2099 WARC 1.1 ISO 28500:2017, Web ARChive Aggregate The WARC (Web ARChive) file format offers a convention for concatenating multiple resource records (data objects), each consisting of a set of simple text headers and an arbitrary data block into one long file. The WARC format is an extension of the ARC file format (ARC) that has traditionally been used to store "web crawls" as sequences of content blocks harvested from the World Wide Web (…) Besides the primary content recorded in ARCs, the extended WARC format accommodates related secondary content, such as assigned metadata, abbreviated duplicate detection events, later-date transformations, and segmentation of large resources”. WARC format has been written by the members of the IIPC (http://www.netpreserve.org/) grouped within the ISO/TC46/SC4/WG12. 232 Landesarchiv Nordrhein-Westfalen / Landesarchiv Nordrhein-Westfalen 18 Jan 2020 18 Jan 2020 application/warc MIME fmt/1281 PUID warc File extension 1661 WARC 1.1 Matching WARC header. Header: WARC/1.1 CRLF. Then either 'WARC-Record-ID', 'WARC-Date', 'WARC-Type', 'Content-Length' all madatory fields that can appear in any order. 1 Absolute from BOF 0 4096 574152432F312E310D0A{0-512}(574152432D5265636F72642D4944|436F6E74656E742D4C656E677468|574152432D54797065|574152432D44617465) Has priority over 639 Hypertext Markup Language Has priority over 640 Hypertext Markup Language Has priority over 641 Hypertext Markup Language Has priority over 642 Hypertext Markup Language Has priority over 643 Extensible Hypertext Markup Language Has priority over 644 Extensible Hypertext Markup Language Has priority over 645 Hypertext Markup Language Has priority over 1029 WARC Has priority over 1258 Hypertext Markup Language