The certificate authority for AI artifacts and AI transactions
Generate synthetic data, upload datasets, use templates, or submit manifests. Every artifact gets a SHA-256 fingerprint, an Ed25519 signature, and a public registry entry.
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Drop any AI artifact to certify — free
Dataset · output · transaction record · content artifact — any file type
SHA-256 fingerprint computed client-side · no upload required to check
Tamper-evident · Independent verification · Reproducible SHA-256 · Ed25519 signed
Agent Commerce
Policy-governed AI agent payments
AI agents can execute real transactions with policy controls, hard stops, and signed receipts — independently verifiable by anyone.
Certification Surfaces
Every major surface CertifiedData can certify. Each generates a signed, independently verifiable proof record.
Flagship surface
Agent Commerce
Signed receipts for every AI-triggered transaction. Policy enforcement before capture. Every receipt independently verifiable.
Core platform
Datasets
Synthetic data generation, SHA-256 fingerprinting, Ed25519 certification, and public registry listing.
Content provenance
Certified Publishing
Versioned, verifiable publishing records for machine-assisted content. Provenance and integrity, not rankings.
Output certification
AI Outputs
Certify prompts, outputs, and results with tamper-evident proof of what was produced and by whom.
Built for teams that need proof across functions
CertifiedData issues independently verifiable artifacts — receipts, certificates, and decision records — that hold up outside the systems that created them.
Legal / Compliance
Third-party issued receipts and certificates that satisfy audit requests without internal access.
Finance
Signed spend records for every AI-triggered transaction — budget visibility with cryptographic provenance.
Security / Privacy
Synthetic data certification proves no real records moved. Policy-gated payments prevent unauthorized agent spend.
Engineering / ML
Artifact hashes, generation metadata, and decision lineage built into the workflow — not bolted on after.
Verifiable proof trail
Every governed action gets a verifiable proof trail
Link code, artifacts, certification, policy decisions, and execution into one machine-verifiable record. Share a stable URL with auditors, partners, or regulators — no platform access required.
Lineage
Track what each execution depended on. Receipts reference upstream proof records — the chain is included in the signed payload, making it tamper-evident.
Policy Gate
Evaluate policy rules before capture or execution. If denied, no charge is recorded. Policy decision and version are included in the signed receipt.
Public Proof
Every governed transaction gets a stable public URL showing the full trail — amount, agent, lineage, provenance, and cryptographic signature.
Tamper-evident artifacts
Any byte change breaks the SHA-256 fingerprint
Independent verification
No platform trust required — verify with openssl or sha256sum
Reproducible SHA-256
ZIP and inner file hashes locked at certification time
Ed25519 signed certificates
Cryptographic proof the cert was issued by CertifiedData
Public transparency infrastructure
Inspect the trust layer, not just the claim.
Every certificate, dataset, and decision is logged publicly. No account required.
Proof durability
Proof should outlast the platform relationship. Every certificate and receipt issued by CertifiedData is independently verifiable at a public endpoint — no account, no API key, no relationship with us required. The signature either validates or it doesn't.
Certificates
Certificate Log
Every issued certificate, publicly verifiable. Browse the full tamper-evident certificate registry.
Recent activity
Datasets
Dataset Registry
All certified synthetic datasets with fingerprints, algorithms, and metadata.
Recent activity
Decisions
Decision Logs
AI decision lineage records linked to certified artifacts — traceable governance.
Recent activity
Core Certification Infrastructure
Certification
Synthetic Data Certification
Certify a synthetic dataset with SHA-256 fingerprinting and Ed25519 signatures.
AI Artifacts
AI Artifact Certification
Certify datasets, models, and AI outputs with cryptographic proof of provenance.
Verification
Verify AI Artifacts
Cryptographic dataset verification — validate Ed25519 signatures and SHA-256 fingerprints.
Marketplace
Certified Datasets
Browse and download certified synthetic datasets for AI training and analytics.
Verification
Dataset Verification
Confirm a dataset has not been modified since certification.
Verification
Synthetic Data Verification
Verify certified synthetic datasets are unaltered.
Provenance
AI Data Provenance
Cryptographic proof of dataset origin and generation method.
Integrity
Verify Dataset Integrity
SHA-256 fingerprint verification for any certified dataset.
Start with the pages that define the platform
These are the core CertifiedData pages for understanding AI trust infrastructure, AI training data certification, AI artifact verification, and AIBOM.
AI Trust Infrastructure
The master category page tying together verification, provenance, certification, lineage, and governance evidence.
AI Training Data Certification
How training datasets become machine-verifiable artifacts with stronger provenance and governance support.
Synthetic Data Certification
Machine-verifiable certification for synthetic datasets, including fingerprinting, metadata, and signature-backed records.
AI Artifact Registry
The registry layer for certified artifacts, provenance, lineage, and governance evidence.
How AI Artifact Verification Works
The core verification flow: identify the artifact, compare the fingerprint, and validate the signature.
AIBOM
AI Bill of Materials guidance for AI supply chain transparency, governance, and component visibility.
