diff --git a/ChangeLog b/ChangeLog
index 177255cea..4546d99f6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2016-04-02  Moritz Bunkus  <moritz@bunkus.org>
+
+        * mkvmerge: enhancement: added the minimum timestamp for each
+        track in verbose/JSON identification outputs (key
+        "minimum_timestamp") when identifying Matroska files. At most the
+        first ten seconds are probed; if no block is found for a track
+        within that range then the key is not output for the track.
+
 2016-03-31  Moritz Bunkus  <moritz@bunkus.org>
 
         * MKVToolNix GUI: merge tool change: attachments from source files
diff --git a/doc/json-schema/mkvmerge-identification-output-schema-v4.json b/doc/json-schema/mkvmerge-identification-output-schema-v4.json
new file mode 100644
index 000000000..ca40f81ed
--- /dev/null
+++ b/doc/json-schema/mkvmerge-identification-output-schema-v4.json
@@ -0,0 +1,370 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "id": "https://mkvtoolnix.download/doc/mkvmerge-identification-output-schema-v4.json",
+  "title": "mkvmerge identification output",
+  "description": "The JSON output produced by mkvmerge's file identification mode",
+  "type": "object",
+  "properties": {
+    "attachments": {
+      "description": "an array describing the attachments found if any",
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "content_type": {
+            "type": "string",
+            "minLength": 1
+          },
+          "description": {
+            "type": "string"
+          },
+          "file_name": {
+            "type": "string"
+          },
+          "id": {
+            "type": "integer",
+            "minimum": 0
+          },
+          "size": {
+            "type": "integer",
+            "minimum": 0
+          },
+          "properties": {
+            "type": "object",
+            "properties": {
+              "uid": {
+                "type": "integer",
+                "minimum": 0
+              }
+            },
+            "additionalProperties": false
+          },
+          "type": {
+            "type": "string"
+          }
+        },
+        "additionalProperties": false,
+        "required": [
+          "file_name",
+          "id",
+          "properties",
+          "size"
+        ]
+      }
+    },
+    "chapters": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "num_entries": {
+            "type": "integer"
+          }
+        },
+        "additionalProperties": false,
+        "required": [
+          "num_entries"
+        ]
+      }
+    },
+    "container": {
+      "description": "information about the identified container",
+      "type": "object",
+      "properties": {
+        "properties": {
+          "description": "additional properties for the container varying by container format",
+          "type": "object",
+          "properties": {
+            "container_type": {
+              "description": "A unique number identifying the container type that's supposed to stay constant over all future releases of MKVToolNix",
+              "type": "integer",
+              "minLength": 1
+            },
+            "duration": {
+              "description": "The file's/segment's duration in nanoseconds",
+              "type": "integer",
+              "minimum": 0
+            },
+            "is_providing_timecodes": {
+              "description": "States whether or not the container has timestamps for the packets (e.g. Matroska, MP4) or not (e.g. SRT, MP3)",
+              "type": "boolean"
+            },
+            "segment_uid": {
