{
"now": 1786492800000,
"documents": [
{
"name": "ids.json as json",
"file": "ids.json",
"fileType": "json",
"expected": [
{
"kind": "uuid",
"value": "f47ac10b-58cc-4372-a567-0e02b2c3d479",
"line": 3,
"column": 12,
"key": "service.id",
"valid": true,
"version": 4,
"variant": "rfc4122"
},
{
"kind": "uuid",
"value": "019ff344-cc00-7abc-8def-0123456789ab",
"line": 4,
"column": 19,
"key": "service.requestId",
"valid": true,
"version": 7,
"variant": "rfc4122",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "ulid",
"value": "01KZSM9K00ABCDEFGH12345678",
"line": 7,
"column": 14,
"key": "session.ulid",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "nanoid",
"value": "V1StGXR8_Z5jdHi6B-myT",
"line": 8,
"column": 16,
"key": "session.nanoId",
"valid": true
},
{
"kind": "objectid",
"value": "6a7bb780a1b2c3d4e5f60718",
"line": 11,
"column": 15,
"key": "documents.[0]._id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "snowflake",
"value": "1536886938009600000",
"line": 13,
"column": 30,
"key": "discord.channel_id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "uuid",
"value": "00000000-0000-0000-0000-000000000000",
"line": 14,
"column": 19,
"key": "placeholder",
"valid": false,
"refused": "nil_or_max",
"detail": "the nil UUID: 128 zero bits, which RFC 9562 defines as naming nothing"
}
]
},
{
"name": "ids.yaml as yaml",
"file": "ids.yaml",
"fileType": "yaml",
"expected": [
{
"kind": "uuid",
"value": "f47ac10b-58cc-4372-a567-0e02b2c3d479",
"line": 2,
"column": 7,
"key": "service.id",
"valid": true,
"version": 4,
"variant": "rfc4122"
},
{
"kind": "uuid",
"value": "019ff344-cc00-7abc-8def-0123456789ab",
"line": 3,
"column": 14,
"key": "service.requestId",
"valid": true,
"version": 7,
"variant": "rfc4122",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "ulid",
"value": "01KZSM9K00ABCDEFGH12345678",
"line": 5,
"column": 9,
"key": "session.ulid",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "nanoid",
"value": "V1StGXR8_Z5jdHi6B-myT",
"line": 6,
"column": 11,
"key": "session.nanoId",
"valid": true
},
{
"kind": "objectid",
"value": "6a7bb780a1b2c3d4e5f60718",
"line": 8,
"column": 10,
"key": "documents.[0]._id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "snowflake",
"value": "1536886938009600000",
"line": 10,
"column": 15,
"key": "discord.channel_id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "uuid",
"value": "00000000-0000-0000-0000-000000000000",
"line": 11,
"column": 14,
"key": "placeholder",
"valid": false,
"refused": "nil_or_max",
"detail": "the nil UUID: 128 zero bits, which RFC 9562 defines as naming nothing"
}
]
},
{
"name": "ids.toml as toml",
"file": "ids.toml",
"fileType": "toml",
"expected": [
{
"kind": "uuid",
"value": "00000000-0000-0000-0000-000000000000",
"line": 1,
"column": 16,
"key": "placeholder",
"valid": false,
"refused": "nil_or_max",
"detail": "the nil UUID: 128 zero bits, which RFC 9562 defines as naming nothing"
},
{
"kind": "uuid",
"value": "f47ac10b-58cc-4372-a567-0e02b2c3d479",
"line": 4,
"column": 7,
"key": "service.id",
"valid": true,
"version": 4,
"variant": "rfc4122"
},
{
"kind": "uuid",
"value": "019ff344-cc00-7abc-8def-0123456789ab",
"line": 5,
"column": 14,
"key": "service.requestId",
"valid": true,
"version": 7,
"variant": "rfc4122",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "ulid",
"value": "01KZSM9K00ABCDEFGH12345678",
"line": 8,
"column": 9,
"key": "session.ulid",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "nanoid",
"value": "V1StGXR8_Z5jdHi6B-myT",
"line": 9,
"column": 11,
"key": "session.nanoId",
"valid": true
},
{
"kind": "snowflake",
"value": "1536886938009600000",
