Application US20190042989

WORKFLOW MANAGEMENT VIA BLOCK CHAINS
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US20190042989

1. A computer-implemented method for managing workflows comprising: (5) (4)

obtaining a workflow specification and data related to the workflow specification, the workflow specification comprising one or more states and one or more operations, each operation corresponding to at least one of the one or more states;

generating a block chain for the workflow specification comprising at least a first data block;

storing the workflow specification and data related to the workflow specification in the first data block; and

for each of the one or more states: identifying an operation corresponding to a current state of the workflow;

performing the operation;

appending a data block to the block chain, the appended data block including a reference to the first data block and a reference to a data block preceding the appended data block; and

transitioning from the current state to a next state.

2. The method of claim 1, wherein the data block appended to the block chain includes a reference to another block chain. (0)

3. The method of claim 1, further comprising: (1) (2)

5. The method of claim 1, wherein a cryptographic hash creates a link between each data block and a preceding data block and creates a link between each data block and a subsequent data block. (1) (0)

7. The method of claim 1, wherein an input to each of the one or more operations includes at least an attestation to an occurrence of a state corresponding to a preceding operation. (0)

8. The method of claim 1, further comprising: (0) (2)

9. A computer-readable storage medium storing instructions, which, when executed on a processor, perform an operation to manage workflows, the operation comprising: (4) (4)

generating a block chain for the workflow specification comprising at least a first data block;

storing the workflow specification and data related to the workflow specification in the first data block; and

for each of the one or more states: identifying an operation corresponding to a current state of the workflow;

performing the operation;

appending a data block to the block chain, the appended data block including a reference to the first data block and a reference to a data block preceding the appended data block; and

transitioning from the current state to a next state.

10. The computer-readable storage medium of claim 9, wherein the data block appended to the block chain includes a reference to another block chain. (0)

11. The computer-readable storage medium of claim 9, the operation further comprising: (1) (2)

13. The computer-readable storage medium of claim 9, wherein a cryptographic hash creates a link between a data block and a preceding data block and creates a link between the data block and a subsequent data block. (0)

14. The computer-readable storage medium of claim 9, the operation further comprising: (0) (1)

15. A system, comprising: (4) (2)

a processor; and

a memory hosting an application, which, when executed on the processor, performs an operation to manage workflows, the operation comprising: obtaining a workflow specification and data related to the workflow specification, the workflow specification comprising one or more states and one or more operations, each operation corresponding to at least one of the one or more states;

generating a block chain for the workflow specification comprising at least a first data block;

storing the workflow specification and data related to the workflow specification in the first data block; and

for each of the one or more states: identifying an operation corresponding to a current state of the workflow;

performing the operation;

appending a data block to the block chain, the appended data block including a reference to the first data block and a reference to a data block preceding the appended data block; and

transitioning from the current state to a next state.

16. The system of claim 15, wherein the data block appended to the block chain includes a reference to another block chain. (0)

17. The system of claim 15, the operation further comprising: (1) (2)

19. The system of claim 15, wherein a cryptographic hash creates a link between a data block and a preceding data block and creates a link between the data block and a subsequent data block. (0)

20. The system of claim 15, the operation further comprising: (0) (1)

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Application US20190042989

WORKFLOW MANAGEMENT VIA BLOCK CHAINS

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