Blackcoin Core

Blackcoin Core gives a node operator software for checking and retaining Blackcoin's chain history. This is the Blackcoin-Dev implementation, whose repository calls its Protocol V4 work Quantum Quasar. The MIT-licensed source includes a background node, a desktop wallet and command-line tools. The release page has packages for Linux, Windows and macOS.

A local archive can support an explorer or another integration that needs to query past records. The node guide budgets about 100 GB of SSD headroom for an archival node with the full integration indexes, and describes an initial download of tens of gigabytes. Those are the project's planning figures, not measurements from a sync performed for this note.

Version v30.1.5.2 is a maintenance release. Its release notes describe repairs to wallet claim-input capacity and SQLite transaction ownership, plus clearer interface and operator help. The maintainers say this maintenance revision preserves consensus rules and storage formats and does not itself require a reindex or wallet recreation.

That last point needs its version context. It does not cancel requirements for someone moving from a much older version. The tagged README has separate migration and rebuild instructions, and says this branch supports archival operation only. The site's general node guide still discusses a pruned-wallet option, so readers should resolve setup choices against the documentation for their exact release.

The release page publishes a source commit, SHA256 checksums and build-provenance information. It distinguishes the signed source from platform signing. Windows packages have no Authenticode signature. The macOS applications use ad-hoc signatures and lack Developer ID signing and notarization.

Neither the release materials nor the Protocol V4 name should be read as an independent security assessment. The project itself says its post-quantum implementation is not FIPS-validated or certified. This note covers the public software and documentation; it does not establish wallet safety, sync reliability or investment value.