Terminology

blob

Immutable sequence of 0 or more bytes.

blobref

Reference to a blob in the <digalg>-<digest> format where:

• <digalg> is a cryptographic hash function
• <digest> is that function's digest, in hex

Examples of valid blobrefs:

sha1-f1d2d2f924e986ac86fdf7b36c94bcdf32beec15
md5-d3b07384d113edec49eaa6238ad5ff00
sha256-b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c