Patents by Inventor Bram Cohen

Bram Cohen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11934387
    Abstract: A method for extending a blockchain comprises, at a space server: allocating an amount of drive storage for generating proofs-of-space; or accessing a first challenge based on a prior block of the blockchain, the prior block comprising a first proof-of-space and a first proof-of-time; in response to accessing the first challenge, generating a second proof-of-space based on the first challenge and the amount of drive storage, the second proof-of-space indicating allocation of the amount of drive storage; accessing a second proof-of-time based on the prior block and indicating a first time delay elapsed after extension of the blockchain with the prior block; generating a new block comprising the second proof-of-space and the second proof-of-time; and broadcasting the new block over a distributed network.
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: March 19, 2024
    Assignee: Chia Network Inc.
    Inventors: Bram Cohen, Krzysztof Pietrzak, Mariano Sorgente
  • Patent number: 11924355
    Abstract: A method for extending a blockchain includes, at a space server in a distributed network: storing a plot file. The method also includes accessing a blockchain: during a current slot in the series of slots, accessing a proof-of-space challenge based on a current slot challenge associated with the current slot and a challenge chain signage point; in response to accessing the proof-of-space challenge, retrieving a proof-of-space based on the proof-of-space challenge and the plot file; calculating a quality-based number of iterations based on the quality of the proof-of-space; generating a block comprising the proof-of-space, the challenge chain signage point, and a reward chain signage point; and broadcasting the block to the distributed network.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: March 5, 2024
    Assignee: Chia Network Inc.
    Inventors: Bram Cohen, Krzysztof Pietrzak, Mariano Sorgente
  • Publication number: 20240070666
    Abstract: A method for pooling and retrieving block rewards in a reward pool including an operator node and a set of member nodes in a distributed network extending a proof-of-space-based blockchain includes: submitting a transaction configured to generate a singleton in a set of singletons, the singleton including: an outer puzzle hash linking the singleton to a singleton puzzle hash; and an inner puzzle hash defining a pool address associated with the reward pool; generating a block including a proof-of-space and a block reward allocated to the singleton puzzle hash; detecting the block reward allocated to the singleton puzzle hash; identifying the singleton linked to the singleton puzzle hash; and submitting a transaction configured to: remove the singleton from the set of singletons; and transfer the block reward from the singleton puzzle hash to the pool address.
    Type: Application
    Filed: November 9, 2023
    Publication date: February 29, 2024
    Inventors: Bram Cohen, Matt Hauff, Mariano Sorgente, Matt Howard, Adam Kelly
  • Patent number: 11854009
    Abstract: A method for pooling and retrieving block rewards in a reward pool including an operator node and a set of member nodes in a distributed network extending a proof-of-space-based blockchain includes: submitting a transaction configured to generate a singleton in a set of singletons, the singleton including: an outer puzzle hash linking the singleton to a singleton puzzle hash; and an inner puzzle hash defining a pool address associated with the reward pool; generating a block including a proof-of-space and a block reward allocated to the singleton puzzle hash; detecting the block reward allocated to the singleton puzzle hash; identifying the singleton linked to the singleton puzzle hash; and submitting a transaction configured to: remove the singleton from the set of singletons; and transfer the block reward from the singleton puzzle hash to the pool address.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: December 26, 2023
    Assignee: Chia Network Inc.
    Inventors: Bram Cohen, Matt Hauff, Mariano Sorgente, Matt Howard, Adam Kelly
  • Publication number: 20230283474
    Abstract: Disclosed are aspects of an untrusted decentralized computing platform that includes an untrusted decentralized database which participant computing systems within the platform reach consensus on an accepted representation thereof. Some aspects of the databased include one or more directed acyclic graphs, which may include cryptographic hash pointers. Some aspects include an untrusted decentralized database architecture that includes two constituent chains. Some aspects of a consensus layer of the untrusted decentralized computing platform alternate a proof of space with a verifiable delay function to reduce compute resource waste relative to systems reliant on compute sources for proofs of work. In some aspects of a consensus layer alternating the proof-of-space and the proof-of-time, a single difficulty factors may be determined by multiplying their difficulty factors together to generate a single variable which accounts for difficulty for both proofs.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Inventors: Dan Boneh, Krzysztof Pietrzak, Bram Cohen, Lipa Long, Richard Kiss, Alex Wice, Mariano Sorgente, Benedikt Bunz, Ben Fisch
  • Publication number: 20230269087
    Abstract: A method includes: accessing a transaction to execute a target blockchain object, the transaction defining a target object identifier, a target puzzle, and a solution representing a set of arguments associated with the target puzzle; generating a target puzzle hash based on the target puzzle; identifying a first blockchain object—in a set of blockchain objects—defining a first object identifier, and a first puzzle hash representing a first puzzle; generating an output in response to executing the target puzzle based on the solution; and, in response to detecting a match between the target object identifier and the first object identifier, in response to detecting a match between the target puzzle hash and the first puzzle hash, and in response to evaluating the output as true, generating a second blockchain object in the set of blockchain objects, and removing the first blockchain object from the set of blockchain objects.
