Question · SCITT
Is SCITT a final standard yet?
SCITT defines how signed statements about supply chain artifacts are registered on an append-only transparency service that returns a signed receipt proving registration.
01 / The answer
The short answer
Partly. The SCITT architecture was published in June 2026 as RFC 9943, an IETF Proposed Standard, together with RFC 9942 on COSE Receipts. It defines how signed statements about supply chain artifacts are registered on an append-only transparency service that returns a receipt proving registration. The companion SCITT Reference APIs specification (draft-ietf-scitt-scrapi-11) is approved and waiting in the RFC Editor queue without an RFC number. SCITT is a voluntary standard; no law requires it.
02 / The rule
What SCITT requires
SCITT defines how signed statements about supply chain artifacts are registered on an append-only transparency service that returns a signed receipt proving registration. RFC 9943, published as an IETF Proposed Standard in June 2026, gives independently checkable records of claims such as SBOMs, test results or provenance.
- 01Issuers sign statements as COSE_Sign1 messages about a specific artifact.
- 02Transparency services keep an append-only, non-equivocating log that cannot modify, delete or reorder entries.
- 03Transparency services publish and apply a registration policy, itself recorded on the log.
- 04Transparency services register a statement before releasing its COSE receipt (RFC 9942).
03 / Records
Records to keep
- 01Signed statements with their COSE receipts
- 02Transparency service registration policy
- 03Auditor log consistency checks
Optional evidence · where Planisphere fits
Keep a record anyone can check
When your team meets a duty, Planisphere can seal the event it reports as a receipt.
A disclosure shown, a review signed, a model change approved: the event your system reports.
The event becomes a sealed receipt, dated and attributed to whoever is signed in.
Paste the receipt into Verify. No account or key.
A record supports your compliance evidence process. It is not a legal finding or a certification. Systems that call Planisphere's gate API can also hold or refuse an action before it runs.
SOURCES
Go back to the source
RFC Editor
IETF Datatracker
RELATED
Related: SCITT: the full guide