+              "description": "A hexadecimal string of the segment's UID (only for Matroska files)",
+              "type": "string",
+              "minLength": 32,
+              "maxLength": 32
+            },
+            "next_segment_uid": {
+              "description": "A hexadecimal string of the next segment's UID (only for Matroska files)",
+              "type": "string",
+              "minLength": 32,
+              "maxLength": 32
+            },
+            "previous_segment_uid": {
+              "description": "A hexadecimal string of the previous segment's UID (only for Matroska files)",
+              "type": "string",
+              "minLength": 32,
+              "maxLength": 32
+            },
+            "other_file": {
+              "description": "An array of names of additional files processed as well",
+              "type": "array",
+              "items": {
+                "type": "string"
+              }
+            },
+            "playlist": {
+              "description": "States whether or not the identified file is a playlist (e.g. MPLS) referring to several other files",
+              "type": "boolean"
+            },
+            "playlist_chapters": {
+              "description": "The number of chapters in a playlist if it is a one",
+              "type": "integer",
+              "minimum": 0
+            },
+            "playlist_duration": {
+              "description": "The total duration in nanoseconds of all files referenced by the playlist if it is a one",
+              "type": "integer",
+              "minimum": 0
+            },
+            "playlist_file": {
+              "description": "An array of file names the playlist contains",
+              "type": "array",
+              "items": {
+                "type": "string"
+              }
+            },
+            "playlist_size": {
+              "description": "The total size in bytes of all files referenced by the playlist if it is a one",
+              "type": "integer",
+              "minimum": 0
+            },
+            "title": {
+              "type": "string"
+            }
+          },
+          "additionalProperties": false
+        },
+        "recognized": {
+          "description": "States whether or not mkvmerge knows about the format",
+          "type": "boolean"
+        },
+        "supported": {
+          "description": "States whether or not mkvmerge can read the format",
+          "type": "boolean"
+        },
+        "type": {
+          "description": "A human-readable description/name for the container format",
+          "type": "string",
+          "minLength": 1
+        }
+      },
+      "additionalProperties": false,
+      "required": [
+        "recognized",
+        "supported"
+      ]
+    },
+    "errors": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      }
+    },
+    "file_name": {
+      "description": "the identified file's name",
+      "type": "string",
+      "minLength": 1
+    },
+    "global_tags": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "num_entries": {
+            "type": "integer"
+          }
+        },
+        "additionalProperties": false,
+        "required": [
+          "num_entries"
+        ]
+      }
+    },
+    "identification_format_version": {
+      "description": "The output format's version",
+      "type": "integer",
+      "minimum": 4,
+      "maximum": 4
+    },
+    "track_tags": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "num_entries": {
+            "type": "integer"
+          },
+          "track_id": {
+            "type": "integer"
