Sigstore and SLSA attestations spread across registries

Package signing, provenance attestations, and trusted publishing are widely implemented across various language and system registries to trace artifacts back to their source and secure supply chains. Different registries rely on varying mechanisms, ranging from Sigstore bundles and SLSA provenance to cryptographic signatures and checksum verification, with verification often treated as a separate step from downloading. While some ecosystems enforce signature checks by default, others rely on optional configurations or metadata-level verification. Open article →