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# OIDplus Information Object GUID format

## OIDplus Information Object GUID

OIDplus automatically assigns a UUID to every object it manages. It is based on the custom UUID type (UUIDv8) which was defined in the new version of RFC 4122.

|Block| Byte | Length  | Description          |
|-----|------|---------|----------------------|
|  1  | 0-3  |  1 bit  | Reserved, must be 0.
|     |      | 31 bits | OIDplus SystemID (lower 31 bits of SHA1 of Public Key)
|  2  | 4-5  | 16 bits | Creation timestamp: Days since 01.01.1970 00:00 GMT; 0 if unknown. Max possible: 0xFFFF = 06 June 2149
|  3  | 6-7  |  4 bits | UUID Version, must be 0x8 (Custom UUID)
|     |      | 12 bits | Reserved, must be 0x0000
|  4  | 8-9  |  2 bits | UUID Variant, must be 0b10 (RFC 4122)
|     |      | 14 bits | Namespace (lower 14 bits of SHA1 of Namespace OID)
|  5  |10-15 | 48 bits | Object name (lower 48 bits of SHA1 of canonical object name)

### Example

The object **java:com.example**, created 30 September 2018 on system #1855139287 has the following UUID:

    6e932dd7-458c-8000-b9e9-c1e3894d1105

It contains the information as follows:

|Block| Description       | Value          | Interpretation |
|-----|-------------------|----------------|----------------|
|  1  | System ID         | 0x6E932DD7     | SHA1(PubKey) & 0x7FFF.FFFF = 1855139287
|  2  | Timestamp         | 0x458C         | 30 September 2018 (17804 days since 1 January 1970)
|  3  | Reserved+Version  | 0x8000         | 0x0000 \| 0x8000
|  4  | Namespace+Variant | 0xB9E9         | SHA1('1.3.6.1.4.1.37476.2.5.2.4.8.6') & 0x3FFF \| 0x8000
|  5  | Object Name       | 0xC1E3894D1105 | SHA1('com.example') & 0xFFFF.FFFF.FFFF


## OIDplus System GUID

Every OIDplus system can be identified by a UUID generated using this schema based on the Information Object UUID.

|Block| Byte | Length  | Description          |
|-----|------|---------|----------------------|
|  1  | 0-3  |  1 bit  | Reserved, must be 0.
|     |      | 31 bits | OIDplus SystemID (lower 31 bits of SHA1 of Public Key)
|  2  | 4-5  | 16 bits | Reserved for system creation timestamp. Currently 0 because OIDplus does not track the timestamp of a new system.
|  3  | 6-7  |  4 bits | UUID Version, must be 0x8 (Custom UUID)
|     |      | 12 bits | Reserved, must be 0x0000
|  4  | 8-9  |  2 bits | UUID Variant, must be 0b10 (RFC 4122)
|     |      | 14 bits | Namespace: Fix value of 0.
|  5  |10-15 | 48 bits | Object name: Fix 0x1890afd80709 (lower 48 bits of SHA1 of an empty string)

### Example

The system #1855139287 has the following UUID:

    6e932dd7-0000-8000-8000-1890afd80709

It contains the information as follows:

|Block| Description       | Value          | Interpretation |
|-----|-------------------|----------------|----------------|
|  1  | System ID         | 0x6E932DD7     | SHA1(PubKey) & 0x7FFF.FFFF = 1855139287
|  2  | Timestamp         | 0x0000         | Unknown
|  3  | Reserved+Version  | 0x8000         | 0x0000 \| 0x8000
|  4  | Namespace+Variant | 0x8000         | 0x0000 \| 0x8000
|  5  | Object Name       | 0xC1E3894D1105 | SHA1('') & 0xFFFF.FFFF.FFFF


