[urn] Re: [Uri-review] Re: Re: Re: Re: [EXTERNAL] Re: Request to register the glue URI scheme

[Chris Day <[e-mail]>]

Hi Brent –

I suspect you’ll have the same concerns raised by each Business Authority.

Please remove GS1 from your list as we are going through the process. I suspect Karla @ the GLEI will be following suit.

Several of the companies you mention have business models for the bulk use of their identifiers and legalise around the usage. I’m sure you’ll factor this in when you make contact.



Chris Day
Technical Business Analyst
AI & Data Sustainability
GS1 Global Office
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From: Brent Zundel <[e-mail]>
Sent: 10 July 2026 05:09
To: Dale R. Worley <[e-mail]>
Cc: Chris Day <chris.day=[e-mail]>; lars.svensson=[e-mail]; Peter Saint-Andre <[e-mail]>; Pamela Dingle <[e-mail]>; Roy T. Fielding <[e-mail]>; Ted Hardie <[e-mail]>; [e-mail]; [e-mail]; The IESG <[e-mail]>; [e-mail]; [e-mail]; Chris Inacio <[e-mail]>; Anish Karmarkar <[e-mail]>; Apoorav Trehan <[e-mail]>; Babak Jahromi (CELA) <[e-mail]>
Subject: [Uri-review] Re: [urn] Re: Re: Re: [EXTERNAL] Re: Request to register the glue URI scheme


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In response to those who suggest that it is practical to contact each business Identifier authority and persuade them each to register their own URN scheme, I present the following data set.


Business Identifier Authorities

#


Authority


Area where it operates


Identifier(s) / description link


1


Global Legal Entity Identifier Foundation (GLEIF)


Global


Legal Entity Identifier (LEI), a 20-character code for legal entities. (Home – GLEIF<https://www.gleif.org/en/about-lei/introducing-the-legal-entity-identifier-lei?utm_source=chatgpt.com>)


2


GS1


Global


Global Location Number (GLN) for legal entities, functions, physical/digital locations. (GS1<https://www.gs1.org/standards/id-keys/gln/legal-entity?utm_source=chatgpt.com>)


3


Dun & Bradstreet


Global


D-U-N-S Number, a unique nine-digit business identifier. (Dun & Bradstreet<https://www.dnb.com/en-us/smb/duns/get-a-duns.html?utm_source=chatgpt.com>)


4


Internal Revenue Service (IRS)


United States


Employer Identification Number (EIN). (IRS<https://www.irs.gov/businesses/employer-identification-number?utm_source=chatgpt.com>)


5


U.S. Securities and Exchange Commission (SEC)


United States


Central Index Key (CIK) assigned to SEC filing entities and individuals. (SEC<https://www.sec.gov/submit-filings/filer-support-resources/how-do-i-guides/look-central-index-key-cik-number?utm_source=chatgpt.com>)


6


SAM.gov / U.S. General Services Administration


United States federal procurement


Unique Entity ID, a 12-character identifier for entities doing business with the U.S. government. (SAM.gov<https://sam.gov/content/status-tracker?utm_source=chatgpt.com>)


7


Delaware Division of Corporations


Delaware, United States


Delaware entity file number / business entity registration records. (Division of Corporations<https://icis.corp.delaware.gov/ecorp/entitysearch/namesearch.aspx?utm_source=chatgpt.com>)


8


California Secretary of State


California, United States


California entity number / business entity ID assigned at registration. (California Secretary of State<https://www.sos.ca.gov/business-programs/business-entities/cbs-field-status-definitions?utm_source=chatgpt.com>)


9


Canada Revenue Agency (CRA)


Canada


Business Number (BN), a unique nine-digit business identifier. (Canada<https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/business-registration/business-number-program-account.html?utm_source=chatgpt.com>)


10


Registraire des entreprises du Québec


Québec, Canada


Québec Enterprise Number (NEQ). (Gouvernement du Québec<https://www.quebec.ca/en/businesses-and-self-employed-workers/start-entreprise/register-constitute-enterprise/learn-about-registration/quebec-enterprise-number-neq?utm_source=chatgpt.com>)


11


Ontario Business Registry / ServiceOntario


Ontario, Canada


Ontario Business Identification Number (BIN). (ontario.ca<https://www.ontario.ca/page/business/start/register-your-business-online?utm_source=chatgpt.com>)


12


Servicio de Administración Tributaria (SAT)


Mexico


Registro Federal de Contribuyentes (RFC) for legal persons. (SAT<https://www.sat.gob.mx/portal/public/tramites/inscripcion-al-rfc-pm?utm_source=chatgpt.com>)


13


Receita Federal do Brasil


Brazil


Cadastro Nacional da Pessoa Jurídica (CNPJ). (Serviços e Informações do Brasil<https://www.gov.br/pt-br/servicos/inscrever-ou-atualizar-cadastro-nacional-de-pessoas-juridicas?utm_source=chatgpt.com>)


