[media-types] Re: [IANA #1455192] application/vnd.bl ockfact.facts registration request

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Approved.

-MSK

On Tue, Jun 30, 2026 at 8:44=E2=80=AFPM Amanda Baber via RT <
[email protected]> wrote:

> Hi Murray,
>
> Can you review this one for us by July 14th? It looks like Alexey reviewe=
d
> last year's vnd.blockfact registrations, but I just gave him five new
> requests yesterday.
>
> thanks,
> Amanda
>
> =3D=3D=3D=3D=3D
>
> Name: Egbert von Frankenberg
>
> Email: [email protected]
>
> Media type name: application
>
> Media subtype name: vnd.blockfact.facts
>
> Required parameters: N/A
>
> Optional parameters: version =E2=80=94 Format version number (currently "=
2").
> stream-id =E2=80=94 UUID identifying the specific stream session.
>
> Encoding considerations: binary
>
> Security considerations: The .facts format contains cryptographic
> provenance data, including blockchain transaction hashes, zero-knowledge
> proof references, and digital signatures. The format itself does not
> execute code. Provenance claims should be independently verified against
> the referenced blockchain. Wallet addresses are pseudonymous identifiers.
>
> Interoperability considerations: The format uses the same extension block
> architecture as the related formats image/vnd.blockfact.facti,
> audio/vnd.blockfact.facta, and video/vnd.blockfact.factv. Magic bytes (0x=
FA
> 0x53 0x41 0x00) enable reliable format detection.
>
> Published specification:
> https://github.com/BlockFact/facts-format-specs/blob/main/SPECIFICATION.m=
d
>
> Applications which use this media: BlockFact mobile application (iOS,
> Android), BlockFact NDI plugin, BlockFact Pro SDK, broadcast automation
> systems, law enforcement bodycam recording systems.
>
> Fragment identifier considerations: None Defined
>
> Restrictions on usage: None
>
> Provisional registration? (standards tree only): No
>
> Additional information:
>
> 1. Deprecated alias names for this type: N/A
> 2. Magic number(s): 0xFA 0x53 0x41 0x00
> 3. File extension(s): .facts
> 4. Macintosh file type code: FACTS
> 5. Object Identifiers: N/A
>
> General Comments:
>
> Person to contact for further information:
>
> 1. Name: Egbert von Frankenberg
> 2. Email: [email protected]
>
> Intended usage: COMMON
>
> Author/Change controller: Egbert von Frankenberg, BlockFact Technologies
> Inc
>

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<div dir=3D"ltr">Approved.<div><br></div><div>-MSK</div></div><br><div clas=
s=3D"gmail_quote gmail_quote_container"><div dir=3D"ltr" class=3D"gmail_att=
r">On Tue, Jun 30, 2026 at 8:44=E2=80=AFPM Amanda Baber via RT &lt;<a href=
=3D"mailto:[email protected]">[email protected]</a>&gt; w=
rote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0p=
x 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi Murray,=
<br>
<br>
Can you review this one for us by July 14th? It looks like Alexey reviewed =
last year&#39;s vnd.blockfact registrations, but I just gave him five new r=
equests yesterday.<br>
<br>
thanks,<br>
Amanda<br>
<br>
=3D=3D=3D=3D=3D<br>
<br>
Name: Egbert von Frankenberg<br>
<br>
Email: <a href=3D"mailto:[email protected]" target=3D"_blank">egbert@bloc=
kfact.io</a><br>
<br>
Media type name: application<br>
<br>
Media subtype name: vnd.blockfact.facts<br>
<br>
Required parameters: N/A<br>
<br>
Optional parameters: version =E2=80=94 Format version number (currently &qu=
ot;2&quot;). stream-id =E2=80=94 UUID identifying the specific stream sessi=
on.<br>
<br>
Encoding considerations: binary<br>
<br>
Security considerations: The .facts format contains cryptographic provenanc=
e data, including blockchain transaction hashes, zero-knowledge proof refer=
ences, and digital signatures. The format itself does not execute code. Pro=
venance claims should be independently verified against the referenced bloc=
kchain. Wallet addresses are pseudonymous identifiers.<br>
<br>
Interoperability considerations: The format uses the same extension block a=
rchitecture as the related formats image/vnd.blockfact.facti, audio/vnd.blo=
ckfact.facta, and video/vnd.blockfact.factv. Magic bytes (0xFA 0x53 0x41 0x=
00) enable reliable format detection.<br>
<br>
Published specification: <a href=3D"https://github.com/BlockFact/facts-form=
at-specs/blob/main/SPECIFICATION.md" rel=3D"noreferrer" target=3D"_blank">h=
ttps://github.com/BlockFact/facts-format-specs/blob/main/SPECIFICATION.md</=
a><br>
<br>
Applications which use this media: BlockFact mobile application (iOS, Andro=
id), BlockFact NDI plugin, BlockFact Pro SDK, broadcast automation systems,=
 law enforcement bodycam recording systems.<br>
<br>
Fragment identifier considerations: None Defined<br>
<br>
Restrictions on usage: None<br>
<br>
Provisional registration? (standards tree only): No<br>
<br>
Additional information:<br>
<br>
1. Deprecated alias names for this type: N/A<br>
2. Magic number(s): 0xFA 0x53 0x41 0x00<br>
3. File extension(s): .facts<br>
4. Macintosh file type code: FACTS<br>
5. Object Identifiers: N/A<br>
<br>
General Comments:<br>
<br>
Person to contact for further information:<br>
<br>
1. Name: Egbert von Frankenberg<br>
2. Email: <a href=3D"mailto:[email protected]" target=3D"_blank">egbert@b=
lockfact.io</a><br>
<br>
Intended usage: COMMON<br>
<br>
Author/Change controller: Egbert von Frankenberg, BlockFact Technologies In=
c<br>
</blockquote></div>

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