+          }
+        },
+        "additionalProperties": false,
+        "required": [
+          "num_entries",
+          "track_id"
+        ]
+      }
+    },
+    "tracks": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "codec": {
+            "type": "string",
+            "minLength": 1
+          },
+          "id": {
+            "type": "integer",
+            "minLength": 0
+          },
+          "type": {
+            "type": "string"
+          },
+          "properties": {
+            "type": "object",
+            "properties": {
+              "aac_is_sbr": {
+                "type": "string",
+                "enum": [
+                  "true",
+                  "false",
+                  "unknown"
+                ]
+              },
+              "audio_bits_per_sample": {
+                "type": "integer",
+                "minimum": 0
+              },
+              "audio_channels": {
+                "type": "integer",
+                "minimum": 0
+              },
+              "audio_sampling_frequency": {
+                "type": "integer",
+                "minimum": 0
+              },
+              "codec_id": {
+                "type": "string"
+              },
+              "codec_private_data": {
+                "type": "string"
+              },
+              "codec_private_length": {
+                "type": "integer",
+                "minimum": 0
+              },
+              "content_encoding_algorithms": {
+                "type": "string",
+                "minLength": 1
+              },
+              "default_duration": {
+                "type": "integer",
+                "minimum": 0
+              },
+              "default_track": {
+                "type": "boolean"
+              },
+              "display_dimensions": {
+                "type": "string",
+                "pattern": "^[0-9]+x[0-9]+$"
+              },
+              "enabled_track": {
+                "type": "boolean"
+              },
+              "forced_track": {
+                "type": "boolean"
+              },
+              "language": {
+                "type": "string"
+              },
+              "minimum_timestamp": {
+                "description": "The minimum timestamp in nanoseconds of all the frames of this track found within the first couple of seconds of the file",
+                "type": "integer",
+                "minimum": 0
+              },
+              "number": {
+                "type": "integer",
+                "minimum": 0
+              },
+              "packetizer": {
+                "type": "string",
+                "minLength": 1
+              },
+              "pixel_dimensions": {
+                "type": "string",
+                "pattern": "^[0-9]+x[0-9]+$"
+              },
+              "stereo_mode": {
+                "type": "integer",
+                "minimum": 0
+              },
+              "stream_id": {
+                "type": "string",
+                "pattern": "^[0-9a-f]{2}$"
+              },
+              "sub_stream_id": {
+                "type": "string",
+                "pattern": "^[0-9a-f]{2}$"
+              },
+              "tag_artist": {
+                "type": "string"
+              },
+              "tag_bitsps": {
+                "type": "string"
+              },
+              "tag_bps": {
+                "type": "string"
+              },
+              "tag_fps": {
+                "type": "string"
+              },
+              "tag_title": {
+                "type": "string"
+              },
