AIOSchema XMP Namespace ◈︎

AIOSchema XMP Namespace

Namespace URI: https://aioschema.org/xmp/v1/ Prefix: aioschema Version: v1 (stable) Spec reference: Specification §7.2, Appendix C

Overview

AIOSchema embeds its Core Block into XMP using this namespace. The namespace uses a stable v1 major-version designator. It does not change on AIOSchema minor version increments. The namespace URI advances only at a major version increment involving breaking structural changes.

XMP embedding applies to file formats that support XMP: JPEG, PNG, PDF, and MP4.

Usage

The Core Block is embedded under the key aioschema:manifest as a serialized JSON string:

<x:xmpmeta xmlns:x="adobe:ns:meta/">
  <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
    <rdf:Description
      xmlns:aioschema="https://aioschema.org/xmp/v1/"
      aioschema:manifest="{&quot;asset_id&quot;:...}" />
  </rdf:RDF>
</x:xmpmeta>

Field Mapping

AIOSchema Field	XMP Property	Notes
`creation_timestamp`	`xmp:CreateDate`	UTC
`camera_model`	`xmp:CreatorTool`	Concatenated Make and Model
`exposure_time`	`exif:ExposureTime`	Rational
`iso`	`exif:ISOSpeedRatings`	Integer
`software`	`xmp:CreatorTool`	String
`license`	`xmpRights:UsageTerms`	SPDX identifier
`description`	`dc:description`	Dublin Core
`ai_model_used`	`aioschema:aiModelUsed`	Custom namespace
`asset_id` (core)	`aioschema:assetId`	Custom namespace
`schema_version` (core)	`aioschema:schemaVersion`	Custom namespace
`core_fingerprint` (core)	`aioschema:coreFingerprint`	Custom namespace
`manifest_signature` (core)	`aioschema:manifestSignature`	Custom namespace
`soft_binding.fingerprint`	`aioschema:pHashFingerprint`	Custom namespace

Full mapping table: Specification Appendix C.

Hybrid Mode

For maximum durability, use hybrid mode: embed the Core Block in XMP per this namespace AND write a sidecar file per the sidecar naming convention (<filename>.<ext>.aios.json). The XMP provides in-file provenance; the sidecar survives platform metadata stripping. See Specification §8.4.