2. Also, Draft text wrt to adding informative appedendix for - TPI-R to 27560 Universal Receipt profile v1 (for Convention 108 + code of conduct) with how they relate to assurance levels, now called Transparency and Trust Assurance (TATA) Levels, (needed to clarify in relation to digit trust.)
**Status**: INFORMATIVE — This appendix does not affect conformance to the Universal Notice Receipt Profile v1.0
### L.1 Purpose
TPI-R (Transparency Performance Indicator Report) provides standardized methodology for verifying Universal Notice Receipt Profile implementation through four measurable indicators.
### L.2 Four Transparency Performance Indicators
**TPI-1 (Timing)**: Controller-ID presented BEFORE processing
- **Maps to**: Section 5.3 Anonymous-by-Default Architecture
- **Verification**: CIR publication timestamp vs. first processing event
**TPI-2 (Completeness)**: All mandatory CIR fields populated
- **Maps to**: Section 7.1 Mandatory Conformance Requirements
- **Verification**: ISO/IEC 27560:2025 field completeness check
**TPI-3 (Accessibility)**: Rights access point operational
- **Maps to**: Section 5.4 Controller Identification Record
- **Verification**: rights_access_point endpoint response time, Notice Event Log queryability
**TPI-4 (Security & Sovereignty)**: Scope of disclosure alignment with processing location
- **Maps to**: Section 6.1.2 Cross-Border Transfer Fields
- **Verification**: recipient_jurisdictions vs. actual processing locations, surveillance_risks disclosure accuracy
### L.3 TPI-R Scoring
- Each indicator scores: -1 (non-compliant), 0 (partial), +1 (compliant)
- Universal Notice Receipt Conformance requires: TPI-1 = +1, TPI-2 = +1, TPI-3 ≥ 0, TPI-4 ≥ 0
- Full compliance (all four +1) demonstrates transparency-by-default operational state
### L.4 Relationship to Conformance Levels
- **TATA Level 1** (Self-Assertion): TPI-R optional
- **TATA Level 2** (Registry Verification): TPI-R score ≥ 60% (3 of 4 indicators positive)
- **TATA Level 3+**: TPI-R score ≥ 75%+ with third-party audit
### L.5 Reference Implementation
See Kantara Initiative ANCR TPI-R Specification (Recommendation, August 2025) for complete assessment methodology.