the exercise out of the general public eye.
Privateness shouldn’t imply new property, new wallets, or new functions.
What if it labored the place you already use crypto?
June 9, privateness involves [Starknet] pic.twitter.com/42JmCI93qc
— Starknet (Privateness Arc) (@Starknet) June 8, 2026
The Starknet staff clarified that STRK20 will not be a mixer. Not like conventional mixing, which diverts property to a separate vacation spot to obscure transaction historical past, STRK20 integrates shielding straight into the asset circulate. Privateness operates as a local mode of exercise, not as a specialised detour.
STRK20 in Motion: Personal Bitcoin on Starknet
“That is sensible privateness in probably the most real sense,” stated Damian Chen, VP of Progress on the Starknet Basis. In line with Chen, the framework permits customers, builders, and establishments to keep up their confidentiality from the general public whereas preserving compliance-ready disclosure paths each time the legislation requires it.

The launch of strkBTC is the primary main use case for STRK20, bringing shielded balances and personal transfers to bitcoin exercise inside the community. Reasonably than treating privateness as a separate vacation spot, strkBTC integrates shielding as a part of the asset expertise, permitting bitcoin to maneuver between private and non-private modes throughout Starknet-compatible wallets and functions.
Eli Ben-Sasson, CEO of StarkWare, argued that ZKP-driven privateness options like STRK20 will result in extra exact regulatory actions over time. He contended that present investigations into privateness infrastructure can have an effect on wallets and their volumes, and that advances in ZK expertise may enable future investigations to focus on particular info with much less collateral impression.

