Provisional Standard Media Type Registry

Last Updated
Available Formats



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Registry included below

Provisional Standard Media Type Registry

Registration Procedure(s)
FCFS (Organization subject to IESG Approval)
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.
Available Formats

Media Type Organization Contact
application/atsc-dynamic-event-message ATSC [ATSC_Editor]
application/odm+json CDISC [Sam_Hume]
model/mtl DICOM Standards Committee [Luiza_Kowalczyk]
model/obj DICOM Standards Committee [Luiza_Kowalczyk]
application/dlmscosem DLMS User Association, International Electrotechnical Commission (IEC) [Michael_Buss]
application/cert-chain+cbor IETF [draft-yasskin-http-origin-signed-responses]
application/ion IETF [Jonathan_Hohle]
application/pkix-keyinfo IETF [draft-hallambaker-mesh-udf]
application/signed-exchange IETF [draft-yasskin-http-origin-signed-responses]
application/webbundle IETF [draft-yasskin-wpack-bundled-exchanges]
application/akn+xml OASIS [Chet_Ensign]
text/nfo Seantek [Sean_Leonard]
application/reports+json W3C [Douglas_Creager]
application/td+json W3C [Matthias_Kovatsch]
application/wasm W3C [Bradley_Nelson]
application/won IETF/W3C/other [Roy_T._Fielding]


ID Name Contact URI Last Updated
[ATSC_Editor] Editor, Advanced Television Systems Committee mailto:jwhitaker& 2019-10-09
[Bradley_Nelson] Bradley Nelson mailto:bradnelson& 2018-03-19
[Chet_Ensign] Chet Ensign mailto:chet.ensign& 2018-07-05
[Douglas_Creager] Douglas Creager mailto:dcreager& 2018-06-26
[Jonathan_Hohle] Jonathan Hohle mailto:jonhohle& 2017-06-28
[Luiza_Kowalczyk] Luiza Kowalczyk mailto:LKowalczyk& 2019-12-23
[Matthias_Kovatsch] Matthias Kovatsch mailto:w3c& 2019-12-10
[Michael_Buss] Michael Buss mailto:technical& 2019-10-04
[Roy_T._Fielding] Roy T. Fielding mailto:fielding& 2015-08-25
[Sam_Hume] Sam Hume mailto:shume& 2018-10-31
[Sean_Leonard] Sean Leonard mailto:dev+ietf& 2015-10-21