Technologies are shown for secure management of personal information data involving
storing personal information data in a personal information data block and committing the …

(57) ABSTRACT A system and method for facilitating a blockchain-based state of data
management that includes: receiving the state of data, the state including a data identifier …

Methods, systems, storage media for authentication are described. On the methods includes
receiving, at a smart contract on a distributed ledger, a signed authentication challenge. The …

Technologies are shown for tracking transfer of an item on an item tracking data blockchain,
where transfers of the item and the holder of the item are recorded in item tracking data …

US10097344B2 - Method and system for partitioned blockchains and enhanced privacy for
permissioned blockchains - Google Patents US10097344B2 - Method and system for …

2018-08-31 Assigned to EBAY, INC. reassignment EBAY, INC. ASSIGNMENT OF
ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RUBINSON, ETHAN …

A portable token device is described, the token device useable to request transactions
performed over an inter change system. The token device authenticates a user through the …

Provided is a process including: obtaining criteria to select plain-text values in a lower-trust
database; selecting, based on the criteria, a first plain-text value; in response, deter mining a …

2018-02-14 Assigned to MICROSOFT TECHNOLOGY LICENSING, LLC reassignment
MICROSOFT TECHNOLOGY LICENSING, LLC ASSIGNMENT OF ASSIGNORS INTEREST …

ABSTRACT A system includes circuitry for performing hybrid block chain rewrites by trusted
parties. The hybrid blockchain may include blocks with multiple parts. In some cases, the …