"line": 12,
"column": 14,
"key": "discord.channel_id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
}
]
},
{
"name": "ids.ini as ini",
"file": "ids.ini",
"fileType": "ini",
"expected": [
{
"kind": "uuid",
"value": "00000000-0000-0000-0000-000000000000",
"line": 2,
"column": 15,
"key": "placeholder",
"valid": false,
"refused": "nil_or_max",
"detail": "the nil UUID: 128 zero bits, which RFC 9562 defines as naming nothing"
},
{
"kind": "uuid",
"value": "f47ac10b-58cc-4372-a567-0e02b2c3d479",
"line": 5,
"column": 6,
"key": "service.id",
"valid": true,
"version": 4,
"variant": "rfc4122"
},
{
"kind": "uuid",
"value": "019ff344-cc00-7abc-8def-0123456789ab",
"line": 6,
"column": 13,
"key": "service.requestId",
"valid": true,
"version": 7,
"variant": "rfc4122",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "snowflake",
"value": "1536886938009600000",
"line": 9,
"column": 14,
"key": "discord.channel_id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
}
]
},
{
"name": "ids.env as env",
"file": "ids.env",
"fileType": "env",
"expected": [
{
"kind": "uuid",
"value": "f47ac10b-58cc-4372-a567-0e02b2c3d479",
"line": 2,
"column": 12,
"key": "SERVICE_ID",
"valid": true,
"version": 4,
"variant": "rfc4122"
},
{
"kind": "uuid",
"value": "019ff344-cc00-7abc-8def-0123456789ab",
"line": 3,
"column": 12,
"key": "REQUEST_ID",
"valid": true,
"version": 7,
"variant": "rfc4122",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "ulid",
"value": "01KZSM9K00ABCDEFGH12345678",
"line": 4,
"column": 15,
"key": "SESSION_ULID",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "snowflake",
"value": "1536886938009600000",
"line": 5,
"column": 27,
"key": "DISCORD_CHANNEL_ID",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "uuid",
"value": "00000000-0000-0000-0000-000000000000",
"line": 6,
"column": 13,
"key": "PLACEHOLDER",
"valid": false,
"refused": "nil_or_max",
"detail": "the nil UUID: 128 zero bits, which RFC 9562 defines as naming nothing"
}
]
},
{
"name": "ids.csv as csv",
"file": "ids.csv",
"fileType": "csv",
"expected": [
{
"kind": "uuid",
"value": "f47ac10b-58cc-4372-a567-0e02b2c3d479",
"line": 2,
"column": 7,
"key": "service_id",
"valid": true,
"version": 4,
"variant": "rfc4122"
},
{
"kind": "snowflake",
"value": "1536886938009600000",
"line": 2,
"column": 44,
"key": "channel_id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "uuid",
"value": "019ff344-cc00-7abc-8def-0123456789ab",
"line": 3,
"column": 6,
"key": "service_id",
"valid": true,
"version": 7,
"variant": "rfc4122",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "snowflake",
"value": "1536886938009600000",
"line": 3,
"column": 43,
"key": "channel_id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
}
]
},
{
"name": "ids.txt as text",
"file": "ids.txt",
"fileType": "text",
"expected": [
{
"kind": "uuid",
"value": "f47ac10b-58cc-4372-a567-0e02b2c3d479",
"line": 3,
"column": 23,
"valid": true,
"version": 4,
"variant": "rfc4122"
},
{
"kind": "uuid",
"value": "019ff344-cc00-7abc-8def-0123456789ab",
"line": 4,
"column": 25,
"valid": true,
"version": 7,
"variant": "rfc4122",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "ulid",
"value": "01KZSM9K00ABCDEFGH12345678",
"line": 5,
"column": 13,
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": null,
"value": "6a7bb780a1b2c3d4e5f60718",
"line": 6,
"column": 1,
"valid": false,
"timestamp": "2026-08-12T00:00:00.000Z",
"refused": "ambiguous_kind",
"detail": "24 hex digits are an ObjectId, a truncated hash and a hex dump in equal measure, and nothing in this document names this field an identifier"
}
]
},
{
