# Provenance

URL: /evidence/provenance · Id: `term:provenance`

> Who asserted a fact and how, on four axes; an ingested record that cannot be stamped is rejected, never defaulted.

Provenance is who asserted a fact and how, on four axes; an ingested record that cannot be stamped is rejected, never defaulted.

## Parts
| Axis | What it records | For example |
| --- | --- | --- |
| `channel` | How the fact arrived. | `ingest` |
| `derivation` | How the value was made from what the source said. | `stated, normalized or computed` |
| `verification` | Who vouches for the fact. | `posted` |
| `license` | The license the fact is held under. | `LicenseRef-us-public-record` |

## Example
```json title="The stamp on one Tidecharts prediction"
{ "channel": "ingest", "derivation": "stated", "verification": "posted", "license": "CC0-1.0" }
```