The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2015
Filed:
May. 28, 2014
International Business Machines Corporation, Armonk, NY (US);
John G. Rooney, Rueschlikon, CH;
Christopher J. Giblin, Rueschlikon, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Auditable data distribution from a server to clients is achieved as follows. The server delivers chunks of a data file, and identifiers of the chunks, to the clients. For each chunk of the data file received by the clients, a digest is generated by the client that received the chunk, using at least a part of the chunk and further data of the client that received the chunk. The further data is known to the server. The client that received this chunk sends the digest to the server, which receives the digest. The server determines an identity of the clink that received the chunk in question, by comparing the digest to the chunks that the server has sent and to the further data known to the server. The server stores the identity of the client that received the chunk.