14


ARCA / AFIP


Argentina


Clave Única de Identificación Tributaria (CUIT). (AFIP<https://www.afip.gob.ar/inscripcion/cuit-cdi/solicitud-cuit.asp?utm_source=chatgpt.com>)


15


Servicio de Impuestos Internos (SII)


Chile


Rol Único Tributario (RUT). (SII<https://www.sii.cl/contribuyentes/contribuyentes_individuales/chilenos_extranjero/rol_unico_tributario.htm?utm_source=chatgpt.com>)


16


SUNAT


Peru


Registro Único de Contribuyentes (RUC), an 11-digit taxpayer identifier. (Renta 2019<https://emprender.sunat.gob.pe/ruc/mi-ruc/inscripcion-ruc?utm_source=chatgpt.com>)


17


DIAN


Colombia


Registro Único Tributario (RUT) / Número de Identificación Tributaria (NIT). (DIAN<https://www.dian.gov.co/impuestos/RUT/Paginas/Consultas-RUT.aspx?utm_source=chatgpt.com>)


18


Servicio de Rentas Internas (SRI)


Ecuador


Registro Único de Contribuyentes (RUC). (Sri Ecuador<https://www.sri.gob.ec/ruc-personas-naturales?utm_source=chatgpt.com>)


19


Dirección Nacional de Ingresos Tributarios (DNIT/SET)


Paraguay


Registro Único de Contribuyentes (RUC). (set.gov.py<https://www.set.gov.py/web/portal-institucional/registro-%C3%BAnico-de-contribuyentes-ruc-?utm_source=chatgpt.com>)


20


Dirección General de Impuestos Internos (DGII)


Dominican Republic


Registro Nacional de Contribuyentes (RNC). (DGII<https://dgii.gov.do/cicloContribuyente/registroRNC/Paginas/default.aspx?utm_source=chatgpt.com>)


21


Superintendencia de Administración Tributaria (SAT)


Guatemala


Número de Identificación Tributaria (NIT). (Portal SAT<https://portal.sat.gob.gt/portal/solicitud-electronica-de-nit/?utm_source=chatgpt.com>)


22


Companies House


United Kingdom


Company number / Companies House registration number. (Find and Update Company Information<https://find-and-update.company-information.service.gov.uk/company-lookup/search?forward=%2Fauth-code-requests%2Fcompany%2F%7BcompanyNumber%7D%2Fconfirm&utm_source=chatgpt.com>)


23


INSEE


France


SIREN and SIRET identifiers for entities and establishments. (Insee<https://www.insee.fr/en/metadonnees/source/serie/s1020?utm_source=chatgpt.com>)


24


Kamer van Koophandel (KVK)


Netherlands


KVK number in the Dutch Business Register. (KVK<https://www.kvk.nl/en/search/?utm_source=chatgpt.com>)


25


FPS Economy / Crossroads Bank for Enterprises (CBE/KBO)


Belgium


Enterprise number and establishment-unit number. (FPS Economy<https://economie.fgov.be/en/themes/enterprises/crossroads-bank-enterprises/registration-crossroads-bank?utm_source=chatgpt.com>)


26


Danish Business Authority / Central Business Register (CVR)


Denmark


CVR number. (businessindenmark.virk.dk<https://businessindenmark.virk.dk/authorities/stat/ERST/self-service/Start_company/?utm_source=chatgpt.com>)


27


Brønnøysund Register Centre


Norway


Organisation number for legal persons. (Brønnøysundregistrene<https://www.brreg.no/en/about-us-2/our-registers/about-the-central-coordinating-register-for-legal-entities-ccr/about-the-organisation-number/?utm_source=chatgpt.com>)


28


Bolagsverket


Sweden


Organisationsnummer for companies and associations. (bolagsverket.se<https://bolagsverket.se/foretag/organisationsnummer.1207.html?utm_source=chatgpt.com>)


29


Finnish Business Information System (PRH + Tax Administration)


Finland


Business ID / Y-tunnus. (YTJ<https://www.ytj.fi/en/index/businessid.html?utm_source=chatgpt.com>)


30


e-Business Register


Estonia


Registry code for legal entities. (e-Äriregister<https://ariregister.rik.ee/eng?utm_source=chatgpt.com>)


31


Centre of Registers


Lithuania


Legal entity code in the Register of Legal Entities. (Registrų Centras<https://www.registrucentras.lt/jar/p_en/?utm_source=chatgpt.com>)


32


Companies Registration Office (CRO)


Ireland


CRO register number. (CRO<https://cro.ie/services-and-help/using-services/?utm_source=chatgpt.com>)


