Documentation in progress. Foundation is stable.
Comprehensive docs are being written as each surface stabilizes — full integration guides arrive Q3 2026. Until then, the DSR/1.0 specification, dsr-verifier-cli, and direct developer support cover the critical paths for Heads of Risk, CISOs, audit-firm technologists, security architects, and integration engineers evaluating Déjà for deployments under SOC 2 Type II, ISO 27001, NYDFS Part 500, DORA, or SR 11-7. Compatible with audit engagements at firms such as KPMG, Deloitte, EY, PwC, BDO, Grant Thornton, and independent firms.
Verify your first signed receipt without a Déjà account.
Install the verifier CLI
# via npm npm install -g dsr-verifier-cli # or via Homebrew brew install deja/tap/dsr-verifier
Open-source under Apache-2.0. Zero dependencies on Déjà's servers. Runs locally on your machine and verifies any DSR/1.0 signed receipt.
Download a sample receipt
# from the spec repo curl -O standard.deja.dev/ samples/r1-high.json # examine the fields cat r1-high.json | jq
Sample receipts cover every receipt class: R1 high-confidence, R1 low-confidence, R1 no-match, R2 fix failure, R2 recurrence. Use them to build a reference integration.
Verify cryptographically
# verify signature + schema dsr-verify r1-high.json # expected output ✓ valid signature ✓ DSR/1.0 schema conforming
The CLI confirms the Ed25519 signature covers the JCS-canonical payload (RFC 8785) and that the receipt conforms to DSR/1.0. This is the same verification your auditor runs — offline, independent of Déjà.
DSR/1.0 is the only authoritative doc right now.
Every other documentation surface is derived from the DSR/1.0 spec — receipt format, signing algorithm, verification procedure, canonical field definitions. Until integration guides ship, the spec is the contract. If you're building an integration, start here.
Receipts come in ten classes: R0 ingestion receipts (Enterprise+), R1-H/L/N incident attribution receipts (high-confidence, low-confidence, no-match), and R2-F/R exception receipts (fix failure, recurrence). Each has a defined schema, a fingerprint algorithm, and a deterministic signature procedure.
RECEIPT / DSR 1.0// R1-H receipt · high-confidence attribution { "receipt_id": "rcpt_8f2c91ae7b3d", "spec": "DSR/1.0", "receipt_class": "R1-H", "issued_at": "2026-04-24T18:22:47Z", "vault_id": "vault_payments_core", "incident": { "fingerprint": "sha256:a41b...c92d", "signal_source": "sentry" }, "attribution": { "causal_pr": "PR-4521", "commit_sha": "f3a2b91", "confidence_score": 0.94, "classification": "HIGH_CONFIDENCE" }, "signature": { "algo": "ed25519-v1", "value": "7fBxK2mP4nQ8vR3eL6jF1wCytY0hG9dN8kM2pX4bV7zA3rE6qJ1iU5oH0fT8cS9aB3rKwNpDqME1u+Cz4XvQRs==" } }
Every integration, with documentation status.
Available right now.
npm + brew.What ships and when.
Spec v0.9 + verifier CLI
Specification and open-source verifier are stable and public. Sample receipts available for all ten classes.
Per-provider integration guides
Full integration walkthroughs for Datadog, Sentry, GitHub, Slack, PagerDuty. Beta providers (New Relic, GitLab, Jira Service Management, ServiceNow) move to full guides as they ship.
Interactive walkthroughs + API reference
Interactive receipt-verification demo, full API reference, client SDK documentation. DSR/1.0 v1 ratified alongside.
Operator + compliance guides
Operator guide for running Déjà-connected stacks, compliance officer playbooks for SOC 2 + ISO 27001 + HIPAA audit submissions.
Get notified when full docs ship.
Leave your email and we'll notify you as each documentation surface lands — integration guides Q3, interactive walkthroughs Q4. No marketing, just doc-release updates.
Fast-track developer support.
If you're writing code that consumes Déjà webhooks or produces DSR/1.0 receipts, email us directly. We'll prioritize your questions and the answer becomes the next doc we write.
Build against the open standard.
The DSR/1.0 specification is open and stable today — everything you need to build a receipt-consuming integration. The reference verifier (dsr-verifier-cli) is currently in pre-release with Charter customer early access. When you're ready to produce signed receipts at scale, create a vault.