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Terra Vita logo Terra Vita HubEvidence governance layer
Hub v526.2 · guided operational companion profile

Evidence governance made explicit and testable.

The Hub now distinguishes who produced an object, who owns it, who holds it, who may act on it and what use is permitted.

The optional evidence_governance envelope adds authority, validation, interoperability and lifecycle controls without deleting, renaming or restructuring existing Hub objects. In the protected Evidence Explorer, the envelope is now stored as a revision-controlled companion profile linked to the existing evidence ID.

Operational activation

Profiles now attach to existing evidence without overwriting it.

An authorised reviewer can initialise a held profile from recorded evidence, edit controlled fields with field-specific guidance, record a bounded human review and inspect immutable revision history. Guidance never inserts or infers operational facts. Revision locking prevents one reviewer from silently overwriting another reviewer’s newer changes.

1

Select evidence

Open an existing spatial-calibration record in the protected Evidence Explorer.

2

Initialise safely

Recorded values are copied with durable references; unsupported values remain unconfirmed.

3

Review under identity

The authenticated reviewer records scope, purpose, uncertainty, exceptions and reliance posture.

4

Preserve history

Every revision receives a hash, actor, timestamp and change summary.

P0 enforcement: conditional or permitted reliance is rejected while any Authority or Validation field remains unconfirmed. The evidence producer cannot record the bounded reliance action.
Four control families

Twenty-two fields, one bounded envelope.

When the optional envelope is used, every field must carry a controlled status. A blank cell is not an acceptable substitute for uncertainty.

P05 fields

Authority

Separates producer, owner, custodian, legal authority and usage rights.

  • producer
  • owner
  • custodian
  • legal_authority
  • usage_rights
P07 fields

Validation

Records the bounded human review and the purpose for which reliance may or may not occur.

  • reviewer
  • protocol
  • review_scope
  • accepted_purpose
  • uncertainty
  • exceptions
  • reliance_status
P15 fields

Interoperability

Makes mappings and exports versioned and testable without implying external conformity.

  • external_standard
  • schema_version
  • mapping
  • export_profile
  • interoperability_test
P15 fields

Lifecycle

Names the steward and preserves the route from update through supersession, retirement and history.

  • data_steward
  • update_trigger
  • supersession
  • retirement
  • change_history
Backward-compatible adoption

Legacy objects remain valid.

1

Existing object

The object remains unchanged when no evidence-governance envelope is present.

2

Profile when touched

Add the optional envelope only when the record is reviewed, exported or materially updated.

3

Confirm from evidence

Populate a value only when a source reference supports it.

4

Expose uncertainty

Record unconfirmed with a note when evidence is absent.

Controlled QA

Rwanda note and synthetic transaction.

The same 22-field profile is applied to one existing opportunity note and one synthetic transaction. The Rwanda record deliberately remains held where authority and permitted use are not evidenced.

Loading controlled test records…
Extension boundary

Sector-specific data does not reshape the core.

LCI process context and functional-unit data are available only through the inactive TV-EG-EXT-LCI-0.1 reference profile. Activating or extending that profile would require separate governance review and would still not establish conformity with an external method or standard.

Open the separate extension profile
Reliance boundary

Profiled does not mean approved.

Completing these fields does not make an object accurate, admissible, certified, investment-ready or fit for institutional reliance. A named human reviewer and the receiving institution retain those decisions under their own authority.