A dot in column x, counting from left, and row y, counting from the top, means that key number x has signed key number y. A red dot means a signature of level 0 or 1, a blue dot level 2 and a green level 3. Signatures which are not on the primary User ID are represented by a darker dot.

This image is not scaled. Each of the 1000 rows and each of the 1000 columns represents a single of the 1000 OpenPGP keys.

Wherever you hold your mouse pointer, you might see in the status bar the MSD and (spam protected) name of the key that has made the signature you are pointing at. Or you might not. It depends on your browser. This web page has a client side image map with key information masking as URLs. It works for me in Mozilla based browsers but your mileage may vary. No ECMAScript was armed during the production of this web page.

Too see the signed key instead of signing key, click here.

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