Two entry points, one verifiable trust graph
Start with Datasets or Agent Commerce, then move across Registry, Verify, and Docs / Schemas without losing the deeper authority and trust graph.
Browse certified synthetic datasets, generate new artifacts, and continue into certification, verification, and registry workflows.
Launch policy-governed agent payments with receipts, verification, and protocol reference surfaces already in place.
Inspect the public registry of certified datasets, artifacts, and machine-verifiable trust records.
Validate certificates, fingerprints, and signatures without a platform account or private console.
Open the cross-cutting documentation hub for APIs, schemas, signing keys, and machine-readable discovery.
Explore governance, audit trails, decision lineage, and related authority content without changing the public route graph.
Process
How to certify a synthetic dataset
Certifying a synthetic dataset involves generating the dataset, computing a SHA-256 fingerprint, and creating a signed certificate using Ed25519. This ensures the dataset can be independently verified and trusted in AI systems.
- Generate the dataset (CTGAN, Gaussian, or Light engine)
- Compute a SHA-256 fingerprint of the output
- Issue a certification record with algorithm and timestamp metadata
- Sign the certificate with an Ed25519 key
- Publish for independent verification — no account required
AI Artifacts
Certified AI artifacts
Certified AI artifacts provide verifiable proof that datasets, models, and outputs are authentic and have not been altered. AI artifact certification builds on synthetic data certification to create a complete AI trust infrastructure.
Each certified AI artifact is bound to a SHA-256 fingerprint and an Ed25519 signature — independently verifiable by any party using the published public key.
Explore AI artifact certification →Common questions
See also: Synthetic Data Certification · AI Artifact Verification · AI Artifact Certification
What is certified synthetic data?
Certified synthetic data is synthetic data that includes a cryptographically verifiable certificate proving the dataset was generated synthetically. CertifiedData creates a deterministic fingerprint of the dataset using SHA-256 hashing and signs a certification record with an Ed25519 key. Anyone can independently verify the certificate.
What is synthetic data certification?
Synthetic data certification creates a machine-verifiable record proving how a dataset was generated. A certification artifact contains the dataset fingerprint, generation algorithm, generation timestamp, dataset metadata, and an issuer signature. This allows datasets to be independently validated for compliance, testing, or AI model training.
How do you verify synthetic data?
Verification involves three steps: compute the dataset hash, compare the fingerprint with the published certificate record, and validate the digital signature using the public key at /.well-known/signing-keys.json. This enables public synthetic data verification without trusting the issuing platform.
What is dataset fingerprinting?
Dataset fingerprinting is the process of generating a deterministic SHA-256 hash of a dataset so it can be uniquely identified. CertifiedData uses SHA-256 fingerprinting to create a stable identity for datasets that can be referenced by certificates and verification tools.
What is an AI artifact certificate?
An AI artifact certificate is a cryptographically signed record describing an AI-related artifact such as a dataset, training dataset, model artifact, or AI output. Certificates provide provenance and tamper-evident verification for AI systems, analogous to TLS certificates for websites.
What is AI artifact verification?
AI artifact verification is the process of confirming that an AI artifact — dataset, model, or output — matches a published certificate. CertifiedData's verification endpoint accepts a certificate ID and returns a cryptographic verdict. No account or API key required.
How it works
Three steps. Tamper-evident results. No trust required.
Step 01
Generate
Upload a schema or sample dataset. Our CTGAN engine produces a privacy-safe synthetic replica with no real records.
Step 02
Hash
SHA-256 fingerprints are computed for the ZIP artifact and every inner file (CSV, manifest). Hashes are locked into the certificate at issuance.
Step 03
Sign
The full certificate payload — including all artifact hashes — is signed with an Ed25519 key. Any future modification breaks the signature.
Step 04
Verify
Upload your file at /verify to confirm it matches the certified hash. Or run sha256sum locally and compare. No account required.
Built for auditable AI systems
Whether you're training a model, filing compliance documentation, or shipping test data — AI training data certification adds a verifiable trust layer.
AI Model Training
Prove the data powering your model was synthetically generated and auditable from the start.
EU AI Act Compliance
Article 12 and 19 require training data documentation. Certificates provide machine-readable provenance.
Enterprise Governance
Every generation is logged to a tamper-evident decision ledger with full lineage tracing.
QA & Testing
Ship certified test datasets with your software. Verifiers can confirm the data is synthetic without contacting you.
A certificate is a cryptographic artifact
Not a badge. Not a logo. A structured record signed with Ed25519, containing the SHA-256 hash of your dataset, the generation algorithm, row count, and a verifiable signature chain. Every certified synthetic dataset in the AI artifact registry links to its certificate.
{
"schema_version": "certifieddata.cert.v1",
"certification_id": "uuid",
"timestamp": "2026-03-16T00:00:00Z",
"issuer": "CertifiedData.io",
"dataset_hash": "sha256:a3f8…",
"algorithm": "CTGAN",
"rows": 100000,
"columns": 42,
"signature": "ed25519:…"
}Start certifying today
Free plan includes 5 generation jobs per month. Govern plan includes unlimited certified synthetic datasets and volume pricing.
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