Extension Registry ◈︎

AIOSchema Extension Registry

Version: v0.5.6 Status: Active Maintained by: Ovidiu Ancuta (founder-controlled phase) Governance: See Registry Governance

This registry lists all officially registered AIOSchema extension fields. Only fields listed here may appear in conforming manifests without a vendor prefix. Fields not listed here MUST use a registered x-<vendor>- prefix.

Official Extension Fields

Field	Type	Since	Status	Description
`camera_model`	String	v0.3	Active	Device make and model
`exposure_time`	String	v0.3	Active	Shutter speed (e.g. `"1/120"`)
`iso`	Integer	v0.3	Active	ISO sensitivity value
`software`	String	v0.3	Active	Software used to create or edit the asset
`ai_model_used`	String or null	v0.4	Active	AI model identifier; null if not AI-generated
`ai_model_version`	String or null	v0.4	Active	AI model version string
`license`	String	v0.4	Active	SPDX identifier (e.g. `"CC-BY-4.0"`)
`soft_binding`	Object	v0.4	Active	pHash soft binding record
`compliance_level`	Integer	v0.3.1	Active	Self-declared conformance level (1, 2, or 3). Informational.
`asset_name`	String	v0.5	Active	Original filename or human-readable asset name
`asset_type`	String	v0.5	Active	Asset type (e.g. `"document"`, `"image"`, `"video"`)
`description`	String	v0.5.6	Active	Human-readable provenance context note. Maximum 256 characters.
`ai_declaration`	Object	v0.5.6	Active	Structured AI involvement disclosure
`compliance_eu_art50`	Object	v0.5.6	Active	EU AI Act Art. 50(4) editorial exemption record
`public_key`	String	v0.5.6	Active	Base64-encoded Ed25519 public key for self-contained verification

Full field definitions are in the Field Reference Guide and Specification v0.5.6.

Registered Vendor Prefixes

| Prefix | Maintainer | Status | Since | Notes | |—|—|—|—|—|

Reserved Field Names

The following names are reserved for planned future versions. Implementations MUST NOT use these names for custom fields.

Field	Target version	Description
`creator_keyref`	v0.6	Key reference for rotation tracking
`extensions_version`	v0.6	Extensions block schema version
`rights`	v0.6	Structured rights and AI usage declarations

Planned Compliance Keys

The following compliance_* keys are reserved for future legislation. No fields are defined yet.

Key	Legislation
`compliance_ca_sb1047`	California SB 1047 (if enacted)
`compliance_can_aida`	Canada Artificial Intelligence and Data Act

Registration

To propose a new official extension field or register a vendor prefix, use the proposal process.

All vendor prefix registrations require a registry license. Details at Registry Governance and Licensing.