+              "text_subtitles": {
+                "type": "boolean"
+              },
+              "track_name": {
+                "type": "string"
+              },
+              "ts_pid": {
+                "type": "integer",
+                "minimum": 0
+              },
+              "uid": {
+                "type": "integer",
+                "minimum": 0
+              }
+            },
+            "additionalProperties": false
+          }
+        },
+        "additionalProperties": false,
+        "required": [
+          "codec",
+          "id",
+          "type"
+        ]
+      }
+    },
+    "warnings": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      }
+    }
+  }
+}
diff --git a/src/common/id_info.h b/src/common/id_info.h
index 549a2bcba..8ad59d5f3 100644
--- a/src/common/id_info.h
+++ b/src/common/id_info.h
@@ -36,6 +36,7 @@ char const * const duration                        = "duration";
 char const * const enabled_track                   = "enabled_track";                   // track boolean
 char const * const forced_track                    = "forced_track";                    // track boolean
 char const * const language                        = "language";                        // track ascii-string format:^\w{3}$
+char const * const minimum_timestamp               = "minimum_timestamp";               // track unsigned-integer
 char const * const mpeg4_p10_es_video              = "mpeg4_p10_es_video";              // track boolean
 char const * const mpeg4_p10_video                 = "mpeg4_p10_video";                 // track boolean
 char const * const mpegh_p2_es_video               = "mpegh_p2_es_video";               // track boolean
diff --git a/src/input/r_matroska.cpp b/src/input/r_matroska.cpp
index 952b15709..932c2255d 100644
--- a/src/input/r_matroska.cpp
+++ b/src/input/r_matroska.cpp
@@ -2303,8 +2303,88 @@ kax_reader_c::set_headers() {
       PTZR(track->ptzr)->get_track_entry()->EnableLacing(track->lacing_flag);
 }
 
+std::unordered_map<uint64_t, timestamp_c>
+kax_reader_c::determine_minimum_timestamps() {
+  if (m_tracks.empty())
+    return {};
+
+  std::unordered_map<uint64_t, timestamp_c> timestamps_by_number;
+  std::unordered_map<uint64_t, kax_track_cptr> tracks_by_number;
+
+  timestamp_c first_timestamp, last_timestamp;
+  auto probe_time_limit = timestamp_c::s(10);
+  auto video_time_limit = timestamp_c::s(1);
+
+  for (auto &track : m_tracks)
+    tracks_by_number[track->track_number] = track;
+
+  while (true) {
+    try {
+      auto cluster = std::shared_ptr<KaxCluster>(m_in_file->read_next_cluster());
+      if (!cluster)
+        return timestamps_by_number;
+
+      auto cluster_tc = FindChildValue<KaxClusterTimecode>(*cluster);
+      cluster->InitTimecode(cluster_tc, m_tc_scale);
+
+      for (auto const &element : *cluster) {
+        uint64_t track_number{};
+
+        if (Is<KaxSimpleBlock>(element)) {
+          auto block = static_cast<KaxSimpleBlock *>(element);
+          block->SetParent(*cluster);
+
+          last_timestamp = timestamp_c::ns(block->GlobalTimecode());
+          track_number   = block->TrackNum();
+
+        } else if (Is<KaxBlockGroup>(element)) {
+          auto block = FindChild<KaxBlock>(static_cast<KaxBlockGroup *>(element));
+          if (!block)
+            continue;
+
+          block->SetParent(*cluster);
+
+          last_timestamp = timestamp_c::ns(block->GlobalTimecode());
+          track_number   = block->TrackNum();
+
+        } else
+          continue;
+
+        if (!first_timestamp.valid())
+          first_timestamp = last_timestamp;
