Tender

exact: ocds:ocid

A public procurement process, shaped by the Open Contracting Data Standard. `ocid` is the OCDS open contracting identifier and is the primary key, so Certvas rows can be joined back to the publishing authority's own release.

Slots

slot	range		description
`ocid`	`string`	required	Open Contracting identifier for the process, joinable to the publisher's release.
`country`	`string`	required	ISO 3166-1 alpha-2 country code.
`buyer_dataco_id`	`string`	optional	The contracting authority, where it resolved to the spine. Null when unresolved.
`title`	`string`	optional	Tender title as published.
`category_code`	`string`	optional	Procurement category, as classified by the publishing authority.
`method`	`string`	optional	Procurement method — for example open, selective or limited.
`value_estimate`	`decimal`	optional	Estimated process value, in `currency`.
`currency`	`string`	optional	ISO 4217 code for the monetary values on this row.
`publish_date`	`date`	optional	When the tender was published.
`close_date`	`date`	optional	When the tender closed for submissions.
`tender_status`	`string`	optional	Process status as published.
`observed_at`	`datetime`	required	When Certvas itself observed this value. Never a proxy for publication date.
`source_ref`	`string`	required	URL or document-hash pointer into the immutable raw archive.
`license_class`	`string`	required	License Register ID governing redistribution of THIS row. Per-row rather than per-table because a single table legitimately mixes sources with different terms.
`valid_from`	`date`	required	Start of the interval over which this assertion holds.
`valid_to`	`date`	optional	End of the validity interval; NULL means current. Half-open, so `valid_from <= t < valid_to` selects without double-counting the boundary.