    Type: Application
    Filed: February 8, 2023
    Publication date: August 24, 2023
    Inventors: Bram Cohen, Richard Kiss, Matt Howard
  • Publication number: 20230214380
    Abstract: A method for extending a blockchain comprises, at a space server: allocating an amount of drive storage for generating proofs-of-space; or accessing a first challenge based on a prior block of the blockchain, the prior block comprising a first proof-of-space and a first proof-of-time; in response to accessing the first challenge, generating a second proof-of-space based on the first challenge and the amount of drive storage, the second proof-of-space indicating allocation of the amount of drive storage; accessing a second proof-of-time based on the prior block and indicating a first time delay elapsed after extension of the blockchain with the prior block; generating a new block comprising the second proof-of-space and the second proof-of-time; and broadcasting the new block over a distributed network.
    Type: Application
    Filed: March 7, 2023
    Publication date: July 6, 2023
    Inventors: Bram Cohen, Krzysztof Pietrzak, Mariano Sorgente
  • Patent number: 11677556
    Abstract: Disclosed are aspects of an untrusted decentralized computing platform that includes an untrusted decentralized database which participant computing systems within the platform reach consensus on an accepted representation thereof. Some aspects of the databased include one or more directed acyclic graphs, which may include cryptographic hash pointers. Some aspects include an untrusted decentralized database architecture that includes two constituent chains. Some aspects of a consensus layer of the untrusted decentralized computing platform alternate a proof of space with a verifiable delay function to reduce compute resource waste relative to systems reliant on compute sources for proofs of work. In some aspects of a consensus layer alternating the proof-of-space and the proof-of-time, a single difficulty factors may be determined by multiplying their difficulty factors together to generate a single variable which accounts for difficulty for both proofs.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: June 13, 2023
    Assignee: Chia Network Inc.
    Inventors: Dan Boneh, Krzysztof Pietrzak, Bram Cohen, Lipa Long, Richard Kiss, Alex Wice, Mariano Sorgente, Benedikt Bunz, Ben Fisch
  • Publication number: 20230121349
    Abstract: A method includes: generating a hash tree representing a structured data object including a data unit, the hash tree including a root hash and a data unit hash representing the data unit; submitting a first transaction to a distributed network, the first transaction configured to generate a blockchain object including the root hash, the blockchain object configured to generate an announcement representing membership of the data unit hash in the hash tree; and submitting a second transaction to the distributed network, the second transaction configured to trigger the blockchain object to generate the announcement based on a proof of inclusion of the data unit hash within the hash tree.
    Type: Application
    Filed: October 14, 2022
    Publication date: April 20, 2023
    Inventors: Kenneth K. Griggs, Bram Cohen
  • Publication number: 20230119482
    Abstract: A method includes, by a first node in a distributed network: generating a hash tree representing a structured data object including a data unit, the hash tree including a root hash and a data unit hash representing the data unit; accessing a non-interactive proof of inclusion representing membership of the data unit hash within the hash tree; generating a transaction configured to generate a blockchain object including the root hash; and transmitting the transaction and the non-interactive proof of inclusion to a second data node in the distributed network.
    Type: Application
    Filed: October 14, 2022
    Publication date: April 20, 2023
    Inventors: Kenneth K. Griggs, Bram Cohen
  • Publication number: 20230115694
    Abstract: A method for pooling and retrieving block rewards in a reward pool including an operator node and a set of member nodes in a distributed network extending a proof-of-space-based blockchain includes: submitting a transaction configured to generate a singleton in a set of singletons, the singleton including: an outer puzzle hash linking the singleton to a singleton puzzle hash; and an inner puzzle hash defining a pool address associated with the reward pool; generating a block including a proof-of-space and a block reward allocated to the singleton puzzle hash; detecting the block reward allocated to the singleton puzzle hash; identifying the singleton linked to the singleton puzzle hash; and submitting a transaction configured to: remove the singleton from the set of singletons; and transfer the block reward from the singleton puzzle hash to the pool address.
