# register (record)

a list where items are added

- Computed level: L10 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: common  ·  Arena: register

## Emergence
**Emerges from:** [list](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-list.ordered), [add](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-add.operation)

**Through:** list groups items and add puts each new item into list

**Novel properties:**
- ordered collection
- recorded entries
- persistent register

## Examples
- The International Civil Aviation Organization maintains a global register of aircraft radio call signs. *(institutions)*
- The Bitcoin blockchain grows by adding transaction records in sequence, forming a public register. *(computing)*
- The Library of Congress assigns every book published in the US an ISBN, adding it to the national register. *(everyday life)*

## Used by
- [erosion](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-erosion.process) (L12)
- [recorded](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-recorded.information) (L11)
- [records](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-records.document) (L11)
- [registration](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-registration.administrative) (L11)

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*Canonical: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-register.record*  
*Structured data: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-register.record.json*  
*Every definition provably resolves to space, time, energy and pattern.*