Public · Ed25519-signed · Hash-chained

Decision Log

The public record of AI decisions made against CertifiedData certified artifacts. Each entry is cryptographically signed, appended to an append-only log, and independently verifiable without an account.

This page shows decisions logged with public_mode=true. Private records are not published. Machine-readable: GET /api/decision-log

How decision records reach this log

Step 1

Artifact certified

A dataset or AI artifact is cryptographically certified and registered in the artifact registry.

Step 2

Artifact used

A model or workflow consumes the certified artifact to produce a decision or output.

Step 3

Decision logged

The operator logs the decision via POST /v1/decisions, optionally referencing the certificate ID.

Step 4

Published here

Records with public_mode=true are Ed25519-signed, chain-linked, and appear in this log.

Live public records· showing 1–25 of 6,170

Decision	Outcome	Certificate	Integrity	Chain hash	Timestamp
anomaly detection f9839e2e-75b4-4e60-b2f5-fcecfcccaa0f metrics_within_baselinelatency_spike_detectedno_statistical_outliers	NORMAL Anomaly detected: metric deviation exceeds 3-sigma threshold from 30-day baseline.	—	✓ verified	2f01fb8f1ec9659e…	Jul 12, 2026, 03:41 PM UTC
credit risk assessment 9e90a3bc-b022-4550-b878-458891e36b00 income_verifiedcredit_history_positive	DECLINED Conditional approval issued pending income verification documentation.	—	✓ verified	d10f20bf5904de8a…	Jul 12, 2026, 03:41 PM UTC
churn risk assessment 88cacb03-969c-49bc-a2e7-538d6c37388c engagement_decliningengagement_stablerecent_product_usage_high	HIGH RISK High churn risk detected. Engagement declining and support escalations noted.	—	✓ verified	2128d880db176500…	Jul 12, 2026, 03:41 PM UTC
content moderation 994dc0e2-c146-49df-aeca-508cbbadc37e violates_harassment_policyconfidence_above_threshold	ALLOWED Context-aware analysis completed. No action required.	—	✓ verified	61c4865e4f93df2e…	Jul 12, 2026, 03:41 PM UTC
dataset certified b07b9ac7-d3f7-449d-a914-1d19a772fb86 schema_validatedno_pii_detectedrow_count_within_limits	ISSUED Free-tier certification issued. Certificate anchored in public registry.	⬡5815f7b8-da5…	✓ verified	c07f8f7ef7aa4821…	Jul 12, 2026, 03:41 PM UTC
dataset certified 0b61617a-7b9b-44e9-aaaf-0f694a1ba9f6 hash_verifiedrow_count_within_limitsschema_validated	ISSUED Dataset certified under free tier public transparency policy.	⬡5815f7b8-da5…	✓ verified	94efcbe694493b57…	Jul 12, 2026, 03:41 PM UTC
dataset certified 9ad1f9cc-fe04-4981-aa59-cf10a33263f1 pro_tier_certification	ISSUED Dataset certified: 1,000 row clinical_trials artifact.	⬡6c5047f5-75d…	✓ verified	bc39503dc2c94f18…	Jul 12, 2026, 03:13 PM UTC
dataset generated 9345ca22-93c0-4cd1-a08f-516678741957 synthetic_generation_completed	completed Synthetic dataset generated: 1,000 rows via gaussian engine (clinical_trials).	⬡6c5047f5-75d…	✓ verified	18b8b2d913d04b7d…	Jul 12, 2026, 03:13 PM UTC
dataset certified 9db2c1fc-5b46-4f1f-8b2b-fa8d920abfaf pro_tier_certification	ISSUED Dataset certified: 2,500 row insurance_risk artifact.	⬡01a24263-a83…	✓ verified	9f663a9bce1f336e…	Jul 12, 2026, 03:13 PM UTC
dataset generated 274819b6-d417-4b2c-9985-b45779825612 synthetic_generation_completed	completed Synthetic dataset generated: 2,500 rows via gaussian engine (insurance_risk).	⬡01a24263-a83…	✓ verified	590f0bcfd5d3d16e…	Jul 12, 2026, 03:13 PM UTC
