A.10.1:4.2 - Compare the Source at Claim Size
Recover each source as a C.2.1 episteme: a claim-bearing informational object, not its file or display. Name the predecessor and later or replacement episteme, their relevant claim addresses, subjects, interpretation bases, effective conditions, and edition relation when that relation is established.
Treat a difference as material here only when it can alter a receiving action or result. Useful comparison dimensions are:
| Comparison dimension | Question |
|---|---|
| Proposition or result | Does the later source state a different fact, value, rule, or result? |
| Subject and scope | Does the claim now concern a different entity, population, configuration, jurisdiction, interval, or use? |
| Applicability and assumptions | Did an entry condition, premise, model assumption, or interpretation basis change? |
| Limits and uncertainty | Did a supported range, exclusion, uncertainty, evidence status, or unsupported use change? |
| Effective conditions | Did an effective date, validity window, revocation, supersession, or conditional branch change? |
Wording can change without meaning changing; one word can also reverse an obligation. A text diff is a locator, not the semantic verdict.
If the same source episteme is merely republished on a new carrier, update the governed identity, publication, representation, availability, or one-use reliance facts through C.2.1, E.17, E.24.PUB, and A.10 as applicable. Do not open the several-use search unless availability itself changes the bounded reliance question.