Glossary

Anchor
A signed snapshot of the audit chain head at a point in time.
Attribution
In social return, the share of an outcome that others deserve credit for.
CBAM
The EU carbon border adjustment mechanism. Covers cement, fertilizers, iron and steel, aluminium, electricity and hydrogen.
Chain of custody
The record of a lot moving from point to endpoint, with weight in and out.
Claimed
A figure stated but not yet corroborated.
Commons
The shared, sector-governed layer where verified aggregates are published. Only proof travels.
Consent
A participant's recorded permission for a stated use of their data.
Deadweight
In social return, what would have happened without the programme.
Embedded emissions
Emissions released making a good, counted when it is imported.
EUDR
The EU deforestation regulation.
Farm-gate price
The price the farmer is paid at the farm or first point of sale.
Fingerprint
The SHA-256 hash of a photo's exact bytes.
Flag
A reason a record is held back, raised by a check and cleared by a verification officer.
Hash chain
Records linked so that changing one changes every later hash.
Idempotency key
A code minted on the phone so a capture retried after a dropped signal is stored once.
Inconsistent
Two sources disagree.
Living income
The income a household needs for a decent standard of living, per year.
Merkle root
One hash that summarises a set of records.
Outbox
Captures waiting on the phone to be sent.
Proxy
The value per unit assigned to an outcome in social return.
SROI
Social return on investment: discounted outcome value divided by the investment.
Unmeasured
No data exists.
Verified
Independently corroborated.
Verification officer
The role that resolves flags and countersigns anchors.