Firebase Push IDs

[obsidianforensics]

Description Firebase's push IDs are the chronological, 20-character unique IDs. A push ID contains 120 bits of information. The first 48 bits are a timestamp, which both reduces the chance of collision and allows consecutively created push IDs to sort chronologically. The timestamp is followed by 72 bits of randomness

Examples

• "-JhLeOlGIEjaIOFHR0xd"
• "-JhQ76OEK_848CkIFhAq"
• "-JhQ7APk0UtyRTFO9-TS"

References

• https://firebase.googleblog.com/2015/02/the-2120-ways-to-ensure-unique_68.html
• https://gist.github.com/mikelehen/3596a30bd69384624c11