DraftVerify Standards Library · F-31

Audit Log & Traceability Framework

F-31 defines the audit logging and traceability requirements for all identity objects, verification events, and system interactions governed by the DraftVerify Standard.

The audit log is the single source of truth for:

identity changes
verification activity
distribution and venue handling
product switching
activation history
compliance events
mis-serve investigations

It enables full lifecycle reconstruction of every NA draft keg, coupler tag, and line configuration.

1. Purpose of the Audit Log

The Audit Log Framework ensures:

Every identity object has complete historical records
All verification events are captured and timestamped
No data can be altered without trace
Operators, auditors, and investigators can reconstruct events
Compliance programs (F-33) have reliable evidence
Breweries, distributors, and venues maintain accountability

2. Scope

This framework applies to:

All DraftVerify identity objects (DTI, Line Tag, Faucet ID)
All verification events (VX-Series)
All activation events (F-12 / F-13)
All distributor and venue scans (F-15, F-18, F-19)
All audit and inspection activity (F-37)
All incident responses (F-22)

The audit log includes:

Immutable entries
Append-only record structure
Full timestamping (UTC)
Object, actor, and system metadata

3. Audit Log Structure

Every entry must contain:

Field	Description
timestamp_utc	ISO-8601 UTC timestamp of event
event_type	Activation, Scan, Transfer, Delivery, Tap, Audit, Incident, Finalization
dti	DraftVerify Tag ID (if applicable)
object_type	Keg, Coupler Tag, Line, Faucet, Brewery Record, Distributor Record
object_id	Internal registry object identifier
actor_type	Brewery, Distributor, Venue, DraftVerify System
actor_id	ID of brewery, distributor, or venue user
location	Optional coarse geolocation
status_code	Success, Warning, Error
details	Freeform event metadata

Audit entries may never be overwritten, deleted, or merged.

4. Event Types (Standardized)

4.1 Activation Events

Created during brewery-side initialization:

Tag serialized (F-12)
Tag activated (F-13)
Product & batch assignment

4.2 Verification Events

Generated during NFC scans:

Brewery scan
Distributor receiving scan
Distributor delivery scan
Venue pre-tap scan
Audit verification scan

4.3 Transfer Events

Used for:

Brewery → Distributor handoff
Distributor → Venue handoff
Multi-venue internal transfers (F-34)

4.4 Incident Events

Triggered by:

Failed verification
Tag mismatch
Suspicious tampering
Mis-serve or near-miss (F-22)

4.5 System Events

Logged by the DraftVerify registry:

Status changes
Invalid attempts
System flags
Automated checks

5. Traceability Model

Each DTI must support full, chronological reconstruction of its lifecycle:

Activation → Brewery Scan → Transfer to Distributor → Distributor Scan →
Delivery → Venue Scan → Tapping → Audits → Finalization

Traceability requires:

Zero missing records
Zero overwritten entries
Clear, timestamped routing
Object identity consistency
Full chain-of-custody visibility

This ensures that every keg’s journey is provable, auditable, and immutable.

6. Data Retention Requirements

Minimum retention period: 5 years from product finalization.

Retention applies to:

All audit entries
All verification events
All identity object records
All incident and resolution files

Extended retention (10+ years) recommended for:

Mis-serve events
Legal or regulatory inquiries
Insurance or liability claims

7. Corrective Actions & Audit Flags

The system must automatically flag:

Repeated scan failures
Mismatched DTI-product pairings
Inactive tag used in workflow
Missing verification steps
Out-of-sequence lifecycle events

When flagged:

Object enters Review status
Distributor and brewery are notified
Auditor may require secondary inspection

8. Integration With Other Standards

F-31 is referenced by:

F-22 — Incident Response Procedure
F-33 — Compliance Audit Framework
F-37 — Field Audit Handbook
F-28 — Registry Specification
F-29 — Tag Activation Rules
F-30 — Verification Event Specification

The audit log is the evidentiary layer for all compliance and safety programs.

9. Summary

F-31 provides the backbone of DraftVerify’s trust and accountability model:

Immutable audit records
End-to-end traceability
Full lifecycle reconstruction
Strong compliance foundation
Clear chain-of-custody documentation
Documented responsibility at every step

This framework ensures DraftVerify remains a reliable, defensible, and auditable identity standard for NA draft service worldwide.