Methods and systems for generating condensed signatures for an evolving data series and applications thereof

A system comprising one or more processors and one or more non-transitory computer-readable media storing computer-executable instructions that, when executed, cause the system to perform operations comprising:

• generating, by a signer, a hash-based data authentication structure;
• selecting a first strategy, wherein the first strategy comprises a process for updating a first data structure;
• forming, by the signer, the first data structure according to the first strategy, wherein the first data structure comprises one or more node hash values and is configured for verifying digital signatures relative to the hash-based data authentication structure, and wherein the one or more node hash values are associated with one or more nodes of the hash-based data authentication structure;
• and
• publishing the first data structure for access by a verifier, wherein the verifier comprises a processor that is configured to determine whether the first data structure is capable of verifying a digital signature and to either:
• use the first data structure to verify the digital signature or access a subsequently published second data structure that has been updated according to the first strategy to verify the digital signature.

One or more non-transitory computer-readable media storing instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

• generating, by a signer, a hash-based data authentication structure;
• selecting a first strategy, wherein the first strategy comprises a process for updating a first data structure;
• forming, by the signer, the first data structure according to the first strategy, wherein the first data structure comprises one or more node hash values and is configured for verifying digital signatures relative to the hash-based data authentication structure, and wherein the one or more node hash values are associated with one or more nodes of the hash-based data authentication structure;
• and
• publishing the first data structure for access by a verifier, wherein the verifier comprises a processor that is configured to determine whether the first data structure is capable of verifying a digital signature and to either:
• use the first data structure to verify the digital signature or access a subsequently published second data structure that has been updated according to the first strategy to verify the digital signature.