warc-block-digest · shipping · also WARC-Block-Digest

WARC block digest

A WARC block digest records the hash algorithm and computed digest of a record's entire content block.

A block digest covers only the stored content block, not the enclosing WARC header. For an unsegmented HTTP response, that block includes the stored HTTP headers and body; a revisit can omit the duplicate body. [1]

In warcio 1.8.2, revisit records bypass both block and payload digest checks; command success does not certify either comparison. [2]

Relations

related
WARC payload digest, WARC revisit record, Checksum

Citations

  1. IIPC WARC 1.1: WARC block digest field (accessed 2026-11-03)
  2. warcio 1.8.2: digest verification scope (accessed 2026-11-03)

Further reading

  1. Hesela: WARC capture dependencies and verification controls (accessed 2026-11-03)
Sources & caveats
  • Standard field semantics and version-pinned source inspection; no new experiment. [1] [2]

JSON: /data/terms/warc-block-digest.json

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Cite this page
Hesela team. WARC block digest. Hesela. 2026-11-03. https://hesela.dev/terms/warc-block-digest/