ERC-1400 doesn't exist

[Pandapip1]

This proposal was never merged as an actual EIP. See https://eips.ethereum.org/EIPS/eip-1400 (or the lack thereof).

I recommend not depending on the behavior of this project, as it is NOT standardized.

If you are technically inclined, feel free to reach out to me, and I'd be happy to walk you through the process of creating and moving an EIP to Final.

[shah-aman]

what should be the standard that should be used to issue tokens for security tokens currently whats the most popular standard

[Pandapip1]

what should be the standard that should be used to issue tokens for security tokens currently whats the most popular standard

ERC-20, ERC-721, or ERC-1155