Getting started with looking up metadata

Get started: Looking up metadata Patricia Feeney

Product Support Manager @CrossrefSupport

funders

data

clinical trials grant

#s

versions

DOI

funders

data

updates

DOI

preprint

funders

data

grant #s

versions

preprint funders

data

clinical trials

updates

grant #s

versions

preprint

funders

data

DOI

updates

grant #s

versions

updates

updates

updates

data

data

data data

data

data

data

data

data

data data

updates

DOI

DOI

DOI

DOI

metadata including…

author names, ORCIDs, affiliations, article titles, ISSN, ISBN, pages, issue #, volume #s, dates, identifiers

more metadata reference lists, funding data, ORCIDs, license data, clinical trial numbers, errata, retractions, updates and more through our Crossmark service, JATS-formatted abstracts, relationships between items…

What do you want to do?

• Look up metadata for a DOI

• Match a reference / metadata to a DOI

• Look up / retrieve metadata based on defined criteria

• Get everything

Have a DOI?

Metadata Search ( https://search.crossref.org )

REST API

XML API

OpenURL

XML metadata records!

XML API: http://doi.crossref.org/search/doi?pid=youremail@example.org&format=unixsd&doi=10.1162/152651601750079104

OpenURL:

https://www.crossref.org/openurl?pid=youremail@example.org&format=unixsd&id=doi:10.1162/152651601750079104&noredirect=true

Registered metadata

DOI

Crossref-generated metadata

Match reference to record/DOI!

Metadata?

Exact match: -  XML API (need to mark up)

Needs evaluation: - Metadata Search - REST API

Formatted reference?

Exact match: -  Simple Text Query form -  XML API (some limitations)

Needs evaluation: - Metadata Search - REST API

Needs evaluation:!-  not always exact !

-  will return approximate results!

-  will also return other stuff !

Good for: !finding approximate results, working with messy data, evaluating matches on your own!

Exact:!- field-by-field match!

- match or no match at all!

Good for: !auto-populating lists of references!

Simple Text Query form!

XML API!

• Match references to DOIs • Login required but most

queries are free • Good for reference linking

HTTPS

XML API!

<query key="CR3" enable-multiple-hits="false" forward-match="true” secondary-query="author-title"> <journal_title>Antiquity</journal_title> <author search-all-authors="true">Anderson</author> <volume>87</volume> <issue>337</issue> <first_page>879</first_page> <year>2013</year></query>

more info: https://support.crossref.org/hc/en-us/sections/202815006

XML API!

<query enable-multiple-hits="false" key="key1"> <article_title match="fuzzy">Concluding remarks</article_title> <author search-all-authors="true">Somiari</author></query>

Author / title query

XML API!

<query key="q1" enable-multiple-hits="true"> <unstructured_citation>Hungate, B. A., &amp; Hampton, H. M. (2012). Ecosystem services: Valuing ecosystems for climate. Nature Climate Change, 2(3), 151-152.</unstructured_citation></query>

Unstructured citation

OpenURL!

• Match metadata to DOIs • Free but login required

https://doi.crossref.org/openurl?issn=03770273&aulast=Walker&volume=54&spage=117&date=1983&redirect=false&pid=username:password

•  Search by title fragment, author name

•  Find works related to an ORCID

•  Search by ISSN

•  Search by grant / award number

•  Include / exclude terms (using + and !)

REST API!

• Search, filter, facet, and sample Crossref metadata • No login, no fee • Do whatever you want with the metadata:

• Search • Report on funding, publishing, author activities •  Ingest scholarly metadata •  Locate full text for content mining

All records for a prefix:http://api.crossref.org/prefixes/10.xxxx/works

All records with funder information: http://api.crossref.org/prefixes/10.xxxx/works?filter=has-funder-doi:true&rows=0

All records for a prefix with funder information:http://api.crossref.org/prefixes/10.xxxx/works?filter=has-funder-doi:true

All records with a given funder published in 2017:http://api.crossref.org/works?filter=is-update:true,from-pub-date:2017-01-01,funder:10.13039/100000001,funder:10.13039/100000050

All records with ORCIDs:https://api.crossref.org/works?filter=has-orcid:true

All records containing a given term: http://api.crossref.org/works?query=quokka

REST API (https://api.crossref.org)

I want everything!

OAI-PMH • Deposit harvester (for members) • Enhanced CMS (subscription service)

Questions? support@crossref.org

@CrossrefSupport