dataset certified 1278c0f7-71cd-44db-b564-44bf645fbeea team_tier_certification	ISSUED Dataset certified: 100,000 row insurance_risk artifact.	⬡0cc655c4-909…	✓ verified	fe951210f61570f2…	Jul 12, 2026, 03:13 PM UTC
dataset generated 4d7b1f82-378f-4d1f-8fc0-a6f2a6eb8cec synthetic_generation_completed	completed Synthetic dataset generated: 100,000 rows via ctgan engine (insurance_risk).	⬡0cc655c4-909…	✓ verified	625eff6be8855a57…	Jul 12, 2026, 03:13 PM UTC
dataset certified ba006567-6117-4aa0-801e-959dfd04afa0 enterprise_auto_certified	ISSUED Dataset certified: 2,500 row customer_demographics artifact.	⬡9d897202-13a…	✓ verified	c0b312b1691c2d2f…	Jul 12, 2026, 03:13 PM UTC
dataset generated e9283a41-fa28-40ae-ab50-452ba138fc35 synthetic_generation_completed	completed Synthetic dataset generated: 2,500 rows via gaussian engine (customer_demographics).	⬡9d897202-13a…	✓ verified	bd002045d8dc5766…	Jul 12, 2026, 03:13 PM UTC
dataset certified b8b866de-e3d5-4c9f-a988-de5b74ff2b54 free_tier_auto_certified	ISSUED Dataset certified: 5,000 row healthcare_claims artifact.	⬡904789e8-935…	✓ verified	6b3519bacd3d4d4e…	Jul 12, 2026, 03:13 PM UTC
dataset generated da936d05-1ded-433a-b079-c429076503dc synthetic_generation_completed	completed Synthetic dataset generated: 5,000 rows via light engine (healthcare_claims).	⬡904789e8-935…	✓ verified	267bf91801bb9f37…	Jul 12, 2026, 03:13 PM UTC
credit risk assessment ac217fc5-ad7c-45e3-baae-f8e517e591ea payment_history_cleanincome_verifieddebt_ratio_within_threshold	CONDITIONAL APPROVAL Referred to manual review: borderline risk score requires human judgment.	—	✓ verified	c9e5ac6e8539e434…	Jul 12, 2026, 10:42 AM UTC
insurance claim c267ef31-8f94-4813-ac9b-93e90df9d665 duplicate_claim_detectedpre_auth_on_fileservice_date_valid	APPROVED Claim routed for investigation: anomaly detected in documentation pattern.	—	✓ verified	723cdb888ffbaa46…	Jul 12, 2026, 10:42 AM UTC
dataset generated aaea1d02-aa97-467f-b348-8e6e705a8130 synthetic_generation_completed	completed Synthetic dataset generated: 500 rows via light engine (healthcare_claims).	—	✓ verified	1b603c9d8c6b53c7…	Jul 12, 2026, 08:44 AM UTC
dataset generated a0c1bcb7-a001-4c20-9a4a-a2fafa7f184b synthetic_generation_completed	completed Synthetic dataset generated: 100,000 rows via gaussian engine (loan_applications).	—	✓ verified	e439a23490067c9f…	Jul 12, 2026, 08:44 AM UTC
dataset generated f91d7a0a-8a84-450b-875d-4c170b775dfa synthetic_generation_completed	completed Synthetic dataset generated: 50,000 rows via gaussian engine (ecommerce_orders).	—	✓ verified	c9ff496aa2df3b5b…	Jul 12, 2026, 08:44 AM UTC
dataset generated 3f355409-fc4b-4b7f-8900-3012705453e2 synthetic_generation_completed	completed Synthetic dataset generated: 1,000 rows via light engine (clinical_trials).	—	✓ verified	6f1cdcbd629c99ba…	Jul 12, 2026, 08:44 AM UTC
dataset certified 8ddd97c1-3c4d-4c39-b736-3b67b2e8bdc3 enterprise_auto_certified	ISSUED Dataset certified: 2,500 row employee_records artifact.	⬡433d9ffa-318…	✓ verified	a6c05e1a76ef2411…	Jul 12, 2026, 04:06 AM UTC
dataset generated efcc0479-a851-4dfd-b06b-1bb482375125 synthetic_generation_completed	completed Synthetic dataset generated: 2,500 rows via gaussian engine (employee_records).	⬡433d9ffa-318…	✓ verified	5ee85bccac4c25b3…	Jul 12, 2026, 04:06 AM UTC
dataset generated cce28644-d81f-46eb-b2b0-ecb100feee58 synthetic_generation_completed	completed Synthetic dataset generated: 100,000 rows via light engine (healthcare_claims).	—	✓ verified	2d7d797cbbe9bbb0…	Jul 12, 2026, 04:06 AM UTC

