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                                                       Provisional Standard Media Type Registry

   Created
   2012-07-20

   Last Updated
   2025-12-02

   Available Formats
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   Registry Included Below

     • Provisional Standard Media Type Registry

Provisional Standard Media Type Registry

   Registration Procedure(s)

 FCFS (Organization subject to IESG Approval)

   Reference
   [RFC6838]

   Note

 This registry, unlike some other provisional IANA registries, is
 only for temporary use. Entries in this registry are either
 finalized and moved to the main media types registry or are
 abandoned and deleted. Entries in this registry are suitable for
 use for development and test purposes only.

 Media Types: [IANA registry media-types]


   Available Formats
   [IMG]
   CSV

           Media Type                                 Organization                                            Contact
   application/odm+json        CDISC                                                      [Sam_Hume]
   text/cmcd                   Consumer Technology Association (CTA)                      [Alex_Giladi]
   text/asciidoc               Eclipse Foundation AISBL                                   [Frédéric_Desbiens]
   application/json-nd         ECMA                                                       [Glen_Kleidon]
   application/cert-chain+cbor IETF                                                       [draft-yasskin-http-origin-signed-responses-07]
   application/cmw+cbor        IETF                                                       [draft-ietf-rats-msg-wrap-04]
   application/ion             IETF                                                       [Jonathan_Hohle]
   application/kb+cwt          IETF                                                       [draft-ietf-spice-sd-cwt-05]
   application/pkix-keyinfo    IETF                                                       [draft-hallambaker-mesh-udf-05]
   application/sd-cwt          IETF                                                       [draft-ietf-spice-sd-cwt-05]
   application/signed-exchange IETF                                                       [draft-yasskin-http-origin-signed-responses-07]
   application/voucher+cose    IETF                                                       [draft-ietf-anima-constrained-voucher-23]
   application/webbundle       IETF                                                       [draft-yasskin-wpack-bundled-exchanges-02]
   application/1ob             IMS Global Learning Consortium Inc.                        [Rob_Coyle]
   image/j2is                  ITU-T and ISO/IEC JTC 1                                    [ISO-IEC_JTC_1-SC_29-WG_1_Convenor]
   application/jcr-sql2        Java Community Process (JCP)                               [Julian_Reschke]
   application/jcr-xpath       Java Community Process (JCP)                               [Julian_Reschke]
   application/akn+xml         OASIS                                                      [Chet_Ensign]
   text/nfo                    Seantek                                                    [Sean_Leonard]
   application/clf+xml         Society of Motion Picture and Television Engineers (SMPTE) [Frederick_Walls]
   application/CESR            Trust Over IP Foundation                                   [Samuel_M._Smith]
   application/netcdf          Unidata                                                    [Ethan_Davis]
   application/reports+json    W3C                                                        [Douglas_Creager]
   application/rif+xml         W3C                                                        [Sandro_Hawke]
   application/won             IETF/W3C/other                                             [Roy_T._Fielding]

                                                                 Contact Information

                   ID                                Name                                  Contact URI                   Last Updated
   [Alex_Giladi]                       Alex Giladi                       mailto:alex.giladi&gmail.com                    2025-08-21
   [Chet_Ensign]                       Chet Ensign                       mailto:chet.ensign&oasis-open.org               2021-04-05
   [Douglas_Creager]                   Douglas Creager                   mailto:dcreager&google.com                      2018-06-26
   [Ethan_Davis]                       Ethan Davis                       mailto:edavis&ucar.edu                          2021-12-16
   [Frédéric_Desbiens]                 Frédéric Desbiens                 mailto:frederic.desbiens&eclipse-foundation.org 2025-07-10
   [Frederick_Walls]                   Frederick Walls                   mailto:fwalls&m.smpte.org                       2025-10-28
   [Glen_Kleidon]                      Glen Kleidon                      mailto:glenk&galkam.com.au                      2020-07-22
   [ISO-IEC_JTC_1-SC_29-WG_1_Convenor] ISO/IEC JTC 1/SC 29/WG 1 Convenor mailto:sc29-sec&itscj.ipsj.or.jp                2023-05-15
   [Jonathan_Hohle]                    Jonathan Hohle                    mailto:jonhohle&gmail.com                       2017-06-28
   [Julian_Reschke]                    Julian Reschke                    mailto:julian.reschke&greenbytes.de             2025-11-24
   [Rob_Coyle]                         Rob Coyle                         mailto:rcoyle&1edtech.org                       2023-05-11
   [Roy_T._Fielding]                   Roy T. Fielding                   mailto:fielding&gbiv.com                        2015-08-25
   [Sam_Hume]                          Sam Hume                          mailto:shume&cdisc.org                          2018-10-31
   [Samuel_M._Smith]                   Samuel M. Smith                   mailto:sam&samuelsmith.org                      2024-02-15
   [Sandro_Hawke]                      Sandro Hawke                      mailto:sandro&w3.org                            2021-01-11
   [Sean_Leonard]                      Sean Leonard                      mailto:dev+ietf&seantek.com                     2015-10-21

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