---
title: Temporal, version, and supersession graph
code: G29
shelf: Graph systems
url: https://library.feedthejoe.com/graph-systems/g29-temporal-version-and-supersession-graph/
markdown: https://library.feedthejoe.com/graph-systems/g29-temporal-version-and-supersession-graph.md
author: Joseph W. Anady
publisher: THATDEVELOPERGUY LLC
status: "Researched: Not deployed"
summary: Which fact or instruction applied at the relevant time?
published: 2026-09-12
reviewed: 2026-09-12
modified: 2026-09-12
release: 2026.09.12-g40
edition: 2026.09.12-g40
words: 140
sources:
  - graph:S12
  - graph:S14
cites:
  - https://library.feedthejoe.com/graph-systems/primary-source-register/
rights: © 2026 THATDEVELOPERGUY LLC. All rights reserved.
---

# G29 Temporal, version, and supersession graph

## Question

Which fact or instruction applied at the relevant time?

## Nodes

Claim; Document version; Effective interval; Observation; Supersession

## Relationship sketch

* version → superseded version
* claim → applicable interval
* observation → collected time

## Evidence inputs

Actual publication/effective dates, revision records, retrieval date, scope decisions.

## Implementation

Store effective time separately from observation time. Keep historical claims for historical questions while blocking them from current instructions when superseded.

## Acceptance checks

* An unknown effective date stays null
* Current retrieval respects supersession
* A review date is not substituted for a publication date

## Do not infer

Newer text is not automatically more authoritative than older applicable evidence.

## Publication boundary

Public revision notes as appropriate; internal record history private.

## Source basis

[S12](https://library.feedthejoe.com/graph-systems/primary-source-register/#S12), [S14](https://library.feedthejoe.com/graph-systems/primary-source-register/#S14). See Research/sources.json. Sources support the primitives or named technology. The organization, labels, actions, and acceptance contracts in this catalog are this library's design, not claimed provider requirements.