Deposits Data Dictionary (Beta)
Purpose: Represents reported environmental commodities, their volumes, and measurements (e.g., carbon, Scope 3 totals, Low-CI commodities).
Deposit ID
String / UUID
A unique identifier for the Deposit record.
dep_A7KpM6bPQrW2e
Generated by METI, the primary key for the deposit. Globally unique
Secure Source ID
String (FK to Source)
SSID that this Deposit is associated with.
src_83AskOwkQXm6E
Must match a valid SSID.
Commodity → Type
String (enum)
The name/category of the commodity (e.g., “carbon,” “corn,” “beef”).
corn
Constrained to Commodities Catalog
Commodity → Unit
String (enum)
The measurement unit for the commodity (e.g., “ton,” “kg,” “bushel”).
metric ton
Constrained to Unit & Unit Rates Catalog
Commodity → Volume
Decimal / Float
The quantity of the commodity reported.
100.50
Must align with the Unit (e.g., 100.50 metric tons).
Commodity → Date/Time (Harvest/Production Year)
Date/DateTime
The date/time (or year) of the commodity’s production or harvest.
2024 or 2024-05-10T12:00Z
May store a single year or a full date/time, depending on precision needed.
Impact → Type
String (enum)
Category or name of the measured impact (e.g., “GHG,” “Water,” “Biodiversity”).
GHG
Should align with a controlled vocabulary for impact types.
Impact → Unit (or Unit Rate)
String
Measurement unit or ratio for the impact (e.g., “kg CO₂e per ton of product”).
kgCO2e/ton
Constrained to Unit & Unit Rates Catalog
Impact Coefficient → Numerator
Decimal / Float
Numerator portion of the impact rate, if using a rate
0.50
For example, 0.50 kg CO₂e per ton of product
Impact → Volume
Decimal / Float
The quantity of environmental attributes reported.
100
For example, “100 ton of product"
Impact → Method
String
The methodology or standard used for calculating the impact (e.g., “ISO 14064,” “VM0042”).
ISO 14064
Helps identify the reporting or calculation standard.
Impact → Practice/Intervention
String
Brief descriptor for how the commodity was produced or the impact reduced (e.g., “no-till farming”).
no-till farming
Useful for capturing relevant production or mitigation details.
Impact → Date/Time (Measurement Event)
Date/DateTime
The date/time the impact was measured or verified.
2025-03-15T09:00:00Z
Different from commodity production date; specifically for measurement events.
Verification Status
String (enum)
Indicates if the Deposit is Unverified, Self-verified, or Third-Party Verified.
Third-Party Verified
Could be linked to distinct verification states or certificates.
Third-Party Verifier Name & ID
String
Information about the external verifier or auditing agency.
VeriCheck Inc. (ID# 555)
Could be separated into multiple fields (name, ID, accreditation) if needed.
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