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Methodology·v4 — awaiting sign-offEngine·v0.3Emission factors·DEFRA UK GHG 2024Last sign-off·22 Apr 2026Audit chain·✓ verified
Reports

Pawston Cat Foods Ltd

All Hemera reports are human-checked and signed by credentialed analysts before release. Standard turnaround: 48 hours.

DRAFT
Methodology report

The audit-grade GHG inventory artefact. Analyst-signed, version-pinned, reproducible. Every figure carries a calculation trace linking back to source records.

Draft v4 · ready for analyst release · target release Tue 30 Apr
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Version history
4 versions · v4 current
  • v1Apr 2026

    Initial FY2024 draft — pre-supplier-engagement

  • v2Apr 2026

    Hartmoor Dairy primary data added · −510 tCO₂e (supplier outreach: Olamide Adeyemi)

  • v3Apr 2026

    Octopus market-based Scope 2 factor swap · −120 tCO₂e

  • v4Apr 2026current

    Pedigree audit (4 spend lines reclassified) + methodology v2 recalculation (methodology review: Aanya Kapoor)

Every version is immutable. New versions supersede prior ones — prior artefacts remain downloadable for any audit reaching back to the date they were signed.
Marquee artefact · third-party verifiable

Audit pack

Locked-format ZIP for third-party verification. Bundles every input, every emission factor, every override, and a SHA-256-pinned manifest. Run on any machine, no Hemera servers required — your auditor doesn't need an account.

Download audit pack ZIP
audit_pack_2087_v1_3a4f2b89.zip · 247 KB
~/Downloads $
$ python verify_pack.py audit_pack_FY2024.zip
✓ Manifest OK · hash chain verified · 247 events · 51 records
Run on any machine · no Hemera servers required
$ echo $?
0

The pack is independently verifiable — the bundled verify_pack.py uses Python 3 stdlib only (no pip install). It re-computes SHA-256 hashes for every file, compares against the manifest, and exits 0 with a green ✓ on success.

View manifest · 10 files in pack
Pack root
  • ├──manifest.json4 KBLocked-format index + expected SHA-256 of every file + expected_hash_of_inputs
  • ├──methodology_report.json62 KBThe MethodologyReportV1 payload — every figure with calculation_trace
  • ├──methodology_report.pdf128 KBRendered methodology report, analyst-signed
  • ├──input_snapshot.json38 KBCanonical input set used to compute hash_of_inputs (deterministic encoding)
  • ├──overrides.json2 KBActive analyst overrides at publish time
  • ├──boundary_decisions.json1 KBActive boundary decisions (consolidation approach + rationale)
  • ├──emission_factors.json9 KBCited emission factors (DEFRA UK 2024 v1, version-pinned)
  • ├──audit_chain.json18 KBHash-chained audit log — 2,341 events
  • ├──version_pins.json0.5 KBMethodology / engine / template version strings
  • └──verify_pack.py4 KBOffline replay script (Python 3 stdlib only — no pip install)
DRAFT
Carbon footprint report

Headline GHG inventory: total tCO₂e, scope split, top sources, year-on-year delta. Cross-references the methodology report for calculation evidence.

Signed v4 · 22 Apr 2026 · Nico Henry, TACA
Open
Latest
v4Apr 2026
Cross-references methodology v4
DRAFT
Supplier intelligence report

HemeraScope: coverage, engagement state, top suppliers by emissions, primary-data uplift, and recommendations. Updates as suppliers engage.

Signed v4 · 22 Apr 2026 · Nico Henry, TACA
Open
Latest
v4Apr 2026
Cross-references methodology v4
DRAFT
Data quality report

Pedigree score per record, tier breakdown, coverage by source. The improvement roadmap with estimated uncertainty reduction per action.

Signed v3 · 22 Apr 2026 · Nico Henry, TACA
·27% primary data
Open
Methodology report — quality checklist
46 of 51 items complete·TACA standard
CompleteIn progressNot started
DRAFT
Reduction recommendations

Ranked actions with estimated emissions saving, cost band, and recommended owner role. Each recommendation can be converted to a task with one click — see the Tasks page for the active workflow. Auto-generated from hotspot analysis.

Signed v2 · 18 Apr 2026 · Nico Henry, TACA
·12 recommendations·View recommendations as tasks →
Open
DRAFT
Board-ready PPT

10-slide executive deck — hero number, scope split, top hotspots, trajectory, headline reductions, recommendations. Branded for board / investor use.

Signed v4 · 22 Apr 2026 · Nico Henry, TACA
·10 slides · 4.8 MB
Open
Slide manifest
pawston_board_deck_FY2024_v4.pptx·4.8 MB
  1. 01Hero number · 12,847 tCO₂e
  2. 02Scope split · 1 / 2 / 3
  3. 03Top 5 hotspots
  4. 04Trajectory · BAU vs SBTi
  5. 05Year-on-year delta
  6. 06Headline reductions delivered
  7. 07Supplier engagement progress
  8. 08Top recommendations · ranked
  9. 09Data quality journey
  10. 10Next 90 days · committed actions
DRAFT
Excel companion

Five-sheet workbook for offline review. Summary, transactions, emission factors, assumptions and overrides, QA decisions.

Signed v4 · 22 Apr 2026 · Nico Henry, TACA
Open
Lead analyst
Nico Henry
your lead analyst
·
your lead analyst
Sign-off accountability — every published artefact carries this analyst's credential snapshot at the moment of publish.

Every published artefact is immutable once signed off — corrections create a new version that supersedes the old. The audit pack carries the full input snapshot and a verifier script that runs offline.