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RFC 4122, "A Universally Unique IDentifier (UUID) URN Namespace", July 2005

Source of RFC: IETF - NON WORKING GROUP
Area Assignment: app

Errata ID: 1957
Status: Held for Document Update
Type: Technical

Reported By: Sergey Shandar
Date Reported: 2009-12-03
Held for Document Update by: Barry Leiba
Date Held: 2013-03-20

Section 4.1.3 says:

The version number is in the most significant 4 bits of the time
stamp (bits 4 through 7 of the time_hi_and_version field).

It should say:

The version number is in the most significant 4 bits of the time
stamp (bits 12 through 15 of the time_hi_and_version field).

Notes:

time_hi_and_version is defined as 16 bit field.

--- VERIFIER NOTES ---
This change does make the text in Section 4.1.3 consistent with the sixth
bullet in Section 4.2.2. But the issue goes well beyond that: there is a real
problem with the bit numbering throughout the RFC. Please see erratum
3546 for more details.

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