Czech Philharmonic Chamber Orchestra & Kuehn's Mixed Choir
type: MusicGroup
popularity: 25
followers: 1903
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c8ac5b499aa2d939c6b574560372d8df9d25b79fb73cf37875eb9bdce8bb014
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d7fbcf4-ac9d-44dc-a8a8-d0e3227f1980.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d7fbcf4-ac9d-44dc-a8a8-d0e3227f1980.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7d7fbcf4-ac9d-44dc-a8a8-d0e3227f1980
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c8ac5b499aa2d939c6b574560372d8df9d25b79fb73cf37875eb9bdce8bb014","name":"Czech Philharmonic Chamber Orchestra & Kuehn's Mixed Choir","registered_at":"2026-06-12T02:38:50Z","symbol":"NIM0161630","token_address":"0xf22a930b180aaaf163bc6bd20ea3b89dd5ed9084","type":"artist","uuid":"7d7fbcf4-ac9d-44dc-a8a8-d0e3227f1980"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8ac5b499aa2d939c6b574560372d8df9d25b79fb73cf37875eb9bdce8bb014. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d7fbcf4-ac9d-44dc-a8a8-d0e3227f1980.json and https://artists.proofprofile.net/proofs/artist/7d7fbcf4-ac9d-44dc-a8a8-d0e3227f1980.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x8c8ac5b499aa2d939c6b574560372d8df9d25b79fb73cf37875eb9bdce8bb014","name":"Czech Philharmonic Chamber Orchestra & Kuehn's Mixed Choir","registered_at":"2026-06-12T02:38:50Z","symbol":"NIM0161630","token_address":"0xf22a930b180aaaf163bc6bd20ea3b89dd5ed9084","type":"artist","uuid":"7d7fbcf4-ac9d-44dc-a8a8-d0e3227f1980"}
album: Play! Live CD/ DVD
  type: MusicAlbum
  date published: 2009-01-01
  track: PLAY! Opening Fanfare Live
    type: MusicRecording
    duration: PT2M10S
    duration ms: 130199
    explicit: false
    by artist: Czech Philharmonic Chamber Orchestra & Kuehn's Mixed Choir
    in album: Play! Live CD/ DVD
      type: MusicAlbum
      date published: 2009-01-01
    isrc code: USHM91021026
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T20:14:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6a4a54438a5025f5aaff80a7f242ed49c13a625a3cfe93348b2945e4df49e89f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91021026
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4a54438a5025f5aaff80a7f242ed49c13a625a3cfe93348b2945e4df49e89f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91021026.
      date published: 2026-07-06T01:25:57Z
    audio: PLAY! Opening Fanfare Live
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.954
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.23
      additional property: Energy
        type: PropertyValue
        value: 0.726
      additional property: Speechiness
        type: PropertyValue
        value: 0.063
      additional property: Acousticness
        type: PropertyValue
        value: 0.847
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.909
      additional property: Liveness
        type: PropertyValue
        value: 0.77
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.392
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.248
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Sonic the Hedgehog Live
    type: MusicRecording
    duration: PT6M39S
    duration ms: 399840
    explicit: false
    by artist: Czech Philharmonic Chamber Orchestra & Kuehn's Mixed Choir
    in album: Play! Live CD/ DVD
      type: MusicAlbum
      date published: 2009-01-01
    isrc code: USHM91021029
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T23:09:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbe6f73cc279ea4af88738ec2dad31c43945e1db8b699a7f844e7171a1ff37547
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958079
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958079
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91021029
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T00:21:05Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6f73cc279ea4af88738ec2dad31c43945e1db8b699a7f844e7171a1ff37547. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91021029.
      date published: 2026-07-15T00:21:05Z
    audio: Sonic the Hedgehog Live
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.272
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.298
      additional property: Energy
        type: PropertyValue
        value: 0.652
      additional property: Speechiness
        type: PropertyValue
        value: 0.14
      additional property: Acousticness
        type: PropertyValue
        value: 0.736
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.73
      additional property: Liveness
        type: PropertyValue
        value: 0.669
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.269
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.785
      additional property: Key Name
      additional property: Mode Name
  track: Silent Hill 2 Live
  track: Halo Live
  track: Battlefield (feat. Rony Barrak Live)

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Silent Hill 2 Live
type: MusicRecording
duration: PT2M56S
duration ms: 176800
explicit: false
by artist: Czech Philharmonic Chamber Orchestra & Kuehn's Mixed Choir
in album: Play! Live CD/ DVD
  type: MusicAlbum
  date published: 2009-01-01
isrc code: USHM91021031
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T12:48:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x91ca61355aef809ffb4d94b491ced81b2692f803b8be3d8b6c021823bfad1dc4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958420
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958420
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91021031
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T13:33:01Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ca61355aef809ffb4d94b491ced81b2692f803b8be3d8b6c021823bfad1dc4. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91021031.
  date published: 2026-07-17T13:33:01Z
audio: Silent Hill 2 Live
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.946
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.364
  additional property: Energy
    type: PropertyValue
    value: 0.937
  additional property: Speechiness
    type: PropertyValue
    value: 0.137
  additional property: Acousticness
    type: PropertyValue
    value: 0.006
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.665
  additional property: Liveness
    type: PropertyValue
    value: 0.753
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.41
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.165
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Halo Live
type: MusicRecording
duration: PT7M26S
duration ms: 446653
explicit: false
by artist: Czech Philharmonic Chamber Orchestra & Kuehn's Mixed Choir
in album: Play! Live CD/ DVD
  type: MusicAlbum
  date published: 2009-01-01
isrc code: USHM91021032
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T06:41:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1bb4a0544fe1c3d5decec0491a83cc0d874e2f0a002acdc72c6c1188b4b53c7c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958111
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958111
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91021032
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T09:43:52Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb4a0544fe1c3d5decec0491a83cc0d874e2f0a002acdc72c6c1188b4b53c7c. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:43:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91021032.
  date published: 2026-07-15T09:43:52Z
audio: Halo Live
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 77.54
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.099
  additional property: Energy
    type: PropertyValue
    value: 0.543
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.741
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.72
  additional property: Liveness
    type: PropertyValue
    value: 0.667
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.054
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.998
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Battlefield (feat. Rony Barrak Live)
type: MusicRecording
duration: PT6M41S
duration ms: 401400
explicit: false
by artist: Czech Philharmonic Chamber Orchestra & Kuehn's Mixed Choir
in album: Play! Live CD/ DVD
  type: MusicAlbum
  date published: 2009-01-01
isrc code: USHM91021034
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T05:04:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7ca31bba09fda45004ddcd3fdf5b5359427e48a6efa3788446bfc7d27682470d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956476
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956476
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91021034
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T09:04:44Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca31bba09fda45004ddcd3fdf5b5359427e48a6efa3788446bfc7d27682470d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91021034.
  date published: 2026-07-03T09:04:44Z
audio: Battlefield (feat. Rony Barrak Live)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.2
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.427
  additional property: Energy
    type: PropertyValue
    value: 0.801
  additional property: Speechiness
    type: PropertyValue
    value: 0.146
  additional property: Acousticness
    type: PropertyValue
    value: 0.638
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.89
  additional property: Liveness
    type: PropertyValue
    value: 0.731
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.146
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.707
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major