Is 1INCH on Ethereum?

Could you elaborate on the current status of 1INCH and its association with Ethereum? Specifically, is the 1INCH token built natively on the Ethereum blockchain? I'm interested in understanding whether it utilizes Ethereum's smart contract capabilities and is subject to the same network effects and security measures as other ERC-20 tokens. Additionally, I'm curious about any interoperability initiatives or bridge solutions that may exist between 1INCH and other blockchain networks. Clarifying these points would greatly assist in my assessment of 1INCH's position within the cryptocurrency landscape.