C.I.R.C.B. respects the intellectual property of authors and editors, and the material property of libraries, archives and individuals. It identifies the descendants of the originators of all documents, and obtains written permission from them to publish those documents, or alternatively establishes that those documents are in the public domain. C.I.R.C.B. stamps each document with a statement of all rights held in that document, or asserts that the IPR is in the public domain. C.I.R.C.B. does not knowingly infringe any copyright, and it provides an email address to which any persons who consider they have a claim on a document may present that claim.