"name": "the ambiguity set",
"file": "ambiguous.json",
"fileType": "json",
"expected": [
{
"kind": null,
"value": "5d41402abc4b2a76b9719d911017c592",
"line": 2,
"column": 14,
"key": "digest",
"valid": false,
"refused": "ambiguous_kind",
"detail": "32 hex digits are an unhyphenated UUID and an MD5 digest in equal measure; nothing in this document chooses between them"
},
{
"kind": null,
"value": "01kzsm9k00AbCdEfGh12345678",
"line": 3,
"column": 13,
"key": "token",
"valid": false,
"refused": "ambiguous_kind",
"detail": "a valid ULID is canonically uppercase; in this case it is equally a token from another 26-character scheme, and no key here says which"
},
{
"kind": null,
"value": "e83c5163316f89bfbde7d9ab",
"line": 4,
"column": 14,
"key": "commit",
"valid": false,
"timestamp": "2093-06-19T16:25:07.000Z",
"refused": "ambiguous_kind",
"detail": "24 hex digits are an ObjectId, a truncated hash and a hex dump in equal measure, and nothing in this document names this field an identifier"
},
{
"kind": null,
"value": "V1StGXR8xZ5jdHi6BxmyT",
"line": 5,
"column": 14,
"key": "secret",
"valid": false,
"refused": "ambiguous_kind",
"detail": "21 base62 characters are a NanoID, a short token and a truncated hash in equal measure; only a `-` or `_`, or a key naming the scheme, separates them"
},
{
"kind": "snowflake",
"value": "1536886938009600000",
"line": 6,
"column": 14,
"key": "user_id",
"valid": false,
"timestamp": "2022-06-15T01:42:54.657Z",
"refused": "ambiguous_kind",
"detail": "the Twitter epoch decodes this to 2022-06-15T01:42:54.657Z and the Discord epoch to 2026-08-12T00:00:00.000Z; both are plausible and no key here names the platform"
},
{
"kind": "uuid",
"value": "f47ac10b-58cc-4372-1567-0e02b2c3d479",
"line": 7,
"column": 14,
"key": "legacy",
"valid": false,
"variant": "ncs",
"refused": "malformed",
"detail": "the variant bits say NCS, not RFC 4122, so the version nibble is not a version"
},
{
"kind": "ulid",
"value": "01KZSM9K00ABCDEFGH123456I8",
"line": 8,
"column": 16,
"key": "mistyped",
"valid": false,
"refused": "malformed",
"detail": "26 characters is a ULID's length, and Crockford base32 excludes I, L, O and U"
},
{
"kind": null,
"value": "6a7bb780a1b2c3d4e5f6071",
"line": 9,
"column": 17,
"key": "truncated",
"valid": false,
"refused": "malformed",
"detail": "23 hex digits is not a whole number of bytes and is one digit from a hex identifier this tool knows"
},
{
"kind": "uuid",
"value": "00000000-0000-0000-0000-000000000000",
"line": 10,
"column": 11,
"key": "nil",
"valid": false,
"refused": "nil_or_max",
"detail": "the nil UUID: 128 zero bits, which RFC 9562 defines as naming nothing"
},
{
"kind": "uuid",
"value": "ffffffff-ffff-ffff-ffff-ffffffffffff",
"line": 11,
"column": 11,
"key": "max",
"valid": false,
"refused": "nil_or_max",
"detail": "the max UUID: 128 one bits, which RFC 9562 defines as naming nothing"
},
{
"kind": "uuid",
"value": "00000000-0000-4000-8000-000000000000",
"line": 12,
"column": 14,
"key": "zeroed",
"valid": false,
"version": 4,
"variant": "rfc4122",
"refused": "version_claim_mismatch",
"detail": "the version nibble claims v4, which is 122 random bits, and 15 of its nibbles in a row are zero"
},
{
"kind": "uuid",
"value": "7fffffff-ffff-7abc-8def-0123456789ab",
"line": 13,
"column": 15,
"key": "faraway",
"valid": false,
"version": 7,
"variant": "rfc4122",
"timestamp": "6429-10-17T02:45:55.327Z",
"refused": "timestamp_implausible",
"detail": "the v7 time field decodes outside the plausible range"
}
]
},
{
"name": "the timestamp set",
"file": "timestamps.json",
"fileType": "json",
"expected": [
{
"kind": "uuid",
