CRAM
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Dan Tobias (Talk | contribs) (Created page with "{{FormatInfo |subcat=Scientific Data formats |extensions={{ext|cram}}, {{ext|crai}} }} '''CRAM''' is a binary format for aligned DNA sequencing. The .cram files are the CRAM d...") |
Latest revision as of 03:47, 4 August 2020
CRAM is a binary format for aligned DNA sequencing. The .cram files are the CRAM data, while .crai is an associated index file.
[edit] Identification
Files start with the four bytes spelling CRAM (hex 43 52 41 4d) followed by the major and minor version numbers as unsigned bytes, then a 20 byte file ID (name or SHA1 checksum).