+
+        if ((last_timestamp - first_timestamp) >= probe_time_limit)
+          return timestamps_by_number;
+
+        auto &track = tracks_by_number[track_number];
+        if (!track)
+          continue;
+
+        auto &recorded_timestamp = timestamps_by_number[track_number];
+        if (!recorded_timestamp.valid() || (last_timestamp < recorded_timestamp))
+          recorded_timestamp = last_timestamp;
+
+        if (   (track->type == 'v')
+            && ((last_timestamp - recorded_timestamp) < video_time_limit))
+          continue;
+
+        tracks_by_number.erase(track_number);
+        if (tracks_by_number.empty())
+          return timestamps_by_number;
+      }
+
+    } catch (...) {
+      break;
+    }
+  }
+
+  return timestamps_by_number;
+}
+
 void
 kax_reader_c::identify() {
+  auto minimum_timestamps_by_number = determine_minimum_timestamps();
+
   auto info = mtx::id::info_c{};
 
   if (!m_title.empty())
@@ -2389,6 +2469,10 @@ kax_reader_c::identify() {
 
     track->add_track_tags_to_identification(info);
 
+    auto &minimum_timestamp = minimum_timestamps_by_number[track->track_number];
+    if (minimum_timestamp.valid())
+      info.set(mtx::id::minimum_timestamp, minimum_timestamp.to_ns());
+
     id_result_track(track->tnum,
                       track->type == 'v' ? ID_RESULT_TRACK_VIDEO
                     : track->type == 'a' ? ID_RESULT_TRACK_AUDIO
diff --git a/src/input/r_matroska.h b/src/input/r_matroska.h
index 8abd950cd..10081e3b3 100644
--- a/src/input/r_matroska.h
+++ b/src/input/r_matroska.h
@@ -302,6 +302,8 @@ protected:
 
   void init_l1_position_storage(deferred_positions_t &storage);
   virtual bool has_deferred_element_been_processed(deferred_l1_type_e type, int64_t position);
+
+  virtual std::unordered_map<uint64_t, timestamp_c> determine_minimum_timestamps();
 };
 
 #endif  // MTX_INPUT_R_MATROSKA_H
diff --git a/src/merge/id_result.h b/src/merge/id_result.h
index 3e02d3707..c99d98765 100644
--- a/src/merge/id_result.h
+++ b/src/merge/id_result.h
@@ -27,7 +27,7 @@
 #define ID_RESULT_TAGS            "tags"
 #define ID_RESULT_GLOBAL_TAGS_ID  -1
 
-#define ID_JSON_FORMAT_VERSION    3
+#define ID_JSON_FORMAT_VERSION    4
 
 struct id_result_t {
   int64_t id;
diff --git a/tests/results.txt b/tests/results.txt
index c9e4c3e4d..1e6d90943 100644
--- a/tests/results.txt
+++ b/tests/results.txt
@@ -63,7 +63,7 @@ T_213mp4_broken_pixel_dimensions:b0ffac7af09e87a2e4c7ace7b09b1b46:passed:2005091
 T_214one_frame_avi:a4b223e7f22b5e3c2bcf70e455188f79:passed:20051004-192755:0.039489971
 T_215X_codec_extradata_avi:6d668338e66c695c72098902b0ce513c-74ac799ad899f703cbb6c6654e5f9f51:passed:20051004-194707:0.052219855
 T_216mp4_editlists:5c548c99e1fa4f27afaa5c4fe198924c:passed:20051118-191453:0.106975045
-T_217file_identification:7a2a506954a56f21739e7912897e07ad-903514f1cd84055d9b06ecff5e8d1ea1-d02809ab6dc92a41ef60b571bd117e4d-9b7ea962c56888037231707f9311e080-279167d14c30edc4788cc066f22c941f-ccd6c289299801382b09a9bc13326092-44256b48783ae449ceca65e8419d72e8-cd6039be3553f8bf857c77c8bb99ad1b-55543e6744a979d4a3ffbf0e0bcc855c-d2389a900373adc4864fb3534e145fb0-7febbb46072c2b256735786471c02df4-e2853a83b5964834faa6aa34318aad9c-734e635a1b254319593e24ba89e2434c-1c31748e6eaabc9b84eb737124f457d3-f4bf52b0bf7c773ec337a9d29043b84c-ab8604871b63846cd7df9d5282db3f35-2b05e8b45ff5b8568be5f4aed1bd18bc-2000bb80eaecc682af955c3d64847fc8-3b9e8de7136f2fffa4e2bbf1b4aa38e0-db05f705a1e059b29f4db1ea3ee9d59e-e38a8502cd0c407d8ce517913a2db8c0-588d6dd39935990b73cbb2158cf960fe:passed:20051209-180815:1.882517588
