TALLYTRAIL Ledger

Carbon accounting · with a paper trail

TALLYTRAIL

Turn everyday energy bills into emissions you can understand, review, and verify — every number tied to its source.

Every factor sourced · Anchored on Solana devnet

Bill import✦Sourced emission factors✦Scope 1 & Scope 2✦Bill fingerprints✦Human review gate✦Solana devnet receipts✦Offset ledger✦Public verify links✦
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Workspace Overview
PoC · devnet optional
CARBON ACCOUNTING, WITH A PAPER TRAIL

Your impact, made clear.

Turn everyday energy use into emissions you can understand and verify.

A BETTER STARTING POINT

Your bills tell a story.
Let’s make it count.

Bring your energy data. We’ll show the math,
flag the gaps, and keep the evidence together.

Synthetic data · no account or API key needed
Confirmed emissions
0 t CO₂e

Gross emissions · local reports

Scope 1 / Scope 2
0 / 0 kg

Direct fuel / purchased electricity

Confirmed reports
00

0 awaiting human review

Review flags
00

Across draft reports

Build your evidence trail

A few details. A traceable calculation.

01 / 03
Get sample

Enter quantities manually, import JSON, or optionally upload a bill below. Extraction never confirms a report.

Private bill upload & optional extraction

PDF, JPEG, PNG or WebP · one file up to 4 MiB. Copies are stored privately on this machine. Gemini extraction is disabled on this server.

Saved private originals (0)

These files remain available after reloading. Deleting an original preserves existing report fingerprints.

No private originals stored.

Confirm your utility’s eGRID region. ZIP lookup is not implemented.

kWh
therms
Calculation runs locally.

From evidence to confidence

A deliberate checkpoint at every step.

  1. Start with your evidence

    Bill quantities and optional file fingerprint.

    01
  2. Calculate with EPA factors

    Every factor, unit and formula is visible.

    02
  3. Review, then confirm

    Auditor flags stay in the decision trail.

    03
  4. Share a verification receipt

    A reproducible hash, with privacy in mind.

    04

Honest about the chain.

After you confirm a full-calendar-month report, the server can call the Anchor submit_report instruction on Solana devnet when wallet and program env vars are set. Duplicates fail on-chain via the report PDA.

Devnet wiring via env vars

Recent reports

Your numbers, with the evidence attached.

A clean slate.

Analyze your first bill to start building an emissions history.