Hi Andy,
We are happy to provide a list of the current Paperpile -> CSL mapping:
Journal Article => article-journal
Title => title
Authors => author
Journal => container-title
Date published => issued
Abstract => abstract
Volume => volume
Issue => issue
Pages => page
URLs => URL
DOI => DOI
PMID => PMID
Original title => original-title
Short title => shortTitle
Status => status
Keywords => keyword
Notes => annote
Language => language
Series => collection-title
Series number => collection-number
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Archive prefix => archive
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Editors => editor
Series editors => collection-editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
ISSN => ISSN
PMC ID => PMCID
Book => book
Title => title
Authors => author
Editors => editor
Date published => issued
Publisher => publisher
Address => publisher-place
Series => collection-title
Volume => volume
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Series number => collection-number
Chapter => chapter-number
Edition => edition
Pages cited => page
URLs => URL
Original publisher => original-publisher
Original address => original-publisher-place
Conference => event
Conference location => event-place
Page count => number-of-pages
Volume count => number-of-volumes
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Series editors => collection-editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Conference date => event-date
ISSN => ISSN
ISBN => ISBN
DOI => DOI
Book Chapter => chapter
Book title => container-title
Book editors => editor
Chapter title => title
Chapter pages => page
Chapter authors => author
Abstract => abstract
Date published => issued
Publisher => publisher
Address => publisher-place
Series => collection-title
Volume => volume
Original title => original-title
Short title => shortTitle
Status => status
Keywords => keyword
Notes => annote
Language => language
Series number => collection-number
Chapter => chapter-number
Edition => edition
URLs => URL
Original publisher => original-publisher
Original address => original-publisher-place
Conference => event
Conference location => event-place
Volume count => number-of-volumes
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Series editors => collection-editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Conference date => event-date
ISSN => ISSN
ISBN => ISBN
PMID => PMID
DOI => DOI
PMC ID => PMCID
Conference Paper => paper-conference
Title => title
Proceedings title => container-title
Authors => author
Editors => editor
Pages => page
Date published => issued
Institution => publisher
Series => collection-title
Publisher => publisher
Address => publisher-place
Conference => event
Conference location => event-place
Conference date => event-date
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Series number => collection-number
Volume => volume
Number => number
URLs => URL
Original publisher => original-publisher
Original address => original-publisher-place
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Series editors => collection-editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
ISSN => ISSN
ISBN => ISBN
PMID => PMID
DOI => DOI
PMC ID => PMCID
Thesis => thesis
Title => title
Authors => author
Advisor => editor
School => publisher
Department => department
Degree => genre
Date published => issued
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
URLs => URL
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Page count => number-of-pages
Archive => archive
Archive location => archive_location
Archive place => archive-place
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
ISBN => ISBN
DOI => DOI
Preprint Manuscript => manuscript
Title => title
Authors => author
Source => container-title
Institution => publisher
Series => collection-title
Number => number
Date published => issued
URLs => URL
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Issue => issue
Pages => page
Conference => event
Conference location => event-place
Page count => number-of-pages
Archive prefix => archive
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Editors => editor
Translators => translator
Date accessed => accessed
Conference date => event-date
DOI => DOI
Archival Material => manuscript
Title => title
Authors => author
Collection => collection-title
Archive => archive
Archive location => archive_location
Archive place => archive-place
URLs => URL
Date published => issued
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Collection number => collection-number
Volume => volume
Pages => page
How published => container-title
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Page count => number-of-pages
Volume count => number-of-volumes
Custom sub-type => genre
Editors => editor
Editor of the collection => collection-editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
ISBN => ISBN
DOI => DOI
Website => webpage
Title => title
Website name => container-title
URLs => URL
Authors => author
Date accessed => accessed
Date published => issued
Original title => original-title
Short title => shortTitle
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Custom sub-type => genre
Translators => translator
Date of the original publication => original-date
DOI => DOI
News Article => article-newspaper
Title => title
Authors => author
Abstract => abstract
Journal => container-title
Pages => page
Volume => volume
Issue => issue
Edition => edition
Date published => issued
Original title => original-title
Short title => shortTitle
Keywords => keyword
Notes => annote
Language => language
URLs => URL
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Page count => number-of-pages
Volume count => number-of-volumes
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Editors => editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
ISSN => ISSN
DOI => DOI
Patent => patent
Patent title => title
Inventors => author
Issuing authority => authority
Patent number => number
Date filed => submitted
Date published => issued
Abstract => abstract
Original title => original-title
Short title => shortTitle
Status => status
Keywords => keyword
Notes => annote
Language => language
Type of patent => container-title
URLs => URL
Institution => publisher
Address => publisher-place
Original address => original-publisher-place
Application number => call-number
Priority numbers => issue
Custom sub-type => genre
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
ISSN => ISSN
DOI => DOI
