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    <title>topic FileMetadata checksum in Dropbox API Support &amp; Feedback</title>
    <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157983#M5340</link>
    <description>&lt;P&gt;Is there something better than file size to use as a checksum?&lt;BR /&gt;&lt;BR /&gt;Maybe Sha1 or MD5? I didn't see one on the FileMetadata class. It appears "Rev" changes even when the contents haven't changed (ie. on file rename)&lt;/P&gt;</description>
    <pubDate>Wed, 29 May 2019 09:35:05 GMT</pubDate>
    <dc:creator>Joel T.9</dc:creator>
    <dc:date>2019-05-29T09:35:05Z</dc:date>
    <item>
      <title>FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157983#M5340</link>
      <description>&lt;P&gt;Is there something better than file size to use as a checksum?&lt;BR /&gt;&lt;BR /&gt;Maybe Sha1 or MD5? I didn't see one on the FileMetadata class. It appears "Rev" changes even when the contents haven't changed (ie. on file rename)&lt;/P&gt;</description>
      <pubDate>Wed, 29 May 2019 09:35:05 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157983#M5340</guid>
      <dc:creator>Joel T.9</dc:creator>
      <dc:date>2019-05-29T09:35:05Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157984#M5341</link>
      <description>&lt;P&gt;The&amp;nbsp;Dropbox API doesn't offer any sort of file hash or checksum unfortunately,&amp;nbsp;but I'll be sure to pass this along as a feature request.&lt;/P&gt;</description>
      <pubDate>Wed, 09 Mar 2016 10:29:19 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157984#M5341</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2016-03-09T10:29:19Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157985#M5342</link>
      <description>&lt;P&gt;That would be great, "file size" is the only item that appears to be correlated with the actual content, please correct me if I'm wrong, even date changes simply on file name change.&lt;/P&gt;</description>
      <pubDate>Thu, 10 Mar 2016 00:10:17 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157985#M5342</guid>
      <dc:creator>Joel T.9</dc:creator>
      <dc:date>2016-03-10T00:10:17Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157986#M5343</link>
      <description>&lt;P&gt;Yes, even the date would change. The file size will always indicate the size of the file contents, though we don't&amp;nbsp;recommend using that as a way to identify the actual contents of course.&lt;/P&gt;</description>
      <pubDate>Thu, 10 Mar 2016 02:07:56 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157986#M5343</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2016-03-10T02:07:56Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157987#M5344</link>
      <description>&lt;P&gt;What do you recommend for identifying changes to the actual file contents?&lt;/P&gt;</description>
      <pubDate>Mon, 02 May 2016 22:48:54 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157987#M5344</guid>
      <dc:creator>Brian S.53</dc:creator>
      <dc:date>2016-05-02T22:48:54Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157988#M5345</link>
      <description>&lt;P&gt;For the time being, I'm fetching the file and calculating the MD5 myself. I'm hoping Dropbox will allow access to the checksum&amp;nbsp;they are already calculating, and I'll just replace with that... Hopefully they will give us access (and it's not a different algorithm).&lt;/P&gt;</description>
      <pubDate>Mon, 02 May 2016 23:48:55 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157988#M5345</guid>
      <dc:creator>Joel T.9</dc:creator>
      <dc:date>2016-05-02T23:48:55Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157989#M5346</link>
      <description>&lt;P&gt;So there's no way around needing to download the entire file just to see if it's the same as the local copy?&lt;/P&gt;</description>
      <pubDate>Mon, 02 May 2016 23:52:26 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157989#M5346</guid>
      <dc:creator>Brian S.53</dc:creator>
      <dc:date>2016-05-02T23:52:26Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157990#M5347</link>
      <description>&lt;P&gt;Hi Brian, I just replied on the &lt;A href="https://www.dropboxforum.com/hc/en-us/community/posts/206647826-How-do-you-track-when-only-a-file-s-contents-have-changed-API-v2-" target="_blank" rel="nofollow noreferrer"&gt;new thread you started&lt;/A&gt;, but in short, yes, that's correct, the&amp;nbsp;Dropbox API doesn't currently offer file hashes, so you'd need to download it to check the contents.&lt;/P&gt;</description>
      <pubDate>Tue, 03 May 2016 01:14:48 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157990#M5347</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2016-05-03T01:14:48Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157991#M5348</link>
      <description>&lt;P&gt;Any news on this? Can we hope to see md5sum among the API methods some time soon?&lt;/P&gt;</description>
      <pubDate>Sat, 23 Jul 2016 20:34:26 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157991#M5348</guid>
