This code system http://uri.etsi.org/01903/v1.2.2 defines the following codes:

Code Display Definition
ProofOfOrigin Proof of origin indicates that the signer recognizes to have created, approved and sent the signed data object.
ProofOfReceipt Proof of receipt indicates that signer recognizes to have received the content of the signed data object.
ProofOfDelivery Proof of delivery indicates that the TSP providing that indication has delivered a signed data object in a local store accessible to the recipient of the signed data object.
ProofOfSender Proof of sender indicates that the entity providing that indication has sent the signed data object (but not necessarily created it).
ProofOfapproval Proof of approval indicates that the signer has approved the content of the signed data object.
ProofOfCreation Proof of creation indicates that the signer has created the signed data object (but not necessarily approved, nor sent it).
<status value="active"/> <experimental value="false"/> <date value="2025-09-13T16:55:28-04:00"/> <publisher value="FHIR Infrastructure"/> <contact> <name value="FHIR Infrastructure"/> <telecom> <system value="url"/> <value value="http://www.hl7.org/Special/committees/fiwg"/> </telecom> </contact> <description value="The ETSI TS 101 733 V2.2.1 (2013-04) - Electronic Signatures and Infrastructures (ESI) - defines a set of Commitment Types (Purpose of Signature). ETSI TS 101 903 V1.2.2 defines vocabulary identifiers for these Commitment Types. Digital Signature Purposes, an indication of the reason an entity signs a document. This is included in the signed information and can be used when determining accountability for various actions concerning the document."/> <jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </coding> </jurisdiction> <copyright value="These codes are excerpted from ETSI Standard for Digital Signatures and XAdES, Copyright by ETSI International. Copies of this standard are available through the ETSI Web Site at www.etsi.org."/> <caseSensitive value="true"/> <content value="complete"/> <concept> <code value="ProofOfOrigin"/> <display value="Proof of origin"/> <definition value="indicates that the signer recognizes to have created, approved and sent the signed data object."/> </concept> <concept> <code value="ProofOfReceipt"/> <display value="Proof of receipt"/> <definition value="indicates that signer recognizes to have received the content of the signed data object."/> </concept> <concept> <code value="ProofOfDelivery"/> <display value="Proof of delivery"/> <definition value="indicates that the TSP providing that indication has delivered a signed data object in a local store accessible to the recipient of the signed data object."/> </concept> <concept> <code value="ProofOfSender"/> <display value="Proof of sender"/> <definition value="indicates that the entity providing that indication has sent the signed data object (but not necessarily created it)."/> </concept> <concept> <code value="ProofOfapproval"/> <display value="Proof of approval"/> <definition value="indicates that the signer has approved the content of the signed data object."/> </concept> <concept> <code value="ProofOfCreation"/> <display value="Proof of creation"/> <definition value="indicates that the signer has created the signed data object (but not necessarily approved, nor sent it)."/> </concept> </CodeSystem>