7.1 What is fixity?Example proceedures that may be used to verify fixity: Checksums like MD5 or SHA1, often used for digital images. XML SignaturesTransmission Fixity7.2 Persistance Fixity- not implemented / Not required
Per-segment results as used for time-based media- not implemented / not required
7.2 Transmission Fixity may be verified by including a Digest header (defined in [ RFC3230 ]) in POST- for example, in curl command:
-H "Digest:sha=a79ca8393d8866ce4899f523235a3b8b6812e76b" may be verified by including a Digest header (defined in [ RFC3230 ]) in PUT
for example, in curl command: -H "Digest:sha=a79ca8393d8866ce4899f523235a3b8b6812e76b" 7.3 Persistance Fixity- may retrieve the checksum of an LDP-NR by performing a
HEAD request on it with the Want-Digest header
- mechanism: curl command for HEAD with header:
-H "Want-Digest: md5,sha" will return, in the headers: Digest: sha=9f0f5b0c24303b003b5afaa0031e126cc6f7fa67,md5=0a85fd5f25c09a9f282b15e7758b3acd
- may retrieve the checksum of an LDP-NR by performing a
GET request on it with the Want-Digest header mechanism: curl command for GET with header: -H "Want-Digest: md5,sha" will return, in the headers: Digest: sha=9f0f5b0c24303b003b5afaa0031e126cc6f7fa67,md5=0a85fd5f25c09a9f282b15e7758b3acd
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