Change: "JSON whitespace is not part of the contents of a resource. Applications MAY preserve the whitespace when handling resources, but are not required to do so. Note that digital signatures may depend on the whitespace" to: "JSON and XML whitespace (whitespace introduced for rendering purposes - aka "pretty printing") is not part of the contents of a resource. Applications MAY preserve the whitespace when handling resources, but are not required to do so. Note that digital signatures following [HL7's signature guidance] (section in data types on signatures & canonicalization) and using the defined canonicalization mechanisms will ignore formatting whitespace"