Abstract: A regulator valve has a check valve manifold for use in subsea control circuits. For example, the regulator valve having the check valve manifold can be used in a circuit between a directional control valve and an actuator for a gate valve. The check valve manifold can have a flange that attaches to the regulator valve to communicate with the supply-side and outlet-side of the regulator valve. Internal communication inside the manifold includes a check valve. If the pressure in the circuit downstream of the regulator valve needs to be vented, the check valve can open to allow the pressure to bleed from the outlet-side back to the supply-side without needing to pass through the internal pressure control valve of the regulator.

Abstract: A computer-based system, method, and program product for providing liquidity for exchanges of digital assets ensure that an automated market maker program provides liquidity to support such an exchange. The system includes a blockchain network with multiple nodes. A node is be configured to execute an automated market maker (AMM) cryptographic system configured to receive collateral assets from other nodes, encapsulate the assets in a collateral pool, and mint a collateral token from the encapsulated assets. The token is configured to consolidate liquidity within a blockchain protocol for an exchange of a digital asset. A blockchain clearinghouse control system may be implemented upon the network to process the token and approve the exchange if performed/facilitated by/on the node or disapprove the exchange if performed separately from the node. Such a control system thereby ensures that the exchange is secure and that the AMM system provides liquidity to support the exchange.

Abstract: Systems and methods are provided that authorize blockchain network transactions based on a work requirement. A blockchain network has a plurality of nodes. At least one node of the plurality of nodes is configured to determine whether a token has satisfied a work requirement. The work requirement represents participation of performing work within the blockchain network. The at least one node is further configured to approve a transaction as a function of determining that the work requirement has been satisfied and, to disapprove the transaction as a function of determining that the work requirement has not been satisfied. By enabling the transaction to be approved based on a work requirement, the token, for example, can be authenticated as having an inherent functional value. In this way, the blockchain network or token exchange can attest to the token not being a security, which would be subject to federal securities and regulations.

Abstract: Embodiments include systems and methods for generating, evolving, and transacting digital assets in a producer and player gaming ecosystem platform. In an embodiment, a blockchain computer system for generating and computationally evolving digital assets includes a blockchain computer network and an embedded virtual machine (VM). The network is configured to process transactions of digital assets. The VM is configured to decode, via a decoder, a smart contract on the network. The contract is configured to implement digital asset generation and core user activity mechanisms. In an embodiment, the platform may be configured with a hero ascension loop that enables players to earn hero shards via play-to-earn performance (P2E). Players may trade or use shards to ascend. In an embodiment, the platform may be configured with a gear loop that enables player to earn gear shards via P2E. Players may trade or use shards to buy/evolve gear originally minted by producers.

Abstract: Embodiments include systems and methods for transacting and evolving digital assets received in a distributed ledger based “loot-box” or “gacha” system. In an embodiment, a blockchain computer system for computationally evolving digital assets and controlling digital asset transactions includes a blockchain computer network and an embedded virtual machine (VM). The blockchain computer network is configured to process transactions of digital assets. The embedded virtual machine (VM) is configured to decode, via a decoder, a smart contract on the blockchain computer network. The smart contract is configured to, based on at least one user activity value, computationally evolve at least one digital asset. The smart contract is further configured to control, based on at least one threshold criterion, at least one transaction of a computationally evolved digital asset of the at least one digital asset on the blockchain computer network.

Abstract: Systems, devices, and methods for determining an optimal position for a physiological sensor against a subject are described herein. A system may include a physiological sensor and a processing device. The processing device may store and execute instructions to receive a first signal generated by the physiological sensor as the physiological sensor is at a first position relative to the body part, receive a second signal generated by the physiological sensor as the physiological sensor is at a second position relative to the body part, determine a difference between the first signal and the second signal, determine, based on the difference, whether the first position or the second position is more closely aligned to a vein or an artery of the subject; and generate an indicator that indicates whether the first position or the second position is more closely aligned to the vein or the artery.