    Type: Application
    Filed: October 4, 2022
    Publication date: April 13, 2023
    Inventors: Bram Cohen, Matt Hauff, Mariano Sorgente, Matt Howard, Adam Kelly
  • Patent number: 11625390
    Abstract: A method for extending a blockchain comprises, at a space server: allocating an amount of drive storage for generating proofs-of-space; or accessing a first challenge based on a prior block of the blockchain, the prior block comprising a first proof-of-space and a first proof-of-time; in response to accessing the first challenge, generating a second proof-of-space based on the first challenge and the amount of drive storage, the second proof-of-space indicating allocation of the amount of drive storage; accessing a second proof-of-time based on the prior block and indicating a first time delay elapsed after extension of the blockchain with the prior block; generating a new block comprising the second proof-of-space and the second proof-of-time; and broadcasting the new block over a distributed network.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: April 11, 2023
    Assignee: Chia Network Inc.
    Inventors: Bram Cohen, Krzysztof Pietrzak, Mariano Sorgente
  • Patent number: 11621847
    Abstract: Disclosed are aspects of an untrusted decentralized computing platform that includes an untrusted decentralized database which participant computing systems within the platform reach consensus on an accepted representation thereof. Some aspects of the databased include one or more directed acyclic graphs, which may include cryptographic hash pointers. Some aspects include an untrusted decentralized database architecture that includes two constituent chains. Some aspects of a consensus layer of the untrusted decentralized computing platform alternate a proof of space with a verifiable delay function to reduce compute resource waste relative to systems reliant on compute sources for proofs of work. In some aspects of a consensus layer alternating the proof-of-space and the proof-of-time, a single difficulty factors may be determined by multiplying their difficulty factors together to generate a single variable which accounts for difficulty for both proofs.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: April 4, 2023
    Assignee: Chia Network Inc.
    Inventors: Dan Boneh, Krzysztof Pietrzak, Bram Cohen, Lipa Long, Richard Kiss, Alex Wice, Mariano Sorgente, Benedikt Bunz, Ben Fisch
  • Publication number: 20230044605
    Abstract: A method for extending a blockchain comprises, at a space server: allocating an amount of drive storage for generating proofs-of-space; or accessing a first challenge based on a prior block of the blockchain, the prior block comprising a first proof-of-space and a first proof-of-time; in response to accessing the first challenge, generating a second proof-of-space based on the first challenge and the amount of drive storage, the second proof-of-space indicating allocation of the amount of drive storage; accessing a second proof-of-time based on the prior block and indicating a first time delay elapsed after extension of the blockchain with the prior block; generating a new block comprising the second proof-of-space and the second proof-of-time; and broadcasting the new block over a distributed network.
    Type: Application
    Filed: October 25, 2022
    Publication date: February 9, 2023
    Inventors: Bram Cohen, Krzystof Pietrzak, Mariano Sorgente
  • Patent number: 11507569
    Abstract: A method for extending a blockchain comprises, at a space server: allocating an amount of drive storage for generating proofs-of-space; or accessing a first challenge based on a prior block of the blockchain, the prior block comprising a first proof-of-space and a first proof-of-time; in response to accessing the first challenge, generating a second proof-of-space based on the first challenge and the amount of drive storage, the second proof-of-space indicating allocation of the amount of drive storage; accessing a second proof-of-time based on the prior block and indicating a first time delay elapsed after extension of the blockchain with the prior block; generating a new block comprising the second proof-of-space and the second proof-of-time; and broadcasting the new block over a distributed network.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: November 22, 2022
    Assignee: Chia Network Inc.
    Inventors: Bram Cohen, Krzysztof Pietrzak, Mariano Sorgente
  • Publication number: 20220116225
    Abstract: A method for extending a blockchain includes, at a space server in a distributed network: storing a plot file. The method also includes accessing a blockchain: during a current slot in the series of slots, accessing a proof-of-space challenge based on a current slot challenge associated with the current slot and a challenge chain signage point; in response to accessing the proof-of-space challenge, retrieving a proof-of-space based on the proof-of-space challenge and the plot file; calculating a quality-based number of iterations based on the quality of the proof-of-space; generating a block comprising the proof-of-space, the challenge chain signage point, and a reward chain signage point; and broadcasting the block to the distributed network.
