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Description One of Donald Knuth's reward checks. Note that the machine-readable numbers at the bottom of the check have been randomly swapped or modified, so that no personal information about Don Knuth's personal bank account is leaked through this image.
Date Signed 8 March 1999, first uploaded on 29 November 2005 to en-wp as en:File:Knuth-check.png, then processed by Simetrical on 1 February 2006.
Source The check itself was scanned by Schutz as en:File:Knuth-check.png. The logos and design on the check have been pixelized by Simetrical. This image was transfered from en-wp by AFBorchert.
Author Signature by Donald Knuth


Public domain
This logo image consists only of simple geometric shapes or text. It does not meet the threshold of originality needed for copyright protection, and is therefore in the public domain. Although it is free of copyright restrictions, this image may still be subject to other restrictions. See WP:PD § Fonts and typefaces or Template talk:PD-textlogo for more information.
Public domain
This signature is believed to be ineligible for copyright and therefore in the public domain because it falls below the required level of originality for copyright protection both in the United States and in the source country (if different). In this case, the source country (e.g. the country of nationality of the signatory) is believed to be United States.
Note that this tag cannot be used on all signatures, as not all signatures are copyright-free.
See Commons:When to use the PD-signature tag for an explanation of when the tag may be used.

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current14:38, 5 April 2009Thumbnail for version as of 14:38, 5 April 2009900 × 408 (272 KB)AFBorchert{{Information |Description=One of Donald Knuth's reward checks. Note that the machine-readable numbers at the bottom of the check have been randomly swapped or modified, so that no personal information about

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