"value": "c232ab00-9414-11ec-b3c8-9e6bdeced846",
"line": 2,
"column": 15,
"key": "uuid_v1",
"valid": true,
"version": 1,
"variant": "rfc4122",
"timestamp": "2022-02-22T19:22:22.000Z"
},
{
"kind": "uuid",
"value": "1ec9414c-232a-6b00-b3c8-9e6bdeced846",
"line": 3,
"column": 15,
"key": "uuid_v6",
"valid": true,
"version": 6,
"variant": "rfc4122",
"timestamp": "2022-02-22T19:22:22.000Z"
},
{
"kind": "uuid",
"value": "019ff344-cc00-7abc-8def-0123456789ab",
"line": 4,
"column": 15,
"key": "uuid_v7",
"valid": true,
"version": 7,
"variant": "rfc4122",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "ulid",
"value": "01KZSM9K00ABCDEFGH12345678",
"line": 5,
"column": 12,
"key": "ulid",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "objectid",
"value": "6a7bb780a1b2c3d4e5f60718",
"line": 6,
"column": 16,
"key": "objectid",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "snowflake",
"value": "1536886938009600000",
"line": 7,
"column": 30,
"key": "discord.message_id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "snowflake",
"value": "2087328207467446272",
"line": 8,
"column": 28,
"key": "twitter.tweet_id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
}
]
},
{
"name": "a trailing comment lends no key",
"file": "comments.toml",
"fileType": "toml",
"expected": [
{
"kind": "objectid",
"value": "6a7bb780a1b2c3d4e5f60718",
"line": 5,
"column": 8,
"key": "_id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": "objectid",
"value": "6a7bb780a1b2c3d4e5f60718",
"line": 6,
"column": 18,
"key": "quoted_id",
"valid": true,
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"kind": null,
"value": "6a7bb780a1b2c3d4e5f60718",
"line": 7,
"column": 18,
"valid": false,
"timestamp": "2026-08-12T00:00:00.000Z",
"refused": "ambiguous_kind",
"detail": "24 hex digits are an ObjectId, a truncated hash and a hex dump in equal measure, and nothing in this document names this field an identifier"
}
]
}
],
"ambiguity": [
{
"value": "5d41402abc4b2a76b9719d911017c592",
"reason": "ambiguous_kind"
},
{
"value": "01kzsm9k00AbCdEfGh12345678",
"reason": "ambiguous_kind"
},
{
"value": "e83c5163316f89bfbde7d9ab",
"reason": "ambiguous_kind"
},
{
"value": "V1StGXR8xZ5jdHi6BxmyT",
"reason": "ambiguous_kind"
},
{
"value": "1536886938009600000",
"reason": "ambiguous_kind"
},
{
"value": "f47ac10b-58cc-4372-1567-0e02b2c3d479",
"reason": "malformed"
},
{
"value": "01KZSM9K00ABCDEFGH123456I8",
"reason": "malformed"
},
{
"value": "6a7bb780a1b2c3d4e5f6071",
"reason": "malformed"
},
{
"value": "00000000-0000-0000-0000-000000000000",
"reason": "nil_or_max"
},
{
"value": "ffffffff-ffff-ffff-ffff-ffffffffffff",
"reason": "nil_or_max"
},
{
"value": "00000000-0000-4000-8000-000000000000",
"reason": "version_claim_mismatch"
},
{
"value": "7fffffff-ffff-7abc-8def-0123456789ab",
"reason": "timestamp_implausible"
}
],
"timestamps": [
{
"value": "c232ab00-9414-11ec-b3c8-9e6bdeced846",
"kind": "uuid",
"timestamp": "2022-02-22T19:22:22.000Z"
},
{
"value": "1ec9414c-232a-6b00-b3c8-9e6bdeced846",
"kind": "uuid",
"timestamp": "2022-02-22T19:22:22.000Z"
},
{
"value": "019ff344-cc00-7abc-8def-0123456789ab",
"kind": "uuid",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"value": "01KZSM9K00ABCDEFGH12345678",
"kind": "ulid",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"value": "6a7bb780a1b2c3d4e5f60718",
"kind": "objectid",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"value": "1536886938009600000",
"kind": "snowflake",
"timestamp": "2026-08-12T00:00:00.000Z"
},
{
"value": "2087328207467446272",
"kind": "snowflake",
"timestamp": "2026-08-12T00:00:00.000Z"
}
]
}