    Type: Application
    Filed: October 8, 2021
    Publication date: April 14, 2022
    Inventors: Bram Cohen, Krzysztof Pietrzak, Mariano Sorgente
  • Publication number: 20220045860
    Abstract: Disclosed are aspects of an untrusted decentralized computing platform that includes an untrusted decentralized database which participant computing systems within the platform reach consensus on an accepted representation thereof. Some aspects of the databased include one or more directed acyclic graphs, which may include cryptographic hash pointers. Some aspects include an untrusted decentralized database architecture that includes two constituent chains. Some aspects of a consensus layer of the untrusted decentralized computing platform alternate a proof of space with a verifiable delay function to reduce compute resource waste relative to systems reliant on compute sources for proofs of work. In some aspects of a consensus layer alternating the proof-of-space and the proof-of-time, a single difficulty factors may be determined by multiplying their difficulty factors together to generate a single variable which accounts for difficulty for both proofs.
    Type: Application
    Filed: October 5, 2021
    Publication date: February 10, 2022
    Inventors: Dan Boneh, Krzysztof Pietrzak, Bram Cohen, Lipa Long, Richard Kiss, Alex Wice, Mariano Sorgente, Benedikt Bunz, Ben Fisch
  • Publication number: 20220027355
    Abstract: A method for extending a blockchain comprises, at a space server: allocating an amount of drive storage for generating proofs-of-space; or accessing a first challenge based on a prior block of the blockchain, the prior block comprising a first proof-of-space and a first proof-of-time; in response to accessing the first challenge, generating a second proof-of-space based on the first challenge and the amount of drive storage, the second proof-of-space indicating allocation of the amount of drive storage; accessing a second proof-of-time based on the prior block and indicating a first time delay elapsed after extension of the blockchain with the prior block; generating a new block comprising the second proof-of-space and the second proof-of-time; and broadcasting the new block over a distributed network.
    Type: Application
    Filed: October 7, 2021
    Publication date: January 27, 2022
    Inventors: Bram Cohen, Krzysztof Pietrzak, Mariano Sorgente
  • Publication number: 20220029811
    Abstract: Disclosed are aspects of an untrusted decentralized computing platform that includes an untrusted decentralized database which participant computing systems within the platform reach consensus on an accepted representation thereof. Some aspects of the databased include one or more directed acyclic graphs, which may include cryptographic hash pointers. Some aspects include an untrusted decentralized database architecture that includes two constituent chains. Some aspects of a consensus layer of the untrusted decentralized computing platform alternate a proof of space with a verifiable delay function to reduce compute resource waste relative to systems reliant on compute sources for proofs of work. In some aspects of a consensus layer alternating the proof-of-space and the proof-of-time, a single difficulty factors may be determined by multiplying their difficulty factors together to generate a single variable which accounts for difficulty for both proofs.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 27, 2022
    Inventors: Dan Boneh, Krzysztof Pietrzak, Bram Cohen, Lipa Long, Richard Kiss, Alex Wice, Mariano Sorgente, Benedikt Bunz, Ben Fisch
  • Patent number: 11165582
    Abstract: Disclosed are aspects of an untrusted decentralized computing platform that includes an untrusted decentralized database which participant computing systems within the platform reach consensus on an accepted representation thereof. Some aspects of the databased include one or more directed acyclic graphs, which may include cryptographic hash pointers. Some aspects include an untrusted decentralized database architecture that includes two constituent chains. Some aspects of a consensus layer of the untrusted decentralized computing platform alternate a proof of space with a verifiable delay function to reduce compute resource waste relative to systems reliant on compute sources for proofs of work. In some aspects of a consensus layer alternating the proof-of-space and the proof-of-time, a single difficulty factors may be determined by multiplying their difficulty factors together to generate a single variable which accounts for difficulty for both proofs.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: November 2, 2021
    Assignee: Chia Network Inc.
    Inventors: Dan Boneh, Krzysztof Pietrzak, Bram Cohen, Lipa Long, Richard Kiss, Alex Wice, Mariano Sorgente, Benedikt Bunz, Ben Fisch