      <dc:creator>Olaf B.2</dc:creator>
      <dc:date>2016-07-23T20:34:26Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157992#M5349</link>
      <description>&lt;P&gt;Apologies, no news on this. I'm not aware of plans for this.&lt;/P&gt;</description>
      <pubDate>Sun, 24 Jul 2016 23:53:42 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157992#M5349</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2016-07-24T23:53:42Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157993#M5350</link>
      <description>&lt;P&gt;I agree, having the ability within the web UI interface to see the file checksums (MD5 and SHA1, at least), would be greatly beneficial in order to help in determining whether files that have been uploaded/downloaded are complete and accurate. An additional tie in to this would be ability to add alerts if a checksum changed - maybe file version history would offer this?&lt;/P&gt;</description>
      <pubDate>Tue, 09 Aug 2016 23:54:08 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/157993#M5350</guid>
      <dc:creator>Matt A.6</dc:creator>
      <dc:date>2016-08-09T23:54:08Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/212679#M10788</link>
      <description>The Dropbox API now offers a hash of file data that you can use to verify a file's contents. You can find it in FileMetadata.content_hash. It isn't a single MD5 or SHA1, but rather a combination of SHA256 hashes of the pieces of the file. You can find more information here:&lt;BR /&gt;&lt;BR /&gt;&lt;A href="https://www.dropbox.com/developers/reference/content-hash" target="_blank"&gt;https://www.dropbox.com/developers/reference/content-hash&lt;/A&gt;</description>
      <pubDate>Tue, 21 Mar 2017 18:40:33 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/212679#M10788</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2017-03-21T18:40:33Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/213488#M10850</link>
      <description>&lt;P&gt;That is good news, is the content_hash&amp;nbsp;available on the Java API?&lt;/P&gt;</description>
      <pubDate>Mon, 27 Mar 2017 17:22:15 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/213488#M10850</guid>
      <dc:creator>Team F.1</dc:creator>
      <dc:date>2017-03-27T17:22:15Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/213495#M10852</link>
      <description>&lt;P&gt;Yes, in the &lt;A href="https://github.com/dropbox/dropbox-sdk-java" target="_self"&gt;official Dropbox API v2 Java SDK&lt;/A&gt;&amp;nbsp;it's available as &lt;A href="https://dropbox.github.io/dropbox-sdk-java/api-docs/v3.0.x/com/dropbox/core/v2/files/FileMetadata.html#contentHash" target="_self"&gt;FileMetadata.contentHash&lt;/A&gt;.&lt;/P&gt;</description>
      <pubDate>Mon, 27 Mar 2017 18:11:02 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/213495#M10852</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2017-03-27T18:11:02Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/215317#M11072</link>
      <description>&lt;P&gt;Hi!&lt;BR /&gt;Is there any reason why content_hash, which was introduced in version 3.0.0, has been removed in version 3.0.1?&lt;/P&gt;&lt;P&gt;ref. &lt;A href="https://mvnrepository.com/artifact/com.dropbox.core/dropbox-core-sdk" target="_blank"&gt;https://mvnrepository.com/artifact/com.dropbox.core/dropbox-core-sdk&lt;/A&gt;&lt;/P&gt;</description>
      <pubDate>Mon, 10 Apr 2017 09:41:38 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/215317#M11072</guid>
      <dc:creator>cro</dc:creator>
      <dc:date>2017-04-10T09:41:38Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/215435#M11088</link>
      <description>Thanks for the report! I believe this is a known issue with the Java SDK release right now. The team is looking into it, and I'll follow up here once I have an update for you.</description>
      <pubDate>Mon, 10 Apr 2017 18:35:38 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/215435#M11088</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2017-04-10T18:35:38Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/215850#M11139</link>
      <description>This should be fixed in the latest release of the SDK, v3.0.2. Please update and let me know if you're still seeing any issues.</description>
      <pubDate>Wed, 12 Apr 2017 19:51:31 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/215850#M11139</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2017-04-12T19:51:31Z</dc:date>
    </item>
    <item>
      <title>Re: FileMetadata checksum</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/215864#M11140</link>
      <description>&lt;P&gt;I have now updated to version 3.0.2 and everything seems to work as expected. Thanks so much for your feedback.&lt;/P&gt;</description>
      <pubDate>Wed, 12 Apr 2017 21:46:01 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/FileMetadata-checksum/m-p/215864#M11140</guid>
      <dc:creator>cro</dc:creator>
      <dc:date>2017-04-12T21:46:01Z</dc:date>
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