Abstract: A computing system that facilitates execution of protocol for requesting data from one or more data owners. The protocol may specify an execution graph for performing operations collect the requested data. The execution graph may be comprised of execution graph nodes specifying operations such as accessing a database, querying the database, and scrubbing the resulting data of sensitive information. An execution graph may be agreed upon and stored on a blockchain. Storing the execution graph on the blockchain ensures a validated consensus among parties, such as the data owners, for the operations defined within the execution graph. The protocol may include requests for data from multiple data owners. The data received from each data owner may be aggregated. Rules may require the aggregated data meet certain requirements before release such as removing sensitive information or a minimum number of data records to prevent exposure of private data.

Abstract: A system may certify that an image originated from a particular camera. A camera operator may register a camera by providing a public key and images captured using the camera and digitally signed with a corresponding private key. The system may train a machine learning model to identify image features resulting from physical characteristics of the camera. The system may subsequently receive a request to certify an image accompanied by the public key. The system may retrieve the model using the public key and determine a probability that the image originated from the camera. The system may compute a zero-knowledge proof that the image was certified so that the model itself need not be exposed. The system may defend against adversarial attacks that flood the system with manipulated duplicate images in an attempt to trick the model by rejecting images insufficiently different from other recently received images.

Abstract: An access gateway may grant a requestor access to a computer resource. The requestor may receive a credential from an identity provider and calculate a zero-knowledge proof of possession of the credential. The requestor may use the proof to request access to the computer resource. The identity provider may record a policy corresponding to the credential in a distributed ledger. The access gateway may, subject to verifying the proof, retrieve the policy from the distributed ledger. The policy may indicate that the requestor is authorized to access the computer resource. The access gateway may grant the requestor access to the computer resource as indicated by the policy.

Abstract: A superconducting quantum interference apparatus comprising a planar array of loops where each loop constitutes a superconducting quantum interference device, and a magnetic shield disposed over part of one of the loops so to protect the covered part of the loop from exposure to a magnetic field.

Abstract: An access gateway may grant a requestor access to a computer resource. The requestor may receive a credential from an identity provider and calculate a zero-knowledge proof of possession of the credential. The requestor may use the proof to request access to the computer resource. The identity provider may record a policy corresponding to the credential in a distributed ledger. The access gateway may, subject to verifying the proof, retrieve the policy from the distributed ledger. The policy may indicate that the requestor is authorized to access the computer resource. The access gateway may grant the requestor access to the computer resource as indicated by the policy.

Abstract: A computing system that is configured to receive requests to send computer executable programs to a data owner system associated with a data source for execution of the computer executable program by the data owner system. The data owner system may store to a blockchain a permitted list of programming functions, function libraries, function syntax definitions, and execution environment requirements. The computing system may be further configured to retrieve the permitted lists. The computing system may be further configured to evaluate the computer executable program using the permitted lists to determine if the computer executable program may be executed by the data owner system. The evaluation may be performed by generating an abstract syntax tree of the computer executable program. The computing system may be further configured to send the computer executable program to the data owner system if the computer executable program satisfies the conditions of the permitted lists.

Abstract: An access gateway may grant a requestor access to a computer resource. The requestor may receive a credential from an identity provider and calculate a zero-knowledge proof of possession of the credential. The requestor may use the proof to request access to the computer resource. The identity provider may record a policy corresponding to the credential in a distributed ledger. The access gateway may, subject to verifying the proof, retrieve the policy from the distributed ledger. The policy may indicate that the requestor is authorized to access the computer resource. The access gateway may grant the requestor access to the computer resource as indicated by the policy.

Abstract: System and method relates to an advanced manufactured vapor-fed electrochemical reactor (AM-VFR) system comprising a cathode gas compartment comprising a first inlet, and a first outlet, a catholyte compartment having a centrally located window for a cathode and a membrane, a second inlet, a second outlet, and a reference electrode, an anolyte compartment having a centrally located window for the membrane and an anode, a third inlet and a third outlet and an anode gas compartment having a fourth inlet and a fourth outlet, wherein the cathode, wherein the cathode is disposed between the cathode gas compartment and the catholyte compartment, wherein the membrane is disposed between the catholyte compartment and the anolyte compartment, wherein the anode is disposed between the anolyte compartment and the anode gas compartment, and wherein one or more of the cathode gas compartment, the catholyte compartment, the anolyte compartment and the anode gas compartment are made of a 3D printing plastic.

Abstract: An access gateway may grant a requestor access to a computer resource. The requestor may receive a credential from an identity provider and calculate a zero-knowledge proof of possession of the credential. The requestor may use the proof to request access to the computer resource. The identity provider may record a policy corresponding to the credential in a distributed ledger. The access gateway may, subject to verifying the proof, retrieve the policy from the distributed ledger. The access gateway may grant the requestor access to the computer resource as indicated by the policy. For example, the access gateway may allow the requestor to transfer data from a classified data storage component to a declassified data storage component. In some cases, the classified data storage component may encrypt data (e.g., using an encryption key provided by the requestor and/or the declassified data storage component) prior to transfer.