Presentation => speech
Title => title
Event name => event
Event place => event-place
Presenter => author
Abstract => abstract
Date => issued
URLs => URL
Original title => original-title
Short title => shortTitle
Status => status
Keywords => keyword
Notes => annote
Language => language
Journal => event
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Custom sub-type => genre
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Date of the event => event-date
DOI => DOI
Computer Program => book
Title => title
Version => version
Authors => author
Date published => issued
URLs => URL
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Publisher => publisher
Original publisher => original-publisher
Institution => publisher
Address => publisher-place
Original address => original-publisher-place
Custom sub-type => genre
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
DOI => DOI
Manual or Documentation => report
Title => title
Version => version
Authors => author
Institution => publisher
Date published => issued
URLs => URL
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Number => number
Edition => edition
Pages => page
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Page count => number-of-pages
Custom sub-type => genre
Editors => editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
ISBN => ISBN
DOI => DOI
Dataset => dataset
Dataset name => title
Dataset author(s) => author
Dataset URL => URL
Dataset DOI => DOI
Date published => issued
Date accessed => accessed
Publication title => container-title
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Edition => edition
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Version => version
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Editors => editor
Translators => translator
Date of the original publication => original-date
Report => report
Title => title
Authors => author
Number => number
Institution => publisher
Date published => issued
Page count => number-of-pages
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Series => collection-title
Series number => collection-number
Volume => volume
Edition => edition
Pages cited => page
URLs => URL
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Event name => event
Event place => event-place
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Editors => editor
Series editors => collection-editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Date of the event => event-date
ISBN => ISBN
DOI => DOI
Personal Communication => personal_communication
Author or source => author
Date => issued
Recipient => recipient
Abstract => abstract
Title => title
Original title => original-title
Short title => shortTitle
Keywords => keyword
Notes => annote
Language => language
Volume => volume
Number => number
URLs => URL
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Conference => event
Conference location => event-place
Archive => archive
Archive location => archive_location
Archive place => archive-place
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Conference date => event-date
DOI => DOI
Unpublished => article
Title => title
Authors => author
Date => issued
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Number => number
URLs => URL
Event name => event
Event place => event-place
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Translators => translator
Date accessed => accessed
Date of the event => event-date
Miscellaneous => article
Title => title
Authors => author
URLs => URL
Date published => issued
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Book title => container-title
Series => collection-title
Series number => collection-number
Journal => container-title
Chapter => chapter-number
Volume => volume
Number => number
Issue => issue
Edition => edition
Pages => page
Publisher => publisher
Original publisher => original-publisher
Institution => publisher
School => publisher
Department => department
Address => publisher-place
Original address => original-publisher-place
Version => version
Scale => scale
Conference => event
Conference location => event-place
Page count => number-of-pages
Volume count => number-of-volumes
Archive prefix => archive
Archive => archive
Archive location => archive_location
Archive place => archive-place
Running time => dimensions
Medium => medium
Custom sub-type => genre
Editors => editor
Series editors => collection-editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Conference date => event-date
ISSN => ISSN
ISBN => ISBN
PMID => PMID
DOI => DOI
PMC ID => PMCID
Broadcast => broadcast
Title => title
Program Title => container-title
Directors => author
Network => publisher
Address => publisher-place
Episode Number => number
URLs => URL
Broadcast date => issued
Format => medium
Running time => dimensions
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Series => collection-title
Series number => collection-number
Volume => volume
Edition => edition
Original publisher => original-publisher
Original address => original-publisher-place
Event name => event
Event place => event-place
Volume count => number-of-volumes
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Date of the event => event-date
DOI => DOI
Audio => song
Title => title
Performers => author
Label or publisher => publisher
URLs => URL
Date released => issued
Medium => medium
Running time => dimensions
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Album name => container-title
Series => collection-title
Series number => collection-number
Volume => volume
Episode Number => number
Edition => edition
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Version => version
Event name => event
Event place => event-place
Volume count => number-of-volumes
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Composers => composer
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Date of the event => event-date
DOI => DOI
Video or Film => motion_picture
Title => title
Directors => author
Studio or distributor => publisher
Country => publisher-place
URLs => URL
Date released => issued
Medium => medium
Running time => dimensions
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Series => collection-title
Series number => collection-number
Volume => volume
Number => number
Edition => edition
Original publisher => original-publisher
Original address => original-publisher-place
Version => version
Event name => event
Event place => event-place
Volume count => number-of-volumes
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Date of the event => event-date
