Final answer:
The provided excerpts are from an art project and a symbolic act in literature, not a process outlining traditional cremation protocol. The 'Cremation Project, 1970' by John Baldessari was a conceptual artwork involving the cremation of his paintings, while the GUARD excerpt refers to burial and rituals, highlighting different contexts from the cremation process mentioned.
Step-by-step explanation:
The person who authorized the cremation must typically retrieve the cremated remains after the cremation process is complete. If they do not, the crematory may have policies in place for handling unclaimed remains. However, in the context of the texts provided, we're dealing with a symbolic act rather than a literal procedure as described in typical cremation practices. The excerpt from the GUARD suggests a mention of a burial and associated rituals being performed, which is part of a different context altogether.
Referring to the Cremation Project, 1970, by artist John Baldessari, it seems we are discussing an art piece—a conceptual work where the artist cremated all of his paintings created between 1953 and 1966 and placed the ashes into an urn. The project is completed with a plaque and documentary photographs that serve as evidence of his act, which was an expression of letting go of past works to create room for new ideas. In this sense, the ceremonial act stands completed with the documentation and the preservation of the ashes in an urn.