## Known namespaces

| Vendor       |Namespace| OID                            | SHA1 hash | Block 4| Notes        |
|--------------|---------|--------------------------------|-----------|--------|--------------|
| n/a          | n/a     | n/a                            | n/a       | 0x8000 | System
| ViaThinkSoft | doi     | 1.3.6.1.4.1.37476.2.5.2.4.8.1  | 0x...2259 | 0xA259 |
| ViaThinkSoft | gs1     | 1.3.6.1.4.1.37476.2.5.2.4.8.2  | 0x...021E | 0x821E |
| ViaThinkSoft | guid    | 1.3.6.1.4.1.37476.2.5.2.4.8.3  | 0x...B924 | 0xB924 | In OIDplus, only the UUID itself will be shown
| ViaThinkSoft | ipv4    | 1.3.6.1.4.1.37476.2.5.2.4.8.4  | 0x...5AF9 | 0x9AF9 |
| ViaThinkSoft | ipv6    | 1.3.6.1.4.1.37476.2.5.2.4.8.5  | 0x...55DB | 0x95DB |
| ViaThinkSoft | java    | 1.3.6.1.4.1.37476.2.5.2.4.8.6  | 0x...79E9 | 0xB9E9 |
| ViaThinkSoft | oid     | 1.3.6.1.4.1.37476.2.5.2.4.8.7  | 0x...66D3 | 0xA6D3 |
| ViaThinkSoft | other   | 1.3.6.1.4.1.37476.2.5.2.4.8.8  | 0x...D068 | 0x9068 |
| ViaThinkSoft | domain  | 1.3.6.1.4.1.37476.2.5.2.4.8.9  | 0x...D982 | 0x9982 |
| ViaThinkSoft | fourcc  | 1.3.6.1.4.1.37476.2.5.2.4.8.10 | 0x...B648 | 0xB648 |
| ViaThinkSoft | aid     | 1.3.6.1.4.1.37476.2.5.2.4.8.11 | 0x...2571 | 0xA571 |
| ViaThinkSoft | php     | 1.3.6.1.4.1.37476.2.5.2.4.8.12 | 0x...A6F0 | 0xA6F0 |
| ViaThinkSoft | mac     | 1.3.6.1.4.1.37476.2.5.2.4.8.13 | 0x...91CD | 0x91CD |
| Frdlweb | circuit | 1.3.6.1.4.1.37553.8.1.8.8.53354196964.27255728261 | 0x...EBD5 | 0xABD5 |
| Frdlweb | ns      | 1.3.6.1.4.1.37476.9000.108.19361.856              | 0x...AF2D | 0xAF2D |
| Frdlweb | pen     | 1.3.6.1.4.1.37553.8.1.8.8.53354196964.32927       | 0x...D31E | 0x931E |
| Frdlweb | uri     | 1.3.6.1.4.1.37553.8.1.8.8.53354196964.39870       | 0x...AA05 | 0xAA05 |
| Frdlweb | web+fan | 1.3.6.1.4.1.37553.8.1.8.8.53354196964.1958965295  | 0x...F077 | 0xB077 |
<!--
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.14 | 0x...AB3E | 0xAB3E |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.15 | 0x...4779 | 0x8779 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.16 | 0x...2318 | 0xA318 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.17 | 0x...1412 | 0x9412 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.18 | 0x...76C5 | 0xB6C5 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.19 | 0x...D43A | 0x943A |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.20 | 0x...1DE3 | 0x9DE3 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.21 | 0x...9FF7 | 0x9FF7 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.22 | 0x...12F6 | 0x92F6 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.23 | 0x...3B1D | 0xBB1D |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.24 | 0x...0617 | 0x8617 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.25 | 0x...A952 | 0xA952 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.26 | 0x...C0DA | 0x80DA |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.27 | 0x...FAC8 | 0xBAC8 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.28 | 0x...E993 | 0xA993 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.29 | 0x...44CA | 0x84CA |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.30 | 0x...70DA | 0xB0DA |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.31 | 0x...BCB0 | 0xBCB0 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.32 | 0x...23AB | 0xA3AB |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.33 | 0x...FD1D | 0xBD1D |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.34 | 0x...812A | 0x812A |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.35 | 0x...CF70 | 0x8F70 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.36 | 0x...C724 | 0x8724 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.37 | 0x...D6E3 | 0x96E3 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.38 | 0x...DFAF | 0x9FAF |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.39 | 0x...C521 | 0x8521 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.40 | 0x...E8B8 | 0xA8B8 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.41 | 0x...D0C0 | 0x90C0 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.42 | 0x...ECF3 | 0xACF3 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.43 | 0x...63D2 | 0xA3D2 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.44 | 0x...BA72 | 0xBA72 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.45 | 0x...348B | 0xB48B |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.46 | 0x...C66A | 0x866A |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.47 | 0x...0788 | 0x8788 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.48 | 0x...C48F | 0x848F |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.49 | 0x...41ED | 0x81ED |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.50 | 0x...F7C8 | 0xB7C8 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.51 | 0x...B898 | 0xB898 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.52 | 0x...134D | 0x934D |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.53 | 0x...0DBF | 0x8DBF |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.54 | 0x...84FF | 0x84FF |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.55 | 0x...3CDF | 0xBCDF |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.56 | 0x...FDCF | 0xBDCF |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.57 | 0x...6988 | 0xA988 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.58 | 0x...EA2B | 0xAA2B |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.59 | 0x...763A | 0xB63A |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.60 | 0x...81B7 | 0x81B7 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.61 | 0x...A5E8 | 0xA5E8 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.62 | 0x...9D2A | 0x9D2A |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.63 | 0x...10B6 | 0x90B6 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.64 | 0x...554F | 0x954F |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.65 | 0x...9DA2 | 0x9DA2 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.66 | 0x...E810 | 0xA810 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.67 | 0x...0CCA | 0x8CCA |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.68 | 0x...3D0E | 0xBD0E |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.69 | 0x...4599 | 0x8599 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.70 | 0x...7152 | 0xB152 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.71 | 0x...E6E0 | 0xA6E0 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.72 | 0x...25FE | 0xA5FE |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.73 | 0x...D608 | 0x9608 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.74 | 0x...AECC | 0xAECC |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.75 | 0x...3D11 | 0xBD11 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.76 | 0x...B4B4 | 0xB4B4 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.77 | 0x...5967 | 0x9967 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.78 | 0x...772E | 0xB72E |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.79 | 0x...B8CE | 0xB8CE |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.80 | 0x...797A | 0xB97A |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.81 | 0x...D21C | 0x921C |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.82 | 0x...DA41 | 0x9A41 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.83 | 0x...C9F6 | 0x89F6 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.84 | 0x...FDF1 | 0xBDF1 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.85 | 0x...CEE4 | 0x8EE4 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.86 | 0x...8A32 | 0x8A32 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.87 | 0x...4D26 | 0x8D26 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.88 | 0x...EBB2 | 0xABB2 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.89 | 0x...E8D4 | 0xA8D4 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.90 | 0x...6500 | 0xA500 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.91 | 0x...7A8F | 0xBA8F |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.92 | 0x...F322 | 0xB322 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.93 | 0x...B75E | 0xB75E |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.94 | 0x...3F4D | 0xBF4D |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.95 | 0x...D7FB | 0x97FB |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.96 | 0x...A1FA | 0xA1FA |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.97 | 0x...0490 | 0x8490 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.98 | 0x...6C91 | 0xAC91 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.99 | 0x...4410 | 0x8410 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.100 | 0x...B089 | 0xB089 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.101 | 0x...38BA | 0xB8BA |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.102 | 0x...22BC | 0xA2BC |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.103 | 0x...CDD8 | 0x8DD8 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.104 | 0x...971F | 0x971F |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.105 | 0x...1C69 | 0x9C69 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.106 | 0x...C456 | 0x8456 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.107 | 0x...F064 | 0xB064 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.108 | 0x...9490 | 0x9490 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.109 | 0x...7186 | 0xB186 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.110 | 0x...A9BD | 0xA9BD |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.111 | 0x...1338 | 0x9338 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.112 | 0x...BE9E | 0xBE9E |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.113 | 0x...3B4F | 0xBB4F |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.114 | 0x...CFFE | 0x8FFE |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.115 | 0x...D37F | 0x937F |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.116 | 0x...125F | 0x925F |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.117 | 0x...B781 | 0xB781 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.118 | 0x...9F3E | 0x9F3E |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.119 | 0x...A69B | 0xA69B |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.120 | 0x...144B | 0x944B |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.121 | 0x...B548 | 0xB548 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.122 | 0x...3AB4 | 0xBAB4 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.123 | 0x...4181 | 0x8181 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.124 | 0x...5CB8 | 0x9CB8 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.125 | 0x...765A | 0xB65A |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.126 | 0x...814C | 0x814C |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.127 | 0x...142E | 0x942E |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.128 | 0x...BD4A | 0xBD4A |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.129 | 0x...173E | 0x973E |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.130 | 0x...21C0 | 0xA1C0 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.131 | 0x...95B8 | 0x95B8 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.132 | 0x...87D3 | 0x87D3 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.133 | 0x...271D | 0xA71D |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.134 | 0x...8763 | 0x8763 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.135 | 0x...F354 | 0xB354 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.136 | 0x...68A5 | 0xA8A5 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.137 | 0x...337F | 0xB37F |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.138 | 0x...E001 | 0xA001 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.139 | 0x...1F59 | 0x9F59 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.140 | 0x...00D0 | 0x80D0 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.141 | 0x...A375 | 0xA375 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.142 | 0x...9794 | 0x9794 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.143 | 0x...0A70 | 0x8A70 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.144 | 0x...010D | 0x810D |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.145 | 0x...633D | 0xA33D |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.146 | 0x...2CD9 | 0xACD9 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.147 | 0x...410C | 0x810C |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.148 | 0x...2900 | 0xA900 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.149 | 0x...4141 | 0x8141 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.150 | 0x...A350 | 0xA350 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.151 | 0x...E8E0 | 0xA8E0 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.152 | 0x...4BE1 | 0x8BE1 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.153 | 0x...0B25 | 0x8B25 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.154 | 0x...D933 | 0x9933 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.155 | 0x...7917 | 0xB917 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.156 | 0x...1C1A | 0x9C1A |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.157 | 0x...9C25 | 0x9C25 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.158 | 0x...1D24 | 0x9D24 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.159 | 0x...B922 | 0xB922 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.160 | 0x...69CC | 0xA9CC |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.161 | 0x...9A8A | 0x9A8A |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.162 | 0x...D284 | 0x9284 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.163 | 0x...1944 | 0x9944 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.164 | 0x...A074 | 0xA074 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.165 | 0x...51D1 | 0x91D1 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.166 | 0x...C3F6 | 0x83F6 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.167 | 0x...731E | 0xB31E |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.168 | 0x...B4EF | 0xB4EF |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.169 | 0x...EF93 | 0xAF93 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.170 | 0x...A3E9 | 0xA3E9 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.171 | 0x...32DC | 0xB2DC |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.172 | 0x...3930 | 0xB930 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.173 | 0x...0FC1 | 0x8FC1 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.174 | 0x...5131 | 0x9131 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.175 | 0x...F5F4 | 0xB5F4 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.176 | 0x...4B63 | 0x8B63 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.177 | 0x...F1CD | 0xB1CD |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.178 | 0x...9364 | 0x9364 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.179 | 0x...40AB | 0x80AB |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.180 | 0x...A182 | 0xA182 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.181 | 0x...FC4A | 0xBC4A |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.182 | 0x...DF14 | 0x9F14 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.183 | 0x...DA04 | 0x9A04 |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.184 | 0x...7B3E | 0xBB3E |
| ViaThinkSoft | (Unused) | 1.3.6.1.4.1.37476.2.5.2.4.8.185 | 0x...4854 | 0x8854 |
-->

