# StellaOps Signer (Relocated) > **Sprint 204 (2026-03-04):** The Signer module source has been consolidated under the Attestor trust domain. > Source code is now at `src/Attestor/StellaOps.Signer/`. > Architecture documentation is now in the [Attestor architecture dossier](../attestor/architecture.md#trust-domain-model-sprint-204----2026-03-04). > Archived standalone docs are in `docs-archived/modules/signer/`. ## Runtime Identity (unchanged) - Docker image: `stellaops/signer:dev` - API base path: `/api/v1/signer/` - DSSE signing endpoint: `POST /api/v1/signer/sign/dsse` - Database schemas: `signer`, `key_management` (isolated from Attestor schema by design) ## Why the move Signer, Attestor, and Provenance form the trust domain -- the set of services responsible for cryptographic evidence production, transparency logging, and verification. Consolidating source ownership under `src/Attestor/` makes trust-boundary responsibilities explicit while preserving runtime isolation and database schema separation. See the [Trust Domain Model ADR](../attestor/architecture.md#security-boundary-no-merge-decision-adr) for the no-merge rationale.