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公开(公告)号：US20210182837A1
公开(公告)日：2021-06-17
申请号：US17009083
申请日：2020-09-01
摘要： Transaction handling computing elements comprise a network core that processes transaction requests into a blockchain, wherein a data block is a collection of transactions, and wherein an Unspent Transaction Output (UTXO) supporting the blockchain is an output from a finalized transaction. The elements interoperate with a transaction signing mechanism that associates a set of addresses on the blockchain with a delegate address, the delegate address having a set of signing public keys corresponding to one or more signing private keys used to sign UTXOs. In association with a new transaction being processed by the set of transaction handling components, a signing public key for an associated UXTO is located by following an address chain that includes an address in the set of addresses together with the delegate address. The signing public key is retrieved from a location associated with the delegate address and then used to sign (unlock) the associated UXTO.
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2.发明申请公开(公告)号：US20230098185A1
公开(公告)日：2023-03-30
申请号：US18075721
申请日：2022-12-06
IPC分类号： G06F16/23 , H04L9/32 , G06F16/22 , H04L67/10 , G06Q20/36 , H04L9/08 , H04L9/30 , G06F16/27 , G06Q20/40 , G06Q30/02 , G06F21/64
摘要： A set of transaction handling computing elements comprise a network core that receive and process transaction requests into an append-only immutable chain of data blocks, wherein a data block is a collection of transactions, and wherein an Unspent Transaction Output (UTXO) data structure supporting the immutable chain of data blocks is an output from a finalized transaction. Typically, the UTXO data structure consists essentially of an address and a value. In this approach, at least one UTXO data structure is configured to include information either in addition to or in lieu of the address and value, thereby defining a Transaction Output (TXO). A TXO may have a variety of types, and one type includes an attribute that encodes data. In response to receipt of a request to process a transaction, the set of transaction handling computing elements are executed to process the transaction into a block using at least the information in the TXO.
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3.发明申请公开(公告)号：US20210182895A1
公开(公告)日：2021-06-17
申请号：US16872695
申请日：2020-05-12
摘要： A set of transaction handling computing elements comprise a network core that receive and process transaction requests into an append-only immutable chain of data blocks, wherein a data block is a collection of transactions, and wherein an Unspent Transaction Output (UTXO) data structure supporting the immutable chain of data blocks is an output from a finalized transaction. Typically, the UTXO data structure consists essentially of an address and a value. In this approach, at least one UTXO data structure is configured to include information either in addition to or in lieu of the address and value, thereby defining a Transaction Output (TXO). A TXO may have a variety of types, and one type includes an attribute that encodes data. In response to receipt of a request to process a transaction, the set of transaction handling computing elements are executed to process the transaction into a block using at least the information in the TXO.
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4.发明授权公开(公告)号：US11544252B2
公开(公告)日：2023-01-03
申请号：US16872695
申请日：2020-05-12
IPC分类号： G06F16/23 , H04L9/32 , G06F16/22 , H04L67/10 , G06Q20/36 , H04L9/08 , H04L9/30 , G06F16/27 , G06Q20/40 , G06Q30/02 , G06Q20/20 , H04L9/00
摘要： A set of transaction handling computing elements comprise a network core that receive and process transaction requests into an append-only immutable chain of data blocks, wherein a data block is a collection of transactions, and wherein an Unspent Transaction Output (UTXO) data structure supporting the immutable chain of data blocks is an output from a finalized transaction. Typically, the UTXO data structure consists essentially of an address and a value. In this approach, at least one UTXO data structure is configured to include information either in addition to or in lieu of the address and value, thereby defining a Transaction Output (TXO). A TXO may have a variety of types, and one type includes an attribute that encodes data. In response to receipt of a request to process a transaction, the set of transaction handling computing elements are executed to process the transaction into a block using at least the information in the TXO.
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公开(公告)号：US20220237594A1
公开(公告)日：2022-07-28
申请号：US17577445
申请日：2022-01-18
摘要： A payment network comprises ledger services, and associated wallet services. To provide wallet services resiliency, multiple active wallet replicas are used to enable the system (i) to rely on collision detection and blockchain idempotency to produce a single correct outcome, and (2) to implement various collision avoidance techniques. Using a ledger services idempotency feature, multiple actors form independent valid intents and know that no more than one intent will get finalized on the ledger. In a variant embodiment, replicas implement processing delays and utilize so-called “intent” messages. By adding the delays, decision logic is biased logic towards one intent. The intent messages are used to intercede before a wallet handles a same original upstream message and forms a different intent. Seeing the replica's intent, the wallet can adopt the same intent and proceed with downstream processing. After adopting intent, preferably a wallet also informs its replicas of its intent.
