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Checksum Pack Introduction

Generate checksums/hashes of files and images in Coda docs

This Pack lest you generate checksums (hashes) of files and images that are hosted by Coda (i.e. uploaded to a Coda doc, or synced in via a sync table). Note that files that live elsewhere (e.g. images in an ImageURL column) are not supported.

You can use this to determine if two files are identical (if their hashes are identical, it’s exceedingly likely that they are also identical).

The Pack uses the SHA1 algorithm which is fast and detects even minute differences between files. Note that Packs (including this one) cannot read files > 4MB in size.

You can view the source code

here⁠

, and install the Pack from

here⁠

Examples

Examples

File

SHA1 Checksum

Matching Files

Notes

The-Wealth-of-Nations.pdf

02e5283074220931cbfc5d18e4840a01af294b1c

Normal execution of the formula

Capital-Volume-I.pdf

4.3 MB file is too large for Pack to access

champagne-kitty.jpg

9f1d08ea45ebbdb5ca36f2f4180e3d663535574a

wealthy-cat.jpg

Match found!

wealthy-cat.jpg

9f1d08ea45ebbdb5ca36f2f4180e3d663535574a

champagne-kitty.jpg

Match found!

There are no rows in this table

⁠

Want to print your doc?
This is not the way.

Try clicking the ⋯ next to your doc name or using a keyboard shortcut (

CtrlP

) instead.