For carbon buyers
What exists today, and what does not.
Bhu Carbon is pre-first-issuance. If you are evaluating a removal project with us, this is the short version of what can be diligenced now — and the reporting contract for everything that cannot.
Available now
What you can inspect today.
Measurement protocol
Sampling depths, the analyte panel, immobile-tracer mass balance and the conversion basis.
Read it on /sciencePer-zone interpretation models
Five agro-climatic zones, including the two that are hard cases for us.
Read it on /scienceFeedstock qualification
Lot assay, trace-metal thresholds, and a chained custody record from quarry to spread event.
Read it on /scienceData integrity design
Append-only field and lab records, versioned plot geometry, provenance on every row.
Read it on /science
Measurement · MRV
The chain every removal figure will pass through.
Each step is set out in full, with its sampling depths, analytes and uncertainty treatment, on the measurement method.
Field
Chosen against the zone model before any sample is taken.
Plot geometry
Boundaries are versioned. Every measurement names the geometry in force when it was taken.
Baseline
Georeferenced, multi-depth, before a single tonne of rock. The one step that cannot be recovered later.
Soil sampling
The same plots resampled after application, against their own before-state.
Lab analysis
Total elemental composition, exchange chemistry, bulk density and texture.
Weathering signal
Mobile elements against immobile tracers give depletion directly, without assuming where the rock landed.
Carbon quantification
Concentrations become tonnes per hectare, less the emissions of every operation upstream.
Uncertainty
Propagated through the calculation, not appended to it. A figure without an interval is not a measurement.
Reporting & verification
Registry pathway under evaluation. Independent verification follows first issuance.
Reporting
How a figure will reach you.
Every removal figure will be published as a record, never a bare number. This is the template, empty because nothing has been published into it.
Removal figure — template
- Category (measured, modelled, …)
- —
- Plots included
- —
- Plot geometry version
- —
- Model version
- —
- Sampling depth and sample count
- —
- Period covered
- —
- Uncertainty interval
- —
- Net of operational emissions
- —
Happened, and was checked
- Verified
- A measured figure checked by an independent verifier against a named registry protocol.
- Measured
- From samples taken and analysed on named plots, reported with its uncertainty interval.
Calculated
- Modelled
- Calculated by a named model version from field inputs, not read from the plot’s own samples.
- Estimated
- An approximate figure from partial data, published with the basis it rests on.
Has not happened
- Projected
- What a model expects a planned deployment to remove. Not removal.
- Potential
- A theoretical ceiling for an area or a rock. Not a plan.
- Target
- An intention. Not a result.
Status
Where we stand today
The snapshot, with the working behind each line. The same record on the Science page
- Carbon credits
- Pre-first issuance.
- No credit issued and no removal figure published. When one is, it will name its plots, geometry version, model version and uncertainty interval.
- Registry pathway
- Under evaluation.
- Isometric and Puro.earth have materially different evidence requirements, and the choice shapes the data model, so it is being made deliberately.
- Third-party verification
- Planned alongside the verification pathway.
- Not yet undertaken. Claiming it before first issuance would be meaningless.
- Agronomic outcomes
- Measured before attributed.
- We report soil chemistry, which we measure. No yield figure is attributed to basalt without a trial designed to show it.
In place
Method & protocol
Measurement protocol and per-zone interpretation models written.
Under way
Field deployment
Getting under way.
Ahead
Monitoring
Seasonal resampling against baseline.
Ahead
Data analysis
First removal estimates, with intervals.
Ahead
Verification
Independent, against a registry protocol.
Ahead
Credit issuance
None issued.
Offtake · pre-purchase · diligence