# more than 120 year after life sign plus 100 year copyright duration
**Wikidata**: [Q87721093](https://www.wikidata.org/wiki/Q87721093)  
**Source**: https://4ort.xyz/entity/more-than-120-year-after-life-sign-plus-100-year-copyright-duration

## Summary
"More than 120 year after life sign plus 100 year copyright duration" is a named heuristic used to determine the copyright status of a creator. As represented in the provided source data, it is an instance of a copyright determination method whose practical effect is that copyrights on works are treated as expired worldwide.

## Key Facts
- The entity is an instance of a "copyright determination method" and a "heuristic for determination of copyright status of a creator."
- The heuristic is labeled "more than 120 year after life sign plus 100 year copyright duration."
- The heuristic is used as a reference for determining the copyright status of a creator (property P7763).
- The stated effect (has_effect) is that copyrights on works have expired.
- The expiry effect is qualified as applying "worldwide" (qualifier P1001: worldwide).
- The entry is described as a class-level heuristic ("heuristic for determination of copyright status of a creator [class]").
- The source material treats the heuristic as a determination method rather than a legal rule or statute.

## FAQs
### Q: What is "more than 120 year after life sign plus 100 year copyright duration"?
A: It is the name of a heuristic (a copyright determination method) used to assess a creator's copyright status. The source represents it as a method whose effect is that copyrights on works have expired worldwide.

### Q: Is this a legal rule or law?
A: The source describes it as a heuristic and an instance of a copyright determination method, not as a statute or legally binding rule. It is used as a reference for determining copyright status.

### Q: What does the "worldwide" qualifier mean here?
A: In the provided data, the heuristic's effect that copyrights have expired is explicitly qualified with P1001: "worldwide," indicating the heuristic is applied with a worldwide scope in the source representation.

### Q: How is this heuristic referenced in structured data?
A: The heuristic is linked to property P7763 as a reference method for determining a creator's copyright status.

## Why It Matters
This heuristic matters because it provides a concise, machine-readable rule of thumb within structured data for judging when works can be treated as out of copyright. By being modeled as a copyright determination method with an explicit worldwide expiry effect, it can be used by knowledge systems, catalogs, and automated workflows to categorize works as public-domain or expired in scope. That simplifies large-scale metadata processing, rights clearance, and archival decisions where legal nuance may be unavailable. Because the heuristic is presented as a reference method (P7763) rather than a statute, it signals to users and systems that it is a practical rule-of-thumb for automated determination rather than a definitive legal assertion. Its explicit worldwide qualifier helps standardize downstream handling when an application or dataset relies on a uniform expiry assumption.

## Notable For
- Being an explicitly named heuristic used for determining a creator's copyright status.
- Modeled as an instance of a "copyright determination method" rather than a legal instrument.
- Having the stated effect that copyrights on works have expired.
- Carrying a "worldwide" qualifier (P1001) on its expiry effect.
- Being referenced via property P7763 as a determination heuristic in structured data.

## Body
### Label and Nature
- Name: "more than 120 year after life sign plus 100 year copyright duration."
- Nature: Heuristic; instance of copyright determination method.
- Class-level description: "heuristic for determination of copyright status of a creator [class]."

### Structured relations
- Instance of: copyright determination method; heuristic for determination of copyright status of a creator.
- Related property: used as a reference for determining copyright status of a creator (P7763).

### Effect and qualifiers
- has_effect: copyrights on works have expired.
- Qualifier on effect: P1001 = "worldwide" (the expiration effect is qualified as worldwide).

### Usage and scope
- Represented as a reference heuristic rather than statutory text.
- Intended role is to guide determination of whether a creator's works should be treated as expired in copyright.
- The source frames it for use in structured-data contexts where a deterministic heuristic is required.

### Data provenance (from provided material)
- The properties and relations above come from the supplied "Structured Properties (from Wikidata + academic sources)" and the "related" description indicating it is a heuristic used for determination (P7763).