DOI => DOI
Figure => figure
Title => title
Authors => author
Publisher => publisher
URLs => URL
Date published => issued
Format => medium
Number => number
Original title => original-title
Short title => shortTitle
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Edition => edition
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Version => version
Event name => event
Event place => event-place
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Date of the event => event-date
DOI => DOI
Artwork => graphic
Title => title
Artist => author
URLs => URL
Institution => publisher
Address => publisher-place
Date => issued
Medium => medium
Original title => original-title
Short title => shortTitle
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Series => collection-title
Series number => collection-number
Number => number
Original address => original-publisher-place
Version => version
Size => dimensions
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
DOI => DOI
Musical Score => musical_score
Title => title
Composer => author
Number => number
Publisher => publisher
Address => publisher-place
Date published => issued
Original title => original-title
Short title => shortTitle
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Series => collection-title
Series number => collection-number
Volume => volume
URLs => URL
Original publisher => original-publisher
Original address => original-publisher-place
Version => version
Page count => number-of-pages
Volume count => number-of-volumes
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Editors => editor
Series editors => collection-editor
Translators => translator
Date accessed => accessed
Composition date => submitted
Date of the original publication => original-date
DOI => DOI
Grant => report
Title => title
Authors => author
Number => number
Sponsoring agency => publisher
Date granted => issued
Page count => number-of-pages
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Edition => edition
URLs => URL
Address => publisher-place
Custom sub-type => genre
Editors => editor
Translators => translator
Date accessed => accessed
Date submitted => submitted
DOI => DOI
Standard => report
Title => title
Issuing Agency => author
Number => number
Date published => issued
Page count => number-of-pages
Publisher => publisher
Address => publisher-place
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Edition => edition
Pages cited => page
URLs => URL
Original publisher => original-publisher
Original address => original-publisher-place
Custom sub-type => genre
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
DOI => DOI
Map => map
Title => title
Cartographer => author
URLs => URL
Scale => scale
Publisher => publisher
Address => publisher-place
Date published => issued
Original title => original-title
Short title => shortTitle
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Number => number
Edition => edition
Original publisher => original-publisher
Original address => original-publisher-place
Version => version
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Editors => editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
DOI => DOI
Letter => personal_communication
Sender => author
Date => issued
Recipient => recipient
Abstract => abstract
Collection => collection-title
Archive => archive
Archive location => archive_location
Archive place => archive-place
URLs => URL
Title => title
Original title => original-title
Short title => shortTitle
Keywords => keyword
Notes => annote
Language => language
Collection number => collection-number
Volume => volume
Number => number
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Conference => event
Conference location => event-place
Page count => number-of-pages
Volume count => number-of-volumes
Custom sub-type => genre
Collection editor => collection-editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Conference date => event-date
DOI => DOI
Interview => interview
Interview with => author
Interviewer => interviewer
Date => issued
Abstract => abstract
Event name => event
Event place => event-place
Date of the event => event-date
Type => genre
URLs => URL
Title => title
Original title => original-title
Short title => shortTitle
Keywords => keyword
Notes => annote
Language => language
Magazine => container-title
Volume => volume
Number => number
Issue => issue
Pages => page
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Page count => number-of-pages
Volume count => number-of-volumes
Archive => archive
Archive location => archive_location
Archive place => archive-place
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
DOI => DOI
Book or Film Review => review-book
Title => title
Authors => author
Title of the reviewed item => reviewed-title
Reviewed author => reviewed-author
Journal => container-title
Date published => issued
Volume => volume
Issue => issue
Pages => page
URLs => URL
Original title => original-title
Short title => shortTitle
Status => status
Abstract => abstract
Keywords => keyword
Notes => annote
Language => language
Series => collection-title
Series number => collection-number
Chapter => chapter-number
Edition => edition
Publisher => publisher
Original publisher => original-publisher
Address => publisher-place
Original address => original-publisher-place
Page count => number-of-pages
Volume count => number-of-volumes
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Editors => editor
Series editors => collection-editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
ISSN => ISSN
ISBN => ISBN
DOI => DOI
Encyclopedia Article => entry-encyclopedia
Title => title
Encyclopedia title => container-title
Pages => page
Authors => author
Abstract => abstract
Date published => issued
Publisher => publisher
Address => publisher-place
Original title => original-title
Short title => shortTitle
Status => status
Keywords => keyword
Notes => annote
Language => language
Chapter => chapter-number
Volume => volume
Edition => edition
URLs => URL
Original publisher => original-publisher
Original address => original-publisher-place
Conference => event
Conference location => event-place
Volume count => number-of-volumes
Archive => archive
Archive location => archive_location
Archive place => archive-place
Custom sub-type => genre
Editors => editor
Translators => translator
Date accessed => accessed
Date of the original publication => original-date
Conference date => event-date
ISSN => ISSN
ISBN => ISBN
DOI => DOI