Specification catalogue

Find the structure your AI needs.

A live registry of versioned meta-model specifications and clearly labelled research profiles. Search by family, category, industry, domain, name or tags; storage formats and interfaces remain independent.

Start new Context World How composing works

The catalogue holds the whole Thing Registry: every registered thing an agent might meet, marked TODO until its governed specification is written. AISMM, PLMM and prior World Model assemblies remain here as examples.

206 134 meta-models Priority first

Thing RegistryGenerated draft

2026 In Flanders Fields. From Middelkerke to Wevelgem

vr.tr.2026-in-flanders-fields-from-middelkerke-to-wevelgem

Activities and processes ACT.EVT

Thing RegistryGenerated draft

2026 Ronde van Brugge

vr.tr.2026-ronde-van-brugge

Activities and processes ACT.EVT

Thing RegistryGenerated draft

2026 Tour Auvergne-Rhône-Alpes

vr.tr.2026-tour-auvergne-rh-ne-alpes

Activities and processes ACT.EVT

Thing RegistryGenerated draft

2026 Tour de Suisse

vr.tr.2026-tour-de-suisse

Activities and processes ACT.EVT

Thing RegistryGenerated draft

20×138mmB

vr.tr.20-138mmb

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

24 Hours of Le Mans (motorcycle race)

vr.tr.24-hours-of-le-mans-motorcycle-race

Activities and processes ACT.EVT

Thing RegistryGenerated draft

2N3055

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

2nd month

vr.tr.2nd-month

Information and virtual systems INF.KNW

Thing RegistryGenerated draft

2S12 Sani

vr.tr.2s12-sani

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3'-hydroxycinnamic acid

vr.tr.3-hydroxycinnamic-acid

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3,3',5-Triiodothyronamine

vr.tr.3-3-5-triiodothyronamine

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3,4-dihydroxymandelic acid

vr.tr.3-4-dihydroxymandelic-acid

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3-amino-5-nitrosalicylic acid

vr.tr.3-amino-5-nitrosalicylic-acid

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3-aminoisobutyric acid

vr.tr.3-aminoisobutyric-acid

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone

vr.tr.3-chloro-4-dichloromethyl-5-hydroxy-2-5h-furanone

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3-dehydroquinic acid

vr.tr.3-dehydroquinic-acid

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3-deoxy-α-D-manno-oct-2-ulopyranosonic acid

vr.tr.3-deoxy-d-manno-oct-2-ulopyranosonic-acid

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3-Hydroxybenzaldehyde

vr.tr.3-hydroxybenzaldehyde

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3-hydroxyisobutyryl-CoA

vr.tr.3-hydroxyisobutyryl-coa

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3-mercapto-3-methyl-1-butanol

vr.tr.3-mercapto-3-methyl-1-butanol

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3-methoxy-4-hydroxyphenylglycol

vr.tr.3-methoxy-4-hydroxyphenylglycol

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3-methylfentanyl

vr.tr.3-methylfentanyl

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3-oxovaleric acid

vr.tr.3-oxovaleric-acid

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

3. deild karla

vr.tr.3-deild-karla

Activities and processes ACT.EVT

Thing RegistryGenerated draft

3rd month

vr.tr.3rd-month

Information and virtual systems INF.KNW

Thing RegistryGenerated draft

3x3 basketball at the Summer Olympics

vr.tr.3x3-basketball-at-the-summer-olympics

Activities and processes ACT.ACT

Thing RegistryGenerated draft

4 Hours of Shanghai

vr.tr.4-hours-of-shanghai

Activities and processes ACT.EVT

Thing RegistryGenerated draft

4,4'-biphenyldiol

vr.tr.4-4-biphenyldiol

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

4-6-2

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

4-dimethylaminophenylpentazole

vr.tr.4-dimethylaminophenylpentazole

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

4-hydroxybenzyl alcohol

vr.tr.4-hydroxybenzyl-alcohol

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

4-methoxy-N-methylamphetamine

vr.tr.4-methoxy-n-methylamphetamine

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

4-nitrophenyl phosphate

vr.tr.4-nitrophenyl-phosphate

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

4-phenyl-4-(1-piperidinyl)cyclohexanol

vr.tr.4-phenyl-4-1-piperidinyl-cyclohexanol

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

4-phenylpiperidine

vr.tr.4-phenylpiperidine

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

4-pyridone

vr.tr.4-pyridone

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

4-tert-butylcatechol

vr.tr.4-tert-butylcatechol

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

4th month

vr.tr.4th-month

Information and virtual systems INF.KNW

Thing RegistryGenerated draft

5 yen coin

vr.tr.5-yen-coin

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

5.5 Metre

vr.tr.5-5-metre

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

505

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

60 mm mortar M2

vr.tr.60-mm-mortar-m2

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

6L6

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

7-aminoactinomycin D

vr.tr.7-aminoactinomycin-d

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

7.5 cm Feldkanone 16 neuer Art

vr.tr.7-5-cm-feldkanone-16-neuer-art

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

7.5×55mm Swiss

vr.tr.7-5-55mm-swiss

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

76 mm regimental gun M1927

vr.tr.76-mm-regimental-gun-m1927

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

7th month

vr.tr.7th-month

Information and virtual systems INF.KNW

Thing RegistryGenerated draft

7×57mm Mauser

vr.tr.7-57mm-mauser

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

8-aminoquinoline

vr.tr.8-aminoquinoline

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

82-BM-37

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

83rd Guards Airborne Brigade

vr.tr.83rd-guards-airborne-brigade

Society, people and institutions SOC.ORG

Thing RegistryGenerated draft

8×50mmR Mannlicher

vr.tr.8-50mmr-mannlicher

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

9,10-diphenylanthracene

vr.tr.9-10-diphenylanthracene

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

9-hydroxyfluorene

vr.tr.9-hydroxyfluorene

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

9×23mm Steyr

vr.tr.9-23mm-steyr

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

[1,1'-bis(diphenylphosphino)ferrocene]palladium(II) dichloride

vr.tr.1-1-bis-diphenylphosphino-ferrocene-palladium-ii-dichloride

Physical world and living systems PHY.MAT

Thing RegistryGenerated draft

A 16

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

A 17 Möwe

vr.tr.a-17-m-we

Physical world and living systems PHY.OBJ

Thing RegistryGenerated draft

A-22 Foxbat

vr.tr.a-22-foxbat

Physical world and living systems PHY.OBJ