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EOM Carbon Data Dictionary

Every field Emsurge captures across the Emstream market-data feed and the carbon project record — with its provenance and whether it is available programmatically over the API.

Primary — captured & owned by Emsurge Curated — pre-filled from registry, allied & reference sources (CORSIA / ICAO, ICVCM / CCP, Article 6 disclosures), Emsurge-reviewed & editable Registry — sourced directly from registry feeds

Carbon market data & project specification · Revised 26 June 2026

Emsurge primary data — the live market

The data Emsurge owns outright is the order book itself: every bid, ask and transaction on the Emstream Venue, with its price, volume, vintage and timestamp. Live indicative prices and liquidity like this are not published by any registry. A few project-level fields are also Emsurge's own; everything else in this dictionary is curated — pre-filled from registry, CORSIA / ICAO, ICVCM / CCP and Article 6 sources, then reviewed and kept current by Emsurge.

Live bids / asks / transactions Indicative prices & volume Project short name Monitoring (dMRV) Article 6 status explanation

Section 1

1Market Data Feed · Emstream

Each record is a bid, ask or transaction on the Emstream Venue. Delivered as JSON Lines via the data API. Project attributes (standard, sectors, eligibility…) are copied onto every order from the project record in Section 2.

FieldSampleFormatAPIDescription
TypeAskTextYesTypeType of data point: Bid / Ask / Transaction.
IDfa4c8932-5AlphanumericYesIdTrade ID.
VenueEmstreamTextYesVenueVenue of the data point.
Timestamp08/25/2023 03:51:30 PMDatetimeYesTimestampmm/dd/yyyy hh:mm:ss PM.
Carbon StandardsVCSTextYesCarbonStandardStandard code: VCS (Verra), GS Gold Standard, ACR, ART (REDD+), CAR, CDM, CERC Cercarbono, GCC, JNR, PURO, VIVO Plan Vivo.
PIDVCS 439AlphanumericYesPIDProject identifier (project’s ID at its registry).
CountryChinaTextYesCountryCountry in which the project is located.
VintageV2008-2009AlphanumericYesVintageVintage, YYYY-YYYY.
Volume50,000NumericYesVolumeVolume in tonnes of CO2 equivalent (tCO2e).
Price$0.650NumericYesPricePrice per credit in USD $X.XXX, EUR or GBP / tCO2e.
CertificationsAlphanumericYesCertificationsMay be blank or hold more than one code — see Section 2.
Programme EligibilitiesCP1 LabelledTextYesProgramEligibilitiesProgrammes the credits qualify for — full set in Section 2. Incl. CP1 Labelled / Eligible / Aligned, CORSIA Pilot, Article 6.2 / 6.4, CCP.
SectorsChemical IndustryTextYesSectorsProject sector(s) — full hierarchy in Section 2.
Top SectorsChemical IndustryTextYesTopSectorsHighest-level parent sector(s) of the above.
MethodologyAM0001 — Decomposition of fluoroform…AlphanumericYesMethodologyMethodology framework reference and text.
AuthorTextWhere available, named project author / developer.
Type (transaction)SpotTextYesOrderSubTypeTransaction type: Spot, Forward.
SubTypeSpecificTextTransaction sub-type (e.g. Specific).

Also delivered in the feed (beyond the dictionary fields)

CountryIso3166Alpha2Code, Currency (ISO 4217), PriceDirection (move vs. previous price, with prior value & time), OrderType (Market / Limit) and Validity. The feed currently covers the Carbon product only; REC, LNG and Biodiversity feeds are not yet generated.

Section 2

2Project Specification & Attributes

The carbon project record. The Source column shows each field's provenance; “In feed” shows whether it is also emitted on Section 1 market-data records today.

FieldValues & optionsSourceIn feed (API)
Classification & specification
Nature-Based ClassificationNature Based SolutionsNon-NBSAll  single select. Derived from sector; also classified by allied data providers.Curated
Removals / ReductionRemovalsReductionRemovals & Reduction  whether the project removes or reduces emissions. Derived from methodology; also published by rating providers.Curated
Project MethodologyStandardised framework code — 400+ values incl. VCS VM0007, CDM AM0001, ACM, Gold Standard, ARR… plus Not provided / Other.CuratedYes
Project StateFinalisedPlanned  is issuance finalised or planned — from the registry's project status.Curated
Project Short NameFree text nickname for the project.Primary
Registry URLLink to the project’s registry page (incl. https://).Curated
SectorsHierarchical. Top level: AFOLU (ARR, Agriculture, Avoided Deforestation, Blue Carbon → Mangroves / Wetlands / Seagrass / Seaweeds, Improved Forestry Mgmt, REDD+, Soil Carbon), Chemical Industry (N₂O Abatement), Construction, Energy Demand (Cookstoves, Water Purifiers), Energy Distribution, Energy Industries (Non-renewable: Biomass, Gas CCGT / Renewables: Hydro ≥20MW, Small Hydro <20MW, Solar, Wind / Solar Cookers), Fugitive Emissions (Fuels; Halocarbons & SF₆), Manufacturing, Mining / Mineral, Solvents Use, Tech Removals (Biochar, CCS, DAC, Enhanced Weathering), Transport, Waste Handling (Biogas, LFG).CuratedYes
Storage TypeGeologicalBiologicalWithin ProductsAnyNone  standard CDR storage taxonomy; derived from method.Curated
Additional attributes
CertificationsCCBSD VIStaBiodiversityAbacus + free-text Other.CuratedYes
Monitoring MethodsdMRV  Digital Measurement, Reporting & Verification — captured by Emsurge; no per-project registry field.Primary
Sustainable Development GoalsMulti-select of UN SDGs 1–17 (No Poverty … Partnerships for the Goals).Curated
SDG CertifiedYes / No — whether SDG contributions are independently certified.Curated
SDG ExplanationsNarrative of community benefits per goal — drawn from project documentation.Curated
Programme eligibility & Article 6
Programme EligibilityArticle 6.2Article 6.4CCPChina ETSCORSIA PilotCP1 EligibleCP1 LabelledCP1 AlignedSGP Tax + Other. CP1 = CORSIA Phase 1 (ICAO); CCP = Core Carbon Principles (ICVCM).CuratedYes
Standardised Product EligibilityCP1 ICEGEONGEO  eligibility for standardised/exchange products — criteria set by CME Group / Xpansiv (CBL).Curated
Article 6 StatusMOULOILOACA Label  corresponding-adjustment / authorisation status — published via UNFCCC & host countries.Curated
Article 6 Status ExplanationFree text — Emsurge's explanation where the project is pursuing Article 6.Primary
LOA LinksList of URLs to Letters of Authorisation — published documents (UNFCCC portal, host-country sites, registries).Curated
Article 6 Authorised Use CaseNDC useInternational Mitigation Purposes (CORSIA)Other Purposes (Voluntary)  stated in the authorisation.Curated

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