Hybrid blockchain
AssigneeAccenture Global Solutions Limited
InventorsGiuseppe Ateniese, Michael T. Chiaramonte, David Treat, Bernardo Magri, Daniele Venturi
Life of this patent
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Abstract
A system includes circuitry for performing hybrid blockchain rewrites by trusted parties. The hybrid blockchain may include blocks with multiple parts. In some cases, the blocks may include a core part and a tertiary part. The system may include conditions for validity preserving and/or non-tamper-evident rewrites to the parts of the block. The conditions to support rewrites to the core part may be more stringent than the corresponding conditions to support rewrites to the tertiary part. In some cases, the core part may be write-locked.
Claims20
A system including:
- memory configured to store a data-tamper-protected blockchain including blocks appended in series, the blocks including:
- a subsequent block;
- an intermediate block data-tamper-protected by the subsequent block;
- and
- an initial block including:
- a core part data-tamper-protected by the intermediate block;
- and
- a tertiary part also data-tamper-protected by the intermediate block;
- and
- rewrite circuitry configured to perform a validity-preserving rewrite to the tertiary part based on a unilateral authority of a trusted party,
- the unilateral authority of the trusted party being insufficient to support a validity-preserving rewrite to the core part.
A method including:
- for a data-tamper-protected blockchain including blocks appended in series, the blocks including:
- a subsequent block;
- an intermediate block data-tamper-protected by the subsequent block;
- and
- an initial block including:
- a core part data-tamper-protected by the intermediate block;
- and
- a tertiary part also data-tamper-protected by the intermediate block;
- and
- using rewrite circuitry, performing a validity-preserving rewrite to the tertiary part based on a unilateral authority of a trusted party,
- the unilateral authority of the trusted party being insufficient to support a validity-preserving rewrite to the core part.
A product including:
- machine-readable media other than a transitory signal;
- and
- instructions stored on the machine-readable media, the instructions configured to, when executed cause a machine to:
- for a data-tamper-protected blockchain including blocks appended in series, the blocks including:
- a subsequent block;
- an intermediate block data-tamper-protected by the subsequent block;
- and
- an initial block including:
- a core part data-tamper-protected by the intermediate block;
- and
- a tertiary part also data-tamper-protected by the intermediate block;
- and
- using rewrite circuitry, perform a validity-preserving rewrite to the tertiary part based on a unilateral authority of a trusted party,
- the unilateral authority of the trusted party being insufficient to support a validity-preserving rewrite to the core part.
Dependencies are inferred from the claim text.