All claims · Carbon registry records
In these 100 issuance and 100 retirement records, no carbon credit was retired twice or beyond what was issued.
Claimed by: A carbon registry auditor. Evidence: 100 issuance and 100 retirement records from the American Carbon Registry, as published in CarbonPlan's OffsetsDB test data, plus any registry report you bring.
Open Climate Risk v1.1.0, CarbonPlan
What software rechecked
Checking in your browser…What a person decided
Checking in your browser…Your verdict, signed in this browser
Checking in your browser…The same checks over whole registries
Do each registry's published records agree with themselves? 532,799 credit rows from 7 registries. Every flagged item is an inconsistency in the published data (may come from OffsetsDB processing or the registry), never a finding of error or wrongdoing. Registries are listed alphabetically by name. They are not ranked or compared with each other.
| Check, and the rule it rests on | ACR | ART TREES | Gold Standard |
|---|---|---|---|
| Project-vintages where retired plus cancelled credits exceed issued creditsICVCM Assessment Framework v3, criterion 6.2 (no double use); one credit per tonne | 0 project-vintages | 0 project-vintages | 3 project-vintages |
| Retirements dated before the first issuance of their project-vintageICVCM CCP A2 (Tracking); definitions of carbon credit and retirement (issue, then track, then retire) | 80 retirements | 0 retirements | 0 retirements |
| Issuances dated before their vintage year startsICVCM Assessment Framework v3, criterion 5.3 (ex-post issuance); definition of vintage | 0 issuances | 0 issuances | 674 issuances |
| Projects whose project-table totals differ from the sum of their credit rowsICVCM CCP A2 (Tracking) and A3 (Transparency) | 0 projects | 0 projects | 0 projects |
Not shown. Cercarbono, Climate Action Reserve, Isometric, Verra are checked by the same code, but their counts stay unpublished while their terms on derived data are unclear. node scripts/run-carbon-scoreboard.mjs computes them for anyone.
Registry data via CarbonPlan OffsetsDB, snapshot 2026-06-01. Terms: https://github.com/carbonplan/offsets-db-data/blob/main/TERMS_OF_DATA_ACCESS