33


Unternehmensregister / Handelsregister


Germany


Company-register records and register numbers. (Unternehmensregister<https://www.unternehmensregister.de/de/howto/search?language=en&submitaction=language&utm_source=chatgpt.com>)


34


Firmenbuch


Austria


Firmenbuchnummer / company register number. (Business Service Portal<https://www.usp.gv.at/themen/betrieb-und-umwelt/laufender-betrieb/firmenbuch.html?utm_source=chatgpt.com>)


35


Swiss Federal Statistical Office (FSO) / UID Register


Switzerland


UID, formatted as CHE plus nine digits. (Federal Office of Civil Aviation<https://www.bfs.admin.ch/bfs/en/home/registers/enterprise-register/enterprise-identification/uid-general.html?utm_source=chatgpt.com>)


36


Registro Imprese / Italian Chambers of Commerce


Italy


Codice fiscale, Partita IVA, and REA number in business-register records. (registroimprese<https://www.registroimprese.it/codice-fiscale-p.iva-rea?utm_source=chatgpt.com>)


37


Agencia Tributaria


Spain


Número de Identificación Fiscal (NIF) for legal persons and entities. (Agencia Tributaria<https://sede.agenciatributaria.gob.es/Sede/en_gb/censos-nif-domicilio-fiscal/solicitar-nif/nif-persona-juridica-entidad.html?utm_source=chatgpt.com>)


38


IRN / Registo Nacional de Pessoas Coletivas (RNPC)


Portugal


NIPC, the legal-person identification number. (IRN<https://irn.justica.gov.pt/Servicos/Empresas-e-outras-pessoas-coletivas/Registo-Nacional-de-Pessoas-Coletivas?utm_source=chatgpt.com>)


39


Ministry of Justice / National Court Register (KRS)


Poland


KRS number for registered entities. (Ekrs<https://ekrs.ms.gov.pl/?utm_source=chatgpt.com>)


40


ARES / Czech public administration


Czechia


IČO, the Czech organization identification number. (ARES<https://ares.gov.cz/otevrena-data/?utm_source=chatgpt.com>)


41


Statistical Office / Business Register


Slovakia


IČO, the organization identification number. (Slovak Statistics<https://slovak.statistics.sk/wps/portal/ext/services/services.ico/%21ut/p/z0/04_Sj9CPykssy0xPLMnMz0vMAfIjo8ziw3wCLJycDB0N3M1DDA08_fyCQ8MsAo093Mz0g1Pz9AuyHRUBcQFCAQ%21%21/?utm_source=chatgpt.com>)


42


National Trade Register Office (ONRC)


Romania


Trade-register order number and unique registration code. (Onrc<https://www.onrc.ro/index.php/en/informatii-2/informatii-rc?utm_source=chatgpt.com>)


43


AJPES


Slovenia


Registration number for each business entity in the Slovenian Business Register. (AJPES<https://www.ajpes.si/About_AJPES/Tasks?utm_source=chatgpt.com>)


44


Australian Business Register (ABR)


Australia


Australian Business Number (ABN), an 11-digit identifier. (Australian Business Register<https://www.abr.gov.au/business-super-funds-charities/applying-abn?utm_source=chatgpt.com>)


45


Australian Securities & Investments Commission (ASIC)


Australia


Australian Company Number (ACN), a unique nine-digit company identifier. (ASIC<https://www.asic.gov.au/for-business-and-companies/companies/register-a-company/australian-company-number-acn/?utm_source=chatgpt.com>)


46


New Zealand Business Number Register


New Zealand


NZBN, a globally unique identifier for New Zealand businesses. (New Zealand Business Number<https://www.nzbn.govt.nz/?utm_source=chatgpt.com>)


47


Accounting and Corporate Regulatory Authority (ACRA)


Singapore


Unique Entity Number (UEN). (ACRA<https://www.acra.gov.sg/register/business/registering-different-business-structures/local-company/registering-via-bizfile/?utm_source=chatgpt.com>)


48


Companies Registry / Inland Revenue Department


Hong Kong


Business Registration Number (BRN) as the Unique Business Identifier. (Companies Registry<https://www.cr.gov.hk/en/electronic/e-servicesportal/e-search.htm?utm_source=chatgpt.com>)


49


National Tax Agency


Japan


Corporate Number, a 13-digit identifier. (National Tax Agency Business Number<https://www.houjin-bangou.nta.go.jp/en/setsumei/?utm_source=chatgpt.com>)


50


Ministry of Corporate Affairs (MCA)


India


Corporate Identity Number (CIN). (Ministry of Corporate Affairs<https://www.mca.gov.in/content/mca/global/en/mca/fo-llp-services/findCinFinalSingleCom.html?utm_source=chatgpt.com>)


51


Goods and Services Tax Network / GST Portal


India


GSTIN / UIN for GST-registered entities. (GST Services<https://services.gst.gov.in/services/quicklinks/searchtxp?utm_source=chatgpt.com>)


