# Questions about Version and Attestation

**Category:** [Clinical (archive)](https://discourse.openehr.org/c/clinical-archive/153)
**Created:** 2011-12-05 20:50 UTC
**Views:** 4
**Replies:** 2
**URL:** https://discourse.openehr.org/t/questions-about-version-and-attestation/12935

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## Post #1 by @pablo

Hi,

I'm going through the specs to create ppts for the openEHR course in spanish, now I'm trying to explain about the electronic signature generation for a clinical record.

Should a non persistent compositon be versioned?

If not, is the only way of signing that non versioned composition to have an attestation with a reference to that composition in its "items"?

If that's right, I think this constraint should be added to the invariants on ATTESTATION or in the description of the ATTESTATION.items attribute. E.g. if there are no items, it should be a VERSION to the attested item, but if there is no version for the item, it MUST be referenced by ATTESTATION.items.

What do you think?

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## Post #2 by @thomas.beale

Hi Pablo

all Compositions are versioned. A new version in a 'non-persistent' Composition is usually a correction.

- thomas

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## Post #3 by @pablo

Great! thanks a lot.

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**Canonical:** https://discourse.openehr.org/t/questions-about-version-and-attestation/12935
**Original content:** https://discourse.openehr.org/t/questions-about-version-and-attestation/12935