http://logicerror.com/myWeavingTheWeb identifies Aaron Swartz's copy of Weaving the Web. This copy of the book can be identified by the fact that it has this URI written in the front cover.
Someone complained that this fact was easily forgeable and someone could pass off their book as mine. I'm not too worried about this, but since I like crypto I'll add a second requirement. Underneath this URI is a phrase inside parentheses. The SHA1 hash of this phrase (sans parentheses) is c9a0b894c842a228ad8a7f84482eff97b8772bbf.
Part of LogicError. Powered by Blogspace, an Aaron Swartz project. Email the webmaster with problems.