+T_217file_identification:7a2a506954a56f21739e7912897e07ad-903514f1cd84055d9b06ecff5e8d1ea1-5079cbde3f69747c622c08b7fdcee66f-80fa1910c6a50d00753313ebd89e67ab-279167d14c30edc4788cc066f22c941f-ccd6c289299801382b09a9bc13326092-44256b48783ae449ceca65e8419d72e8-cd6039be3553f8bf857c77c8bb99ad1b-55543e6744a979d4a3ffbf0e0bcc855c-d2389a900373adc4864fb3534e145fb0-7febbb46072c2b256735786471c02df4-e2853a83b5964834faa6aa34318aad9c-734e635a1b254319593e24ba89e2434c-1c31748e6eaabc9b84eb737124f457d3-f4bf52b0bf7c773ec337a9d29043b84c-ab8604871b63846cd7df9d5282db3f35-2b05e8b45ff5b8568be5f4aed1bd18bc-2000bb80eaecc682af955c3d64847fc8-3b9e8de7136f2fffa4e2bbf1b4aa38e0-db05f705a1e059b29f4db1ea3ee9d59e-e38a8502cd0c407d8ce517913a2db8c0-588d6dd39935990b73cbb2158cf960fe:passed:20051209-180815:1.882517588
 T_218theora:eb650da44ce14cd749ebfb94d270e33c-902b1d711e150c3e923aa43a88970ff4:passed:20060428-105054:0.392912102
 T_219srt_short_timecodes:4d58c1d5ddab6368080d54a7585b0f83:passed:20060926-112658:0.117747192
 T_220ass_with_comments_at_start:30926355189808086b52edf95c8f49d0:passed:20060926-120101:0.382410266
@@ -190,7 +190,7 @@ T_341vob_interlaced_mpeg2:c51b19eee5fad05ab8cde09ae561677b:passed:20120304-16331
 T_342m2ts_interlaced_h264_from_arte:b02e855c2c8bcdde94081df8f43f895f:passed:20120304-165917:4.5443942
 T_343m2ts_interlaced_h264_match_of_the_day:5b902a498c5e473ec584a2d1bb39517b:passed:20120304-171453:3.858753744
 T_344microdvd_recognition:ok:passed:20120304-175209:0.114439546
-T_345flag_enabled:105245e80fc4a79be3ea27a50ae4564e-24dd401b3d6e814e8a412be30e8a0669:passed:20120304-181150:0.410047671
+T_345flag_enabled:b7a4b2b1ae9e9b946f828a8272e94158-24dd401b3d6e814e8a412be30e8a0669:passed:20120304-181150:0.410047671
 T_347h264_misdetected_as_ac3:f2e3101ea1fad1752d24c9143fbea954:passed:20120305-160017:1.722170533
 T_348srt_negative_timecodes2:beaee30a910a72560a844628f3a072ac:passed:20120307-115726:0.120842971
 T_349h264_interlaced_default_duration:abc9dd7b4579a2e14783271d1d64d486-051cfe8f2749c2c8bdda0f2e2110af68-051cfe8f2749c2c8bdda0f2e2110af68-ff863149bd403bf445a8542f0d830e99:passed:20120307-184849:7.012794592
@@ -273,7 +273,7 @@ T_424avc_recover_point_sei_before_second_field:6398b8fc42da442ccc2d599a9df63d89:
 T_425mpeg_ts_timestamp_outlier:a5204ef83771296b32ea8d7052cba956:passed:20140305-203603:2.509694471
 T_426extract_write_bom_only_once:a9255d40de93e2731aaead0a746e582f-a9255d40de93e2731aaead0a746e582f:passed:20140310-195606:0.0
 T_427ui_locale_pt_BR:8719aedc77a0435129c79e3a061642bf-344b51e9ae6fe2d8ce60fef18ee0e7d1:passed:20140418-103113:0.143370167
-T_428mkv_misdetected_as_ass:1f0df0dbdbbe6f310e6edc12fc22b29e:passed:20140518-155446:0.033341203
+T_428mkv_misdetected_as_ass:b5818edd4d65f28fae73bfb2e7d3be55:passed:20140518-155446:0.033341203
 T_429track_statistics_tags:43d4c0ec5cbbc31018715e62a99377df-b726a7c00558fd45468ceb163016eeb4-68d639b8e42bfd0e2b7b4105dea7c091-e179bf70e6b4f2316292d70f4eda2c2e:passed:20140524-194544:0.635343822
 T_430cues_multiple_blocks_same_timecode:f1ab5c927064537eb59ab0f5195d6a1d:passed:20140525-173642:0.033316759
 T_431ssa_comments_exclamation_mark:3caa9ad1716134cc1f3e229b88ff94ea:passed:20140618-232324:0.072735677
@@ -349,7 +349,7 @@ T_500mp4_eac3_fourcc_ec_3:c98039cef2a6919c6fa3d9b1912873cf:passed:20150621-22424
 T_501mpeg_ts_pat_and_pmt_crc_errors:bc9d2e9e0fa7d962b04e719e9bce3856:passed:20150704-110859:0.857051787
 T_502ui_locale_sr_RS:650e05c9c091234882980f4c1da05dc4-25fa402006e7971d8e5a2b1139a4c4d8:passed:20150829-213708:0.062939538
 T_503pcm_in_mkv_varying_samples_per_packet:091442963a5879e8e1d8fca62458a06a:passed:20151004-215848:0.430291421