52


Suruhanjaya Syarikat Malaysia (SSM)


Malaysia


Company, business, and LLP registration numbers. (SSM<https://www.ssm.com.my/Pages/e-Search.aspx?utm_source=chatgpt.com>)


53


Online Single Submission (OSS)


Indonesia


Nomor Induk Berusaha (NIB), the Business Identification Number. (OSS RBA<https://oss.go.id/en?utm_source=chatgpt.com>)


54


Ministry of Commerce


Saudi Arabia


Commercial Registration number / commercial-registration records. (Ministry of Commerce<https://mc.gov.sa/en/eservices/Pages/ServiceDetails.aspx?sID=38&utm_source=chatgpt.com>)


55


Companies and Intellectual Property Commission (CIPC)


South Africa


Company registration number. (CIPC<https://www.cipc.co.za/?utm_source=chatgpt.com>)


56


Corporate Affairs Commission (CAC)


Nigeria


RC number / company registration records. (Corporate Affairs Commission<https://www.cac.gov.ng/services/company-search?utm_source=chatgpt.com>)


57


Kenya Revenue Authority (KRA)


Kenya


Personal Identification Number (PIN) for businesses and other organizations. (Kenya Revenue Authority<https://www.kra.go.ke/individual/individual-pin-registration/learn-about-pin/about-pin?utm_source=chatgpt.com>)


58


Ghana Revenue Authority (GRA)


Ghana


Taxpayer Identification Number (TIN) for organizations. (Ghana Revenue Authority<https://gra.gov.gh/online-tools/verify-tin/?utm_source=chatgpt.com>)


59


Corporate and Business Registration Department


Mauritius


Business Registration Number (BRN). (Companies Mauritius<https://companies.govmu.org/cbrd/wp-content/uploads/2025/10/BusinessRegistrationAct2002.pdf?utm_source=chatgpt.com>)


60


Direction Générale des Impôts / business identifier services


Morocco


ICE, IF, and RC business identifiers. (Tax Administration Morocco<https://www.tax.gov.ma/wps/portal/m.dgi.ma/Mobile/Accueil/VosTeleservices/recherche%20entreprise/recherche%20%20entreprise/%21ut/p/z1/rVLLboMwEPyV9JCjtQ5QAkfCoc2rh7Y04EvFYwG3YIixSPv3NcqFQwOqVEuW7NHsY3YHGITARNzzIla8EXGl_xGz323X81fmnh5osDep5662u4fD02ZjUzhNEnwT2HT8GzBgqVCtKiGqm4RXSLKCL-n1vaR90y0UVtih7HmK3ZJKTEuU-i5QKImt5B2O0RE8JG9TnkFkoWM4lpkTwzYzYhkxksRxXWKklmXRxF4n-Xpgd2pGku55kERvHG9uJFtjbiTX-IkCs_FskjJ0MKdhOoNea6SbXN8kBPdw6jleIBCNrLWPXv64iUcKuzmd2pv843xmnjZQIxR-KQj_30G6iiGP_rHQ_ceqJFzkDYS_ZRijY7itg9oxxTfn5PPZubzmZdUfPO_uB-JqEnk%21/dz/d5/L2dBISEvZ0FBIS9nQSEh/?utm_source=chatgpt.com>)


These are not all the same kind of identifier: some are tax IDs, some are company-register numbers, some are procurement IDs, and some are global standards/private-sector identifiers. But each row is a real authority or issuer with a public identifier description or lookup/registration page.




On Thu, Jul 9, 2026, 10:13 AM Dale R. Worley <[e-mail]<mailto:[e-mail]>> wrote:
I'm not a URI reviewer but I ran into a half-baked idea that is somewhat
aligned with the concept of GLUE.  Let me propose it to get some
feedback.

What is needed is a way to record inexact, non-authoritative, indicative
identifiers.  These identifiers, being inexact, generally aren't used
for routine data processing, but rather in exceptional situations where
a human wants to investigate the supply chain of a group of things.

There's a requirement that the URI can be put into a data field that
"expects a URI", so it has to not be confusable with defined identifier
schemes.

It seems to me that this can be solved by the "data" URI scheme, which
is designed to carry arbitrary (short) strings.  In its simplest usage,
we can carry the identifier "ship 27" by

    data:,ship%2027

(The comma is mandatory.)

Various extensions can handle non-ASCII character sets.  And as you can
see, if there was a URN available for the data field, it can be used
unambiguously instead of the data: URI.

I can easily envision that informal conventions would arise, such as
starting the string with a prefix like "foobar:" to indicate that the
remainder of the string was a "foobar" identifier.

In use, currently these identifiers would be read and interpreted by a
human, within the context of much more information about the product
that it is associated with.  But I can envision that in the future, an
AI system could do a decent job of doing such interpretation.

Dale

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