Format

ZPAQ Archive Format

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Summary

Name: ZPAQ Archive Format
Identifiers: PUID: fmt/1097
Format type: Aggregate
Description: ZPAQ is an open source command line file archiver developed by Matt Mahoney.
File extensions: zpaq
Submitted by: Digital Preservation Department / The National Archives

Internal signatures

ZPAQ Archive Format variant 1

Description: BOF: 7kSt{9}zpQ(0x01|0x02) - https://github.com/zpaq/zpaq/blob/master/zpaq.cpp
Provenance: See also: https://encode.ru/threads/456-zpaq-updates/page55

Byte sequences

Min Frag Length: Absolute from BOF
Offset: 0
Max offset: 0
Byte Sequence: 376B5374{9}7A5051(01|02)
Endianness: None

ZPAQ Archive Format variant 2

Description: BOF: zpQ(0x01|0x02) - https://github.com/zpaq/zpaq/blob/master/zpaq.cpp
Provenance: See also: https://encode.ru/threads/456-zpaq-updates/page55

Byte sequences

Min Frag Length: Absolute from BOF
Offset: 0
Max offset: 0
Byte Sequence: 7A5051(01|02)
Endianness: None

Changelog

V92

Release date

20 September 2017
- Added format
  
  ZPAQ Archive Format: Full entry added.
- Added signature
  
  ZPAQ Archive Format: Signature developed through PRONOM Research.