00001012053300 API: Retrieve metadata and content of an existing zettel 00001006000000 Layout of a Zettel 00001012000000 API 00001012054200 API: Update a zettel 00001012920000 Endpoints used by the API 00001012053200 API: Create a new zettel 00001012053400 API: Retrieve metadata of an existing zettel 00001012050200 API: Authenticate a client 00001010040100 Enable authentication 00001006050000 Zettel identifier 00001012921200 API: Encoding of Zettel Access Rights 00001012930500 Syntax of Symbolic Expressions 00001012920800 Values to specify zettel parts