Abstract: An access gateway may grant a requestor access to a computer resource. The requestor may receive a credential from an identity provider and calculate a zero-knowledge proof of possession of the credential. The requestor may use the proof to request access to the computer resource. The identity provider may record a policy corresponding to the credential in a distributed ledger. The access gateway may, subject to verifying the proof, retrieve the policy from the distributed ledger. The policy may indicate that the requestor is authorized to access the computer resource. The access gateway may grant the requestor access to the computer resource as indicated by the policy.

Abstract: An advanced manufactured electrochemical reactor to convert air (N2+O2) to nitric acid (HNO3) and ammonia (NH3). The electrochemical reactor platform can be tailored via advanced manufacturing to improve activity, selectivity, energy efficiency and stability of the reactions.

Abstract: Multiple systems may determine neural-network output data and neural-network parameter data and may transmit the data therebetween to train and run the neural-network model to predict an event given input data. A data-provider system may perform a dot-product operation using encrypted data, and a secure-processing component may decrypt and process that data using an activation function to predict an event. Multiple secure-processing components may be used to perform a multiplication operation using homomorphic encrypted data.

Abstract: A computer-implemented method, comprising accessing an image comprising a handheld device, wherein the image is captured by one or more cameras associated with the computing device, generating a cropped image that comprises a hand of a user or the handheld device from the image by processing the image, generating a vision-based six degrees of freedom (6DoF) pose estimation for the handheld device by processing the cropped image, metadata associated with the image, and first sensor data from one or more sensors associated with the handheld device, generating a map-based 6DoF pose estimation using the handheld device, and generating a final 6DoF pose estimation for the handheld device based on the vision-based 6DoF pose estimation and the map-based 6DoF pose estimation generated using the handheld device.

Abstract: A computing system that is configured for a federated wallet with cryptographically secure signature delegation. The system may be configured to receive a session public key corresponding to a decentralized application and a user. The system may be further configured to receive an unsigned transaction of a blockchain, the unsigned transaction corresponding to the user. The system may be further configured to provide a symmetric encryption key to the user's device for encrypting the user's private signing key. The system may be further configured to determine, using the session public key, that the unsigned transaction is valid. Based on the validity of the unsigned transaction, the system may send the unsigned transaction to the user's device. The system may send the symmetric encryption key to the user's device to decrypt the private signing key. The system may be further configured to receive a signed transaction for submission to the blockchain.

Abstract: A thermo-electrochemical reactive capture apparatus includes an anode and a cathode, wherein the anode includes a first catalyst, wherein the cathode includes a second catalyst, a porous ceramic support positioned between the anode and the cathode, an electrolyte mixture in pores of the ceramic support, and a steam flow system on an outer side of the cathode. The outer side of the cathode is opposite an inner side of the cathode and the inner side of the cathode is adjacent to the ceramic support. In addition, the electrolyte mixture is configured to be molten at a temperature below about 600° C.

Abstract: A computing system that is configured to receive requests to send computer executable programs to a data owner system associated with a data source for execution of the computer executable program by the data owner system. The data owner system may store to a blockchain a permitted list of programming functions, function libraries, function syntax definitions, and execution environment requirements. The computing system may be further configured to retrieve the permitted lists. The computing system may be further configured to evaluate the computer executable program using the permitted lists to determine if the computer executable program may be executed by the data owner system. The evaluation may be performed by generating an abstract syntax tree of the computer executable program. The computing system may be further configured to send the computer executable program to the data owner system if the computer executable program satisfies the conditions of the permitted lists.

Abstract: A superconducting quantum interference apparatus comprising a planar array of loops where each loop constitutes a superconducting quantum interference device, and a magnetic shield disposed over part of one of the loops so to protect the covered part of the loop from exposure to a magnetic field.

Abstract: A request to train a neural-network model is received, as are a first offer to supply encrypted training data and a second offer to train the model. After determining that the offers satisfy the request, a model provider told to train the model. If they model performs in accordance with a quality metric, it is sent to a model user.

Abstract: A computing system that is configured for a federated wallet with cryptographically secure signature delegation. The system may be configured to receive a session public key corresponding to a decentralized application and a user. The system may be further configured to receive an unsigned transaction of a blockchain, the unsigned transaction corresponding to the user. The system may be further configured to provide a symmetric encryption key to the user's device for encrypting the user's private signing key. The system may be further configured to determine, using the session public key, that the unsigned transaction is valid. Based on the validity of the unsigned transaction, the system may send the unsigned transaction to the user's device. The system may send the symmetric encryption key to the user's device to decrypt the private signing key. The system may be further configured to receive a signed transaction for submission to the blockchain.

Abstract: A computing system that is configured to receive requests to send computer executable programs to a data owner system associated with a data source for execution of the computer executable program by the data owner system. The data owner system may store to a blockchain a permitted list of programming functions, function libraries, function syntax definitions, and execution environment requirements. The computing system may be further configured to retrieve the permitted lists. The computing system may be further configured to evaluate the computer executable program using the permitted lists to determine if the computer executable program may be executed by the data owner system. The evaluation may be performed by generating an abstract syntax tree of the computer executable program. The computing system may be further configured to send the computer executable program to the data owner system if the computer executable program satisfies the conditions of the permitted lists.