March 20 in Technology History: Standards, Patents and Breakthroughs

2025

On 20 March, W3C published Verifiable Credential Data Integrity 1.0 as a Proposed Recommendation, specifying cryptographic mechanisms such as signatures and proofs to ensure authenticity and integrity of verifiable credentials.

2025

On 20 March, W3C published Data Integrity EdDSA Cryptosuites v1.0 as a Proposed Recommendation, defining suites for Data Integrity signatures using Ed25519 and supporting interoperable issuing and verification workflows.

2025

On 20 March, W3C announced Proposed Recommendation publication of Data Integrity ECDSA Cryptosuites v1.0, describing suites for generating Data Integrity signatures with ECDSA and aligning credential security tooling with widely deployed elliptic-curve implementations.