-T_504dts_96_24_identification:1837ab5b411944e143f9dae6fe6436d8-bb7c41b5aa1b57f18741b792897b0b59-8ad5d7ed98bee700e91689784c82717f:passed:20151006-223804:2.278995107
+T_504dts_96_24_identification:1837ab5b411944e143f9dae6fe6436d8-5d139c9c7c7233563b2ab98d5f63deb2-8ad5d7ed98bee700e91689784c82717f:passed:20151006-223804:2.278995107
 T_505cisco_talos_can_0036:bf0fedc494cf99a0920d7a6e69edf952-6ef415b0f84d3e5dd435244362a37584:passed:20151020-161153:0.071686357
 T_506cisco_talos_can_0037:5461288548eac976164cd13f01bc9426-ed695caee29b1456da8629d38321ec9c-92b7169fc05ddf54c46816869c108f31-54a55a6d87bd4c08269891efb03980b3-fef3d018523c7d1fbed763f6666c1ae2-ac584cc44854f9396739df6e93d78acc-b415b2ef2a6dddf5d89733446fae2970-dd53fee23372c569d35e0b2918d86239:passed:20151020-161234:0.319298931
 T_507rerender_track_headers:0572728ed778526af9a0e36c7872fab6-c49848577778e5c5146e5b875e3a07d6:passed:20151022-104930:2.573204876
@@ -357,7 +357,7 @@ T_508splitting_by_parts_with_segment_linking:existence0-true-true-true-existence
 T_509rerender_track_headers_chapters_attachments:21e5c9991875b114014050d68bd2a31c:passed:20151115-230226:0.287840782
 T_510propedit_add_attachments_without_meta_seek_present:770103c238a0f502c9ec55f0599d8544:passed:20151121-101043:0.070892905
 T_511propedit_ensure_seek_head_exists_at_front:20f53afd94e39f5bbf3f1091eefbe31d:passed:20151129-194025:0.152563199
-T_512json_identification:e2c1bd814ea805d9711a3875e646a51d+ok-d815a6390e25b861d21093ef66f17191+ok-19f449d85ad9c8c2a3d3840bc3734e58+ok-a86b43982a842c6b9c8572534e40dcca+ok-bf4664fb8aac8ad51e16d018d2c6697e+ok-e6e342718925ef84c9c65288d477ac76+ok-59c47f40f7c35d90a4a8ba0f15aebf5b+ok-b524a708c8e65517026daf4e18c6efcf+ok-eabca6419fcd27291e5db66c1e391c0d+ok-01f6792cb05fb5dd4823a5919a5565b4+ok-3f9fd90d34f591fa205eb235b1efe36c+ok-f7c9d7c612f38a0a2c0548a38008882f+ok-10bd29b4b37ba8e8fd746a45e67af4a1+ok-b137e5af83e68f2c52af9bfe3976a977+ok-c8b2bd3f66486fc47ad98d7b6a06f713+ok:passed:20151207-223859:1.876447112
+T_512json_identification:e2c1bd814ea805d9711a3875e646a51d+ok-d815a6390e25b861d21093ef66f17191+ok-19f449d85ad9c8c2a3d3840bc3734e58+ok-a86b43982a842c6b9c8572534e40dcca+ok-bf4664fb8aac8ad51e16d018d2c6697e+ok-e6e342718925ef84c9c65288d477ac76+ok-59c47f40f7c35d90a4a8ba0f15aebf5b+ok-40e49f1a1c18e4a2975e7472e6b20c60+ok-198c8949e157e08526189cc0aec964c8+ok-01f6792cb05fb5dd4823a5919a5565b4+ok-3f9fd90d34f591fa205eb235b1efe36c+ok-f7c9d7c612f38a0a2c0548a38008882f+ok-4acc3a60e97069072c3e586888a32776+ok-b137e5af83e68f2c52af9bfe3976a977+ok-c8b2bd3f66486fc47ad98d7b6a06f713+ok:passed:20151207-223859:1.876447112
 T_513vp9_10bit_key_frame_detection:9eab6e85ec792dcf670873d70a87f6ea:passed:20151208-224613:0.267556245
 T_514remove_track_statistics_tags_during_remux:43d4c0ec5cbbc31018715e62a99377df-afe190e36be530592fe3b83fb28d3e69-a7f246fe02132a1fb9cd3d7d0f85f180:passed:20151215-134129:1.426290351
 T_515aac_sampling_frequency_8000_is_not_sbr:b8f857faf759eae5362fefbb7cbeed23:passed:20151219-130357:0.066237884
diff --git a/tests/test.d/simple_test.rb b/tests/test.d/simple_test.rb
index df5dcbe65..5f5fadf94 100644
--- a/tests/test.d/simple_test.rb
+++ b/tests/test.d/simple_test.rb
@@ -319,7 +319,7 @@ class SimpleTest
     json_store = JsonSchema::DocumentStore.new
     parser     = JsonSchema::Parser.new
     expander   = JsonSchema::ReferenceExpander.new
-    schema     = parser.parse JSON.load(File.read("../doc/json-schema/mkvmerge-identification-output-schema-v3.json"))
+    schema     = parser.parse JSON.load(File.read("../doc/json-schema/mkvmerge-identification-output-schema-v4.json"))
 
     expander.expand(schema, store: json_store)
     json_store.add_schema schema