PubIDPubID
DO

DOI

Digital Object Identifier

The DOI system provides an actionable, persistent identifier for digital objects. PubID parses DOI names — including NIST's DOI-based standard designations such as "doi:10.6028/NIST.SP.800-53r5" — as identifiers alongside the SDO schemes.

InternationalSyntax DOI syntax is "doi:10.{prefix}/{suffix}" (case-insensitive scheme, normalized to lowercase). PubID accepts the canonical "doi:" form, the bare "10.x/suffix" name, the "DOI:" upper-scheme spelling, and the resolver-URL form on the doi.org host — all render canonical. Website →
1
Doc Types
3
Components
1
Relations
0
Stages

Document Types 1

DOI Resource

doi▼

Components 3

Structured elements that make up a DOI identifier:

Scheme
Enumeration

The "doi:" scheme token

doi:
Case-insensitive on parse (DOI: accepted); rendered lowercase
e.g.doi:
Prefix
String

The registrant prefix, always beginning 10.

10.{NNNN} — 4+ digits naming the registrant
e.g.10.6028
:prefix
Suffix
String

The registrant's opaque resource suffix

Any string; SDO designations use dotted series (NIST.SP.800-53r5)
e.g.NIST.2022-04-15.001
:suffix

PubID Algebra 1

Relationships between DOI identifiers:

RelationDescriptionSyntaxExample
URL formThe resolver URL parses and renders as the canonical DOI namedoi.org/10.{prefix}/{suffix}https://doi.org/10.1000/182