Systems, methods, and computer-readable storage media for maintaining user anonymity in content statistics. A system can first receive a media content request from a client device. The media content request can include a user account identifier and a content identifier. The content identifier can be different and separate from the user account identifier and a device identifier associated with the client device, and the content identifier can identify content presented at the client device. Next, the system can store the user account identifier and the content identifier in separate locations without attributing the content identifier to the user account identifier. In response to the media content request, the system can transmit a media content item to the client device based on the user account identifier. The system can also report the content presented at the client device with the content identifier and without the user account identifier.

A user of a blockchain network may obtain credentials for the user from an issuer, the credentials based on one or more attributes of the user, wherein the issuer is selected from one or more authorized issuers, and wherein the credentials include a signature on the one or more attributes and a secret key; generate an operation composed of a payload and a second signature; compute a commitment to a public key of the issuer; prove, using a one-out-of-many proof, that the commitment is a valid commitment to a public key of one of the authorized issuers; prove, using a zero-knowledge proof, proof of knowledge of the signature and the credentials under the public key of the issuer; and prove, using a proof of knowledge, of values of the signed secret key and attributes.

A computing system retrieves a value of a device identifier of itself and generates a device claim asserting the value of the device identifier. The device claim is then associated with an identifier of a user of the computing system. The computing system then generates and attach proof code to the device claim to turn the device claim into a verifiable device credential (VDC). The proof code proves that the VDC is issued by the user of the computing system. The VDC is later presented to a relying entity as part of an identity protection system to further protect the user's identity.

An integrated collaboration platform with various communication and collaboration tools includes an analytic engine to perform communication and mood analysis of conversations among other analyses. The platform enables a method for contextual communication, in an embodiment. The method for contextual communication involves receiving an indication of sending a message from a sender to a recipient, understanding the topic of the message, analyzing various parameters associated with the sender and the recipient, and suggesting a list of messages, information, alternate communication channels, desired moods for the receiver at the time of receiving the message, and timing of delivery of the message for a desired response from the recipient.

A method for collecting data from a group of entitled members. The method may include receiving, by a collection unit, a message and a message signature; validating, by the collection unit, whether the message was received from any of the entitled members of the group, without identifying the entitled member that sent the message; wherein the validating comprises applying a second plurality of mathematical operations on a first group of secrets, a second group of secrets, and a first part of the message signature; and rejecting, by the collection unit, the message when validating that the message was not received from any entitled member of the group.

Method and System for enhanced privacy in privacy-preserving identity solutions. The technology provides for a redirect of a request to generate a proof of an attribute from a service provider to a separator. The separator removes source identification from the attribute-proof request and redirects the attribute-proof request, free of original source identification, to a credential issuer which issues the credential. A security device of the user generates a presentation token from the privacy-preserving credential and presents the presentation token to the service provider as proof of the attribute. Other systems and methods are disclosed.

Techniques for patterned and correlated electrical activity include receiving user data from a device of a user and anonymized data from other devices of other users, the user data and the anonymized data being received based on the device and the other devices having been co-located. The user data is compared to the anonymized data according to an activity. It is determined that an event occurred based on one or more deviations of the user data from the anonymized data according to the activity, the event being related to a health of the user.

Provided herein are database structures, systems, and methods for an anonymous, information exchange platform. The information exchange platform described herein may comprise blockchain structures, decentralized networks, peer-to-peer technology, cryptographic techniques, and/or a combination thereof. Past and present actors associated with a topic of information (e.g., a product) may flexibly exchange information on the information exchange platform by implementing question and answer protocols.

A method for automatically converting electronic data is disclosed. The method comprises scanning a source data table containing data fields; determining a feature for each of the data fields of the source data table; comparing the feature for each of the data fields with a feature rule for identifying user-identity-containing data fields in the source data table; identifying a first data field of the source data table as containing user identity when the feature of the first data field matches the feature rule; identifying a second data field of the source data table as containing no user identity when the feature of the second data field fails to match the feature rule; converting the source data table by replacing data items of the first data field in the source data table identified as containing user identity with corresponding third-party user accounts, and keeping the second data field in the source data table identified as not containing user identity unaltered; and storing the converted data table in a storage medium.

The invention is a data management method for an anonymous data sharing system, comprising the steps of receiving a data supply from a data source (10), the data supply comprising an anonymous data source identifier, an entity identifier encrypted with the private encryption key of the data source (10), and data associated with the entity. The method further comprises mapping the encrypted entity identifier to a common anonymous entity identifier by applying a classifier key associated with the data source identifier in such a manner that for every entity identifier the following applies: by encrypting said entity identifier with the private encryption key of any data source (10) and by mapping it using the classifier key associated with the identifier of the data source, the same common anonymous entity identifier is obtained, wherein the data associated with the entity are stored in a database (12) in a manner that said data are assigned to the common anonymous identifier. The invention also relates to a registration method, to a data manager, and to an anonymous data sharing system comprising same.