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公开(公告)号：US20210334176A1
公开(公告)日：2021-10-28
申请号：US17011626
申请日：2020-09-03
发明人： William R. Sears , Leen AlShenibr , Samuel Erb
摘要： A method operative in association with a set of transaction handling computing elements that comprise a network core that receive and process transaction requests into an append-only immutable chain of data blocks, wherein a data block is a collection of transactions, and wherein presence of a transaction recorded within a data block is verifiable via a cryptographic hash, and wherein Unspent Transaction Output (UTXO) data structures supporting the immutable chain of data blocks are maintained in a UTXO database, wherein a UXTO is an output from a finalized transaction that contains a value. The technique herein includes periodically snapshotting a given portion of the UTXO database to generate a hash. The hash of the snapshot is recorded within the immutable chain of data blocks, and preferably within a given block header. In responsive to a receipt of a recovery request, and to facilitate recovery of the system to a provably-known state, a consensus algorithm is executed over the UXTO snapshot.
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7.发明申请公开(公告)号：US20210182277A1
公开(公告)日：2021-06-17
申请号：US16916464
申请日：2020-06-30
摘要： A set of transaction handling computing elements comprise a network core that receive and process transaction requests into an append-only immutable chain of data blocks, wherein a data block is a collection of transactions, and wherein an Unspent Transaction Output (UTXO) data structure supporting the immutable chain of data blocks is an output from a finalized transaction. Typically, the UTXO data structure consists essentially of an address and a value. In this approach, at least one UTXO data structure is configured to include information either in addition to or in lieu of the address and value, thereby defining a Transaction Output (TXO). A TXO may have a variety of types, and one type includes an attribute that encodes data. In response to receipt of a request to process a transaction, the set of transaction handling computing elements are executed to process the transaction into a block using at least the information in the TXO.
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公开(公告)号：US10986027B1
公开(公告)日：2021-04-20
申请号：US16365502
申请日：2019-03-26
发明人： William R. Sears , Martin K. Lohner
IPC分类号： H04L12/851 , H04L12/803 , H04L12/46
摘要： A method of congestion control implemented by a sender over a network link that includes a router having a queue. During a first state, information is received from a receiver. The information comprises an estimated maximum bandwidth for the link, a one-way transit time for traffic over the link, and an indication whether the link is congested. In response to the link being congested, the sender transitions to a second state. While in the second state, a sending rate of packets is reduced, in part to attempt to drain the queue of data packets contributed by the sender. The sender transitions to a third state when the sender estimates that the queue has been drained of the data packets contributed. During the third state, the sending rate is increased until either the sender transitions back to the first state, or receives a new indication that the link is congested.
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9.发明授权公开(公告)号：US11520777B2
公开(公告)日：2022-12-06
申请号：US16916464
申请日：2020-06-30
IPC分类号： G06F16/00 , G06F16/23 , H04L9/32 , G06F16/22 , H04L67/10 , G06Q20/36 , H04L9/08 , H04L9/30 , G06F16/27 , G06Q20/40 , G06Q30/02 , G06Q20/20 , H04L9/00
摘要： A set of transaction handling computing elements comprise a network core that receive and process transaction requests into an append-only immutable chain of data blocks, wherein a data block is a collection of transactions, and wherein an Unspent Transaction Output (UTXO) data structure supporting the immutable chain of data blocks is an output from a finalized transaction. Typically, the UTXO data structure consists essentially of an address and a value. In this approach, at least one UTXO data structure is configured to include information either in addition to or in lieu of the address and value, thereby defining a Transaction Output (TXO). A TXO may have a variety of types, and one type includes an attribute that encodes data. In response to receipt of a request to process a transaction, the set of transaction handling computing elements are executed to process the transaction into a block using at least the information in the TXO.
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公开(公告)号：US20210243128A1
公开(公告)日：2021-08-05
申请号：US17233742
申请日：2021-04-19
发明人： William R. Sears , Martin K. Lohner
IPC分类号： H04L12/851 , H04L12/803
摘要： A method of congestion control implemented by a sender over a network link that includes a router having a queue. During a first state, information is received from a receiver. The information comprises an estimated maximum bandwidth for the link, a one-way transit time for traffic over the link, and an indication whether the network link is congested. In response to the link being congested, the sender transitions to a second state. While in the second state, a sending rate of packets in reduced, in part to attempt to drain the queue of data packets contributed by the sender. The sender transitions to a third state when the sender estimates that the queue has been drained of the data packets contributed. During the third state, the sending rate is increased until either the sender transitions back to the first state, or receives a new indication that the link is congested.
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