### Notes for new object type plugins

(1) When new object types are developed, the plugin author should check
if their "Block 4" hash based on their plugin OID conflicts with the
"Block 4" hashes of plugins from other vendors, and consider
using a different plugin OID in that case.
Between ViaThinkSoft OIDs, the lowest collision is `1.3.6.1.4.1.37476.2.5.2.4.8.186`
which collides with `1.3.6.1.4.1.37476.2.5.2.4.8.48`.

Add this line to your baseconfig-file (userdata/baseconfig/config.inc.php) to
automatically let OIDplus check all third-party object type plugins for
hash conflicts:

    OIDplus::baseConfig()->setValue('DEBUG', true);

As an alternative, the following script can help you check
(and generate a new line for this table):

    <?php

        $plugin_oid = '2.999'; // your plugin-oid here

        if (!str_starts_with($plugin_oid, '1.3.6.1.4.1.37476.2.5.2.4.8.')) {
                $coll = [];
                for ($i = 1; $i <= 185; $i++) {
                        $block4 = dechex(hexdec(substr(sha1('1.3.6.1.4.1.37476.2.5.2.4.8.'.$i), -4)) & 0x3FFF | 0x8000);
                        $coll[] = $block4;
                }
                $coll[] = dechex(0x8000); // System
                $block4 = dechex(hexdec(substr(sha1($plugin_oid), -4)) & 0x3FFF | 0x8000);
                if (in_array($block4, $coll)) {
                        echo "HASH CONFLICT\n";
                } else {
                        echo "| (Author) | (NSName) | $plugin_oid | 0x...".strtoupper(substr(sha1($plugin_oid), -4))." | 0x".strtoupper($block4)." |\n";
                }
        } else {
                $block4 = dechex(hexdec(substr(sha1($plugin_oid), -4)) & 0x3FFF | 0x8000);
                echo "| ViaThinkSoft | (NSName) | $plugin_oid | 0x...".strtoupper(substr(sha1($plugin_oid), -4))." | 0x".strtoupper($block4)." |\n";
        }

    ?>

(2) After the release of the object type plugin, please extend this table.

(3) Please also change the array with known namespaces at "UUID Utils":
https://github.com/danielmarschall/uuid_mac_utils/blob/master/includes/uuid_utils.inc.php

This allows the interpretation of OIDplus Information Object UUIDs using this tool:
https://misc.daniel-marschall.de/tools/uuid_mac_decoder/interprete_uuid.php?uuid=6e932dd7-458c-8000-b9e9-c1e3894d1105