What does HackerNews think of ksuid?

K-Sortable Globally Unique IDs

Language: Go

#42 in Go
#29 in Go
UUID v4 isn't large enough to prevent collisions, that is why segment.io created https://github.com/segmentio/ksuid which is 160bit vs the 128bit of a UUIDv4.
Ksuid may be what you want. Pretty much time sortable uuid.

Go implementation: https://github.com/segmentio/ksuid

KSUIDs are fairly popular and missing from your list:

https://github.com/segmentio/ksuid

There are KSUIDs that aim to satisfy this

A go ref impl: https://github.com/segmentio/ksuid

We use K-Sortable Globally Unique IDs: https://github.com/segmentio/ksuid

Some differences:

128 bit strongly generated payload (instead of 80 bits for ULIDs).

Only 32 bit time precision but that's wall clock time anyway.

Base62 encoded.