Abstract: Systems and methods are provided that authorize blockchain network transactions based on a work requirement. A blockchain network has a plurality of nodes. At least one node of the plurality of nodes is configured to determine whether a token has satisfied a work requirement. The work requirement represents participation of performing work within the blockchain network. The at least one node is further configured to approve a transaction as a function of determining that the work requirement has been satisfied and, to disapprove the transaction as a function of determining that the work requirement has not been satisfied. By enabling the transaction to be approved based on a work requirement, the token, for example, can be authenticated as having an inherent functional value. In this way, the blockchain network or token exchange can attest to the token not being a security, which would be subject to federal securities and regulations.

Abstract: Systems and methods exchange a nonfungible token (NFT) via blockchain cross-chain fungible token transfers using first and second blockchains. The first blockchain holds the NFT in a first escrow digital wallet. The NFT is available for trade by a seller and is associated with a trade value. The first blockchain monitors a balance of fungible tokens, owned by a buyer, that are transferred from a second blockchain to a second escrow digital wallet of the first blockchain. In response to detecting that the balance monitored represents the trade value, the first blockchain transfers, simultaneously, (i) the NFT from the first escrow digital wallet to a first digital wallet of the first blockchain, the first digital wallet owned by the buyer, and (ii) the balance of fungible tokens from the second escrow digital wallet to a second digital wallet of the second blockchain, the second digital wallet owned by the seller.

Abstract: A system and corresponding method, for blockchain cryptocurrency exchange, track at least one pending blockchain transaction on a corresponding blockchain. The at least one pending blockchain transaction has been executed, but not yet committed, on the corresponding blockchain. The system and corresponding method determine whether an unexecuted blockchain transaction for cryptocurrency exchange is valid or invalid as a function of transaction information associated with the unexecuted blockchain transaction and the at least one pending blockchain transaction. The system and corresponding method output a result indicating whether the unexecuted blockchain transaction was determined to be valid or invalid, causing the unexecuted blockchain transaction to be executed or denied, respectively.

Abstract: A regulator valve has a check valve manifold for use in subsea control circuits. For example, the regulator valve having the check valve manifold can be used in a circuit between a directional control valve and an actuator for a gate valve. The check valve manifold can have a flange that attaches to the regulator valve to communicate with the supply-side and outlet-side of the regulator valve. Internal communication inside the manifold includes a check valve. If the pressure in the circuit downstream of the regulator valve needs to be vented, the check valve can open to allow the pressure to bleed from the outlet-side back to the supply-side without needing to pass through the internal pressure control valve of the regulator.

Abstract: A regulator valve has a check valve manifold for use in subsea control circuits. For example, the regulator valve having the check valve manifold can be used in a circuit between a directional control valve and an actuator for a gate valve. The check valve manifold can have a flange that attaches to the regulator valve to communicate with the supply-side and outlet-side of the regulator valve. Internal communication inside the manifold includes a check valve. If the pressure in the circuit downstream of the regulator valve needs to be vented, the check valve can open to allow the pressure to bleed from the outlet-side back to the supply-side without needing to pass through the internal pressure control valve of the regulator.

Abstract: Systems and methods exchange a nonfungible token (NFT) via blockchain cross-chain fungible token transfers using first and second blockchains. The first blockchain holds the NFT in a first escrow digital wallet. The NFT is available for trade by a seller and is associated with a trade value. The first blockchain monitors a balance of fungible tokens, owned by a buyer, that are transferred from a second blockchain to a second escrow digital wallet of the first blockchain. In response to detecting that the balance monitored represents the trade value, the first blockchain transfers, simultaneously, (i) the NFT from the first escrow digital wallet to a first digital wallet of the first blockchain, the first digital wallet owned by the buyer, and (ii) the balance of fungible tokens from the second escrow digital wallet to a second digital wallet of the second blockchain, the second digital wallet owned by the seller.

Abstract: A computer-based system, computer-implemented method, and computer program product for establishing an instantaneous computational value of an asset cluster leverage a composable asset control system implemented upon one or more blockchain computer networks. The composable asset control system is configured to resample a non-fungible digital asset and a digital representation of a cryptographic asset. The composable asset control system is further configured to configure an asset cluster by configuring a binding secured by the blockchain computer network. The composable asset control system is further configured to quantify an instantaneous computational value of the asset cluster based on a value of the cryptographic asset. The composable asset control system is further configured to encode in at least one smart contract a regulator configured to control transfer and use of the asset cluster.

