Audit Trail and E-signatures
Every decision tracked and signed in one audit trail. Proof your auditor can verify.
Every event (an assessment, a confirmed impact, an action, a review) is recorded in a chained log: each line carries the fingerprint of the one before, so any later change shows. Reviews are signed and time-stamped, and the log exports for your auditor.
Swipe to see the full screen
The real activity log screen, on the fictional Meridian group.
What changes
Your week, without and with Obsidian.
Before
Without Obsidian
- Evidence scattered across emails and folders
- Verbal approvals, with no record at all
- An audit prepared in a rush, for weeks on end
After
With Obsidian
- One single log of every decision
- Signed, time-stamped reviews
- An export ready for your auditor
The benefits
What you gain, in concrete terms.
9c41e07b2d5af3e81c6b0a9401Log
Nothing gets erased
Each line of the log carries the fingerprint of the one before: any later change shows immediately.
Chained logA. Martin · 15 October 2026, 14:32
02Signature
A signature that counts
Signing requires re-authentication and records the name, the date and time, the meaning and the fingerprint of the signed version.
Review and signature03Export
Audit-ready, without the rush
The log exports for any period you choose. Your auditor gets evidence, not explanations.
Log exportIn your industry
A real case, step by step.
Pick your industry: the example follows, with a real official publication and the fictional Meridian group.
Digital omnibus on AI: final green light from the Council
Effective date- The eventImpact confirmed: AI Act, Regulation (EU) 2024/1689
For Meridian Netherlands B.V.
- The signatureSanne de Vos · signed review
Re-authentication, UTC date and time, meaning of the signature.
- The proofLine recorded in the chained log
Exportable for the auditor, any change shows.
FDA2 February 2026Medical devices: the FDA's QMSR takes effect
Effective date- The eventImpact confirmed: Quality Management System Regulation, 21 CFR Part 820
For Meridian America Inc.
- The signatureDavid Brenner · signed review
Re-authentication, UTC date and time, meaning of the signature.
- The proofLine recorded in the chained log
Exportable for the auditor, any change shows.
EPA14 October 2026Trichloroethylene: the EPA proposes to extend certain compliance dates
Deadline- The eventImpact confirmed: TSCA rule on trichloroethylene (40 CFR 751)
For Meridian America Inc.
- The signatureDavid Brenner · signed review
Re-authentication, UTC date and time, meaning of the signature.
- The proofLine recorded in the chained log
Exportable for the auditor, any change shows.
European Commission21 September 2026ESRS: revised Set 1 published in the Official Journal
Effective date- The eventImpact confirmed: European Sustainability Reporting Standards (ESRS), Set 1
For Meridian Netherlands B.V.
- The signatureSanne de Vos · signed review
Re-authentication, UTC date and time, meaning of the signature.
- The proofLine recorded in the chained log
Exportable for the auditor, any change shows.
SEC21 September 2026Proxy rules: the SEC proposes to modernize its rules and repeal Rule 14a-8
Consultation- The eventImpact confirmed: SEC proxy rules (17 CFR 240)
For Meridian America Inc.
- The signatureDavid Brenner · signed review
Re-authentication, UTC date and time, meaning of the signature.
- The proofLine recorded in the chained log
Exportable for the auditor, any change shows.
CFTC13 October 2026Crypto assets: the CFTC publishes an advance notice on two future rules
Consultation- The eventImpact confirmed: CFTC rules on crypto asset transactions and markets (17 CFR Parts 1, 38 and 39)
For Meridian America Inc.
- The signatureDavid Brenner · signed review
Re-authentication, UTC date and time, meaning of the signature.
- The proofLine recorded in the chained log
Exportable for the auditor, any change shows.
How it works
The result: a signed, time-stamped, verifiable review.
1The signed review
The name, the date and time, the meaning of the signature and the fingerprint of the version.
Real app screen, on the fictional Meridian group.
What comes next
One platform, modules that work together.
Align the 2026 sustainability statement with the revised ESRS
An owner, a deadline, the proof
Explore the module ConnectIntegrations
Teams, Slack, Jira, ServiceNow, Outlook
Explore the module DecideRegulatory Impact AssessmentThe impact on every entity, already assessed
Explore the moduleFrequently asked questions
Your questions, our answers.
Obsidian Audit Trail records every compliance decision in a chained, tamper-evident log, with signed and time-stamped reviews and an export ready for auditors.
What is a chained log?
Each event is linked to the previous one by a fingerprint: any later change shows.
Who can sign?
The people the review is assigned to; signing requires re-authentication.
What does a signature contain?
The name, the date and time (UTC), the meaning of the signature and the fingerprint of the signed version.
Can I export the log?
Yes, for the period of your choice, ready to hand to your auditor.