[JimDabell]

KSUIDs are fairly popular and missing from your list:

https://github.com/segmentio/ksuid

[8n4vidtmkvmk]

what's the resolution on those? 32 bits, 100 years.. that seconds right? doesn't sound excellent for time ordering. 100 years also seems a little short but at least I'll be dead

[sekh60]

Don't look at it as being your problem in 100 years, but as helping employment in 100 years and helping the economy ;)