Can your MRV reading be re-checked later? Signed.
Offset integrity disputes and greenwashing challenges turn on the same question: can the underlying reading behind the claim be independently re-verified later, or does it live only in a spreadsheet the claimant controls? Measurement, reporting and verification files are built on many datapoints, and each one is only as strong as its ability to be checked again. A signed, independently re-verifiable datapoint, carrying its source attribution and its observation time, gives an MRV file a spine. This page issues one right now, pairing a national emissions figure with a live grid carbon-intensity reading.
A signed carbon datapoint, right now.
Pick a country for the national greenhouse-gas inventory figure and a grid region for the live carbon intensity. Dynamic Feed records both as observed evidence and returns one Ed25519-signed Decision Receipt produced by /v1/answer, with full source attribution. Nothing is mocked and nothing is stored about you.
full signed receipt (JSON)
Carbon claims are challenged on records.
When an offset's integrity is questioned, or a corporate emissions claim is challenged as greenwashing, the fight is rarely about the headline number; it is about whether the reading behind it can be reproduced by someone who is not the claimant. Self-reported figures in a proprietary spreadsheet do not survive scrutiny, and public dashboards get restated after the fact. A contemporaneous datapoint from an independent witness, signed at the moment, carrying its source and observation time, and verifiable years later against a published key, is the kind of corroboration a reviewer can actually check. Our records work against the claim just as well as they work for it: anyone can re-verify them, including the challenger.
We witness data, we do not certify offsets.
Dynamic Feed is a neutral witness, not a registry, auditor, validation body or adviser. We do not certify offsets and do not verify projects; we record what a named public source reported and sign it. Emissions figures are Climate TRACE's own modelled national inventory and Australian grid intensity is derived from AEMO dispatch data and honestly flagged as such in the receipt, not an official measurement. This is a live-now datapoint, not a reconstruction of a past reporting period, and public national inventories lag by one to two years. It does not quantify a project's abatement, does not confirm additionality or permanence, and methodologies and standards vary by registry and scheme. Advisory evidence for an MRV file, tamper-evident not tamper-proof, retained in the append-only signed archive, zero personal data, and not legal advice.
One witness, many windows.
The same signed-datapoint pattern issues receipts wherever a public reading has to survive a later challenge. See the AI governance and reporting evidence page for signed reporting inputs, the curtailment record for grid-state-at-time-T evidence, and the outage receipt for internet-outage windows.
One API call per reported datapoint.
MRV and disclosure platforms can mint a signed, re-verifiable receipt for every public reading they cite, keyless to try, self-serve to scale.