# Sin7Y Tech Review (27): Combined Selector

By [Sin7Y](https://paragraph.com/@sin7y) · 2022-06-23

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When designing the zkvm circuit, because of many custom gates determined, there are a lot of binary selectors are introduced. Check out our analysis!

[_Details_](https://hackmd.io/@sin7y/H10EO2Z5q) _of this review can be found in Sin7Y’s HackMD channel._

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Founded in 2021 and powered by top-notch blockchain developers, Sin7Y is a project incubator and blockchain technology research team that explores the most important and cutting-edge technologies, including EVM, Layer2, cross-chain, privacy computing, autonomous payment solutions, etc.

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*Originally published on [Sin7Y](https://paragraph.com/@sin7y/sin7y-tech-review-27-combined-selector)*