If a Deputy install has some custom field data it will be available via this resource.

Data ElementData TypeWhat is itMandatory
systemStringInternal use onlyYes
f01 - f128blobThere is up to 128 blobs of field data stored in the Deputy system. Each element will be represented by a data element ranging from f01 - f128 in nameNo
creatorIntegerThe record id for the user which created the field dataNo
createdDateTimeWhen the custom field data was first createdNo
modifiedDateTimeThe last time the custom field data was modifiedNo

Foreign Objects which can be linked with the Resource API