BlockCommon
BlockCommon is a specification and reference implementation designed to standardize the structure, metadata, and exchange protocol for blocks used in distributed ledger systems. It provides a canonical block format, a minimal protocol layer, and a set of interoperability guarantees so that data blocks created on one network can be validated and interpreted on another. The aim is to facilitate cross-ledger data sharing, improve verifiability, and reduce integration costs while preserving cryptographic integrity and auditability.
BlockCommon originated from a community-driven initiative begun in the early 2020s by researchers, developers, and vendors
Key features include a canonical block header (block_id, previous_hash, timestamp, and merkle_root), a payload area for
Adoption remains diverse, with several blockchain platforms and distributed databases offering BlockCommon-compatible adapters or modules. Typical
Limitations include potential performance overhead, schema complexity, and the need for aligned governance across participating networks