Abstract: A system and corresponding method, for blockchain cryptocurrency exchange, track at least one pending blockchain transaction on a corresponding blockchain. The at least one pending blockchain transaction has been executed, but not yet committed, on the corresponding blockchain. The system and corresponding method determine whether an unexecuted blockchain transaction for cryptocurrency exchange is valid or invalid as a function of transaction information associated with the unexecuted blockchain transaction and the at least one pending blockchain transaction. The system and corresponding method output a result indicating whether the unexecuted blockchain transaction was determined to be valid or invalid, causing the unexecuted blockchain transaction to be executed or denied, respectively.

Abstract: Embodiments include systems and methods for electronic wallet verification. In an embodiment, a blockchain computer system for real-time electronic wallet verification includes a fraud prevention computer system. The fraud prevention computer system is configured to protect user privacy and includes a virtual machine (VM) with a blockchain oracle. The blockchain oracle is configured to bridge one or more off-chain compliance and privacy protection interfaces. The virtual machine (VM) is configured to decode, via a decoder, a first smart contract on a blockchain computer network. The first smart contract on the blockchain computer network, in response to receiving a compliance check request including an electronic wallet, is configured to verify the electronic wallet by dynamically querying the one or more off-chain compliance and privacy protection interfaces for the electronic wallet via the blockchain oracle.

Abstract: Systems and methods are provided that authorize blockchain network transactions based on a work requirement. A blockchain network has a plurality of nodes. At least one node of the plurality of nodes is configured to determine whether a token has satisfied a work requirement. The work requirement represents participation of performing work within the blockchain network. The at least one node is further configured to approve a transaction as a function of determining that the work requirement has been satisfied and, to disapprove the transaction as a function of determining that the work requirement has not been satisfied. By enabling the transaction to be approved based on a work requirement, the token, for example, can be authenticated as having an inherent functional value. In this way, the blockchain network or token exchange can attest to the token not being a security, which would be subject to federal securities and regulations.

Abstract: Systems and methods exchange a nonfungible token (NFT) via blockchain cross-chain fungible token transfers using first and second blockchains. The first blockchain holds the NFT in a first escrow digital wallet. The NFT is available for trade by a seller and is associated with a trade value. The first blockchain monitors a balance of fungible tokens, owned by a buyer, that are transferred from a second blockchain to a second escrow digital wallet of the first blockchain. In response to detecting that the balance monitored represents the trade value, the first blockchain transfers, simultaneously, (i) the NFT from the first escrow digital wallet to a first digital wallet of the first blockchain, the first digital wallet owned by the buyer, and (ii) the balance of fungible tokens from the second escrow digital wallet to a second digital wallet of the second blockchain, the second digital wallet owned by the seller.

Abstract: Systems and methods exchange a nonfungible token (NFT) via blockchain cross-chain fungible token transfers using first and second blockchains. The first blockchain holds the NFT in a first escrow digital wallet. The NFT is available for trade by a seller and is associated with a trade value. The first blockchain monitors a balance of fungible tokens, owned by a buyer, that are transferred from a second blockchain to a second escrow digital wallet of the first blockchain. In response to detecting that the balance monitored represents the trade value, the first blockchain transfers, simultaneously, (i) the NFT from the first escrow digital wallet to a first digital wallet of the first blockchain, the first digital wallet owned by the buyer, and (ii) the balance of fungible tokens from the second escrow digital wallet to a second digital wallet of the second blockchain, the second digital wallet owned by the seller.

Abstract: A regulator valve has a check valve manifold for use in subsea control circuits. For example, the regulator valve having the check valve manifold can be used in a circuit between a directional control valve and an actuator for a gate valve. The check valve manifold can have a flange that attaches to the regulator valve to communicate with the supply-side and outlet-side of the regulator valve. Internal communication inside the manifold includes a check valve. If the pressure in the circuit downstream of the regulator valve needs to be vented, the check valve can open to allow the pressure to bleed from the outlet-side back to the supply-side without needing to pass through the internal pressure control valve of the regulator.