¶ dcc:hashType
The element type dcc:hashType contains the unique identifier of a referred/referenced certificate and a hash value. In the dcc:description element the certificate can be attached ideally as an XML or a PDF encoded to Base64.
¶ Tree structure
The tree structure of the element type dcc:hashType has the following appearance:
¶ Extract from the XML schema: type definition "hashType"
<xs:complexType name="hashType">
<xs:sequence>
<xs:element name="referral" type="dcc:textType"/>
<xs:element name="referralID" type="dcc:notEmptyStringType"/>
<xs:element name="procedure" type="dcc:notEmptyStringType"/>
<xs:element name="value" type="dcc:notEmptyStringType"/>
<xs:element name="description" type="dcc:richContentType" minOccurs="0"/>
<xs:element name="inValidityRange" type="xs:boolean" minOccurs="0"/>
<xs:element name="traceable" type="xs:boolean" minOccurs="0"/>
<xs:element name="linkedReport" type="dcc:hashType" minOccurs="0"/>
</xs:sequence>
<xs:attribute name="id" type="xs:ID" use="optional"/>
<xs:attribute name="refId" type="xs:IDREFS" use="optional"/>
<xs:attribute name="refType" type="dcc:refTypesType" use="optional"/>
</xs:complexType>
¶ Description of the elements
See the list of abbreviations here
| Element Element type |
Use | Description |
|---|---|---|
| dcc:referral dcc:textType) |
[M] | This field contains the referral/ reference name of the certificate, ideally already a digital certificate such as the DCC. |
| dcc:referralID dcc:notEmptyStringType |
[M] | The identifier (e.g. the calibration certificate number or unique identifier of a DCC) of the certificate is entered here. |
| dcc:procedure dcc:notEmptyStringType |
[M] | The certificate is uniquely identified with a hash value algorithm. With the DCC, this is done automatically with the application of a digital signature. This field contains the algorithm used to calculate the hash value stored in the element dcc:value. If it is an analogue certificate, the word "analogue" is entered in this mandatory element. |
| dcc:value dcc:notEmptyStringType |
[M] | The hash value is stored in this element. It was obtained by applying the hash value algorithm mentioned in the element dcc:procedure to the calibration certificate. If it is an analogue certificate, the word "analogue" is entered in this mandatory element. |
| dcc:description dccrichContentType |
[O] | Additional information can be entered here. Rich content Type can contain files and formulas beside the normal text content. |
| dcc:inValidityRange xs:boolean |
[O] | Indicates whether the equipment was found valid (results in validity range) when the the equipment was calibrated. |
| dcc:traceable xs:boolean |
[O] | Indicates that the linked certificate is traceable |
| dcc:linkedReport dcc:hashType (loop) |
[O] | The element dcc:linkedReport gives the possibility to refer to another certificate from this certificate. A chain of certificates can be specified. The structure of the element dcc:linkedReport also has an element with the element type dcc:hashType. |
¶ Attributes
| Attribute Attribute type |
Use | Description |
|---|---|---|
| id xs:ID |
[O] | This standard XML data type is used to represent a unique ID. It is used to uniquely identify the object in the DCC. The data type xs:ID is deliberately used here because it enables validation without any add-ons in various tools. |
| refId xs:IDREFS |
[O] | IDREF represents the IDREF attribute type from [XML 1.0 (Second Edition)]. The value space of IDREF is the set of all strings that match the NCName production in [Namespaces in XML]. The lexical space of IDREF is the set of strings that match the NCName production in [Namespaces in XML]. The base type of IDREF is NCName. |
| refType dcc:refTypesType |
[O] | A list of refTypes in XML. |
¶ Examples
¶ Example 1
If the previous calibration certificate was a digital calibration certificate with dcc:uniqueIdentifier4914246</dcc:uniqueIdentifier>.
It has been hashed with the hash value algorithm SHA256. The hash value is
e14f080fcc4a8b2ut879add657d9e66f7896a.
<dcc:previousReport>
<dcc:referral>
<dcc:content lang="en">The predecessor calibration certificate is a DCC.</dcc:content>
</dcc:referral>
<dcc:referralID>4914246</dcc:referralID>
<dcc:procedure>SHA256</dcc:procedure>
<dcc:value>e14f080fcc4a8b2ut879add657d9e66f7896a</dcc:value>
</dcc:previousReport>
¶ Example 2
If instead of dcc:uniqueIdentifier another dcc:identification of the previous certificate has to be referenced, than refTypes have to be used.
<dcc:identification refType="basic_orderNumber">
<dcc:issuer>calibrationLaboratory</dcc:issuer>
<dcc:value>abc123</dcc:value>
<dcc:name>
<dcc:content lang="de">Geschäftszeichen</dcc:content>
<dcc:content lang="en">Reference No.</dcc:content>
</dcc:name>
</dcc:identification>
It has been hashed with the hash value algorithm SHA256. The hash value is
e14f080fcc4a8b2ut879add657d9e66f7896a.
<dcc:previousReport refType="basic_orderNumber">
<dcc:referral>
<dcc:content lang="en">The predecessor calibration certificate is a DCC.</dcc:content>
</dcc:referral>
<dcc:referralID>abc123</dcc:referralID>
<dcc:procedure>SHA256</dcc:procedure>
<dcc:value>e14f080fcc4a8b2ut879add657d9e66f7896a</dcc:value>
</dcc:previousReport>
¶ Example 3
Same as example 1, with an additional previous analogue calibration certificate with certificate number 5678.
<dcc:previousReport>
<dcc:referral>
<dcc:content lang="en">The predecessor calibration certificate is a DCC.</dcc:content>
</dcc:referral>
<dcc:referralID>4914246</dcc:referralID>
<dcc:procedure>SHA256</dcc:procedure>
<dcc:value>e14f080fcc4a8b2ut879add657d9e66f7896a</dcc:value>
<dcc:linkedReport>
<dcc:referral>
<dcc:content lang="en">The predecessor calibration certificate is an analogous Calibration Certificate.</dcc:content>
</dcc:referral>
</dcc:referralID>5678</dcc:referralID>
<dcc:procedure>analogue</dcc:procedure>
<dcc:value>analogue</dcc:value>
</dcc:linkedReport>
</dcc:previousReport>