Entries 1–25

Record structure and API

Public API endpoints

GET /api/decision-log

?limit=25&offset=0

GET /api/decision-log/latest

GET /api/decision-log/:id

GET /api/decision-log/:id/verify

GET /.well-known/decision-signing-keys.json

Response fields (public records)

decision_id — unique identifier

decision_label — event type

selected_option — outcome

certificate_id — linked artifact (optional)

public_hash — SHA-256 of this record

previous_public_hash — chain link

signature_alg — Ed25519

integrity_status — verified | pending

timestamp — ISO 8601

Integrity model

Each public record is signed with Ed25519 using the key identified in /.well-known/decision-signing-keys.json.

The previous_public_hash field links each record to the prior entry. Any modification to a prior record changes its hash and breaks the chain.

Signature verification is available at /api/decision-log/:id/verify without authentication.

Current implementation scope

Public decision records are available via the API and on this page. Records are optionally linked to certified artifact IDs.

Ed25519 signing and SHA-256 chain linking are active for all public records. The /verify endpoint performs live signature checks.

Only records explicitly submitted with public_mode=true appear here. Private records are not published.

Log a decision

Use POST /v1/decisions with an authenticated API key. Set public_mode: true to publish the record to this log. Reference a certificate_id to link the decision to a certified artifact.

POST /v1/decisions
Authorization: Bearer <api_key>

{
  "decision_label": "loan_approved",
  "selected_option": "approved",
  "public_mode": true,
  "artifact_reference": {
    "certificate_id": "cert_01j9k..."
  }
}

Questions

What is a decision record?

A decision record is a structured log entry that captures an AI system action: the decision label, selected outcome, input context, model version, policy version, and timestamp. Records submitted with public_mode=true are signed with Ed25519, assigned a SHA-256 hash, and appended to this public log.

How is the decision log different from the artifact registry?

The artifact registry records certified datasets and AI artifacts — what was built and signed. The decision log records how those artifacts were used downstream — decisions made by systems that consumed certified data. Certification is about provenance; decision logging is about use.

How does decision lineage connect to artifact certification?

Each decision record can reference a certificate_id, linking the decision to the specific certified artifact used. This creates a traceable chain: certified dataset → model trained on it → decision made by that model. The chain allows auditors to follow a decision backwards to its data origin.

Can decision records be independently verified?

Each record includes an Ed25519 signature and a chain hash linking it to the prior entry. The signing public key is available at /.well-known/decision-signing-keys.json. Any party with the record payload and the public key can verify the signature without contacting CertifiedData.

Are all AI system decisions published here?

No. Only decisions logged via POST /v1/decisions with public_mode=true appear in this log. Private decision records are retained but not published. Operators choose what to make public at the record level.

Why does decision logging matter for governance?

AI governance requires verifiable evidence of how systems behave — not just what data they were trained on. Decision logs provide timestamped, cryptographically signed records of individual AI actions, satisfying audit and traceability requirements for frameworks like the EU AI Act (Articles 12 and 19).

AI Decision Logging

What decision logging is, how it supports EU AI Act compliance, and how it differs from general audit logs.

AI Decision Lineage

The traceable chain from certified dataset to model to downstream decisions — and why it matters for governance.

Artifact Registry

The public index of certified AI artifacts. Decision records can reference any registry entry by certificate ID.

Transparency Log

Browse the append-only public audit trail for certificates, datasets, and decision records in one place.

Verify a Certificate

Independently verify any artifact certificate using its SHA-256 fingerprint and Ed25519 signature.

Verification Docs

How to programmatically verify certificates and decision records using standard cryptography libraries.

Synthetic Data Certification

Certify the synthetic datasets referenced in decision records. Each certificate ID links a decision to its verified artifact.

Payment Decision Log

AI agent spend authorization decisions — every payment authorized, blocked, or escalated, with policy hash and reason codes.