Since you asked for corrections, you misspelt 'copyright'.

Since you brought it up, the dictionary does not contain Misspelt as a
variant of misspelled.

http://dictionary.reference.com/browse/misspelt

O.K., I stand corrected, what's the world coming to.

Actually, "misspelt" may be obsolete, but still appears in some
dictionaries.

Dictionary.com shows it, as follows:

mis·spell /m?s'sp?l/ Pronunciation Key - Show Spelled
Pronunciation[mis-spel] Pronunciation Key - Show IPA Pronunciation
-verb (used with object), verb (used without object), -spelled
or -spelt, -spell·ing. to spell incorrectly.

[Origin: 1645-55; mis-1 + spell1]
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

I don't have a cross reference to the OED, but they would presumably have
some discussion as well.

Peter