Classic Hertz
type: MusicGroup
popularity: 10
followers: 1355
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc7f8c1914284ebd9913494c83fd4a0876749a615f38140e80414aa83238ef7da
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac6927ac-ea70-4458-8b99-ae3d8355d452.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac6927ac-ea70-4458-8b99-ae3d8355d452.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ac6927ac-ea70-4458-8b99-ae3d8355d452
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc7f8c1914284ebd9913494c83fd4a0876749a615f38140e80414aa83238ef7da","name":"Classic Hertz","registered_at":"2026-06-20T10:05:04Z","symbol":"NIM1588091","token_address":"0xa38e2d096d46e2af0a55615a691b8dfa8e2695ba","type":"artist","uuid":"ac6927ac-ea70-4458-8b99-ae3d8355d452"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f8c1914284ebd9913494c83fd4a0876749a615f38140e80414aa83238ef7da. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac6927ac-ea70-4458-8b99-ae3d8355d452.json and https://artists.proofprofile.net/proofs/artist/ac6927ac-ea70-4458-8b99-ae3d8355d452.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0xc7f8c1914284ebd9913494c83fd4a0876749a615f38140e80414aa83238ef7da","name":"Classic Hertz","registered_at":"2026-06-20T10:05:04Z","symbol":"NIM1588091","token_address":"0xa38e2d096d46e2af0a55615a691b8dfa8e2695ba","type":"artist","uuid":"ac6927ac-ea70-4458-8b99-ae3d8355d452"}
album: Hugo Wolf Best
  type: MusicAlbum
  date published: 2021-07-12
album: Adagio
  type: MusicAlbum
  date published: 2024-07-31
album: Christmas Concert
  type: MusicAlbum
  date published: 2024-04-03
album: Classic Hertz Giuseppe Tartini Best
  type: MusicAlbum
  date published: 2021-09-02
album: Brazzillion Train
  type: MusicAlbum
  date published: 2023-03-12
album: Walz of Flowers
  type: MusicAlbum
  date published: 2024-07-17
album: Classical Music Mozart, Vol. 5
  type: MusicAlbum
  date published: 2024-02-20
album: Classical Music, Vol. 11
  type: MusicAlbum
  date published: 2024-02-11
album: Classical Music, Vol. 10
  type: MusicAlbum
  date published: 2023-07-17
album: Classical Music, Vol. 9
  type: MusicAlbum
  date published: 2023-07-13
album: Classical Music Mozart, Vol. 15
  type: MusicAlbum
  date published: 2022-07-12
album: Classical Music Mozart, Vol. 14
  type: MusicAlbum
  date published: 2022-07-10
album: Classical Music Mozart, Vol. 13
  type: MusicAlbum
  date published: 2022-07-09
album: National Anthem of the Republics, Vol. 1
  type: MusicAlbum
  date published: 2022-06-21
  track: Marseillaise National Anthem of France
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228287
    explicit: false
    by artist: National Anthem
    by artist: National Anthem Band
    by artist: Kpm National Anthems
    by artist: Classic Hertz
    in album: National Anthem of the Republics, Vol. 1
      type: MusicAlbum
      date published: 2022-06-21
    isrc code: QZK6K2235328
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-08-01T01:17:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6bdc285d75f3b8f6d659eaf3fe486bf9400435d78dfb30df0afccd69e9ba854c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960494
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960494
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6K2235328
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-08-01T01:44:32Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdc285d75f3b8f6d659eaf3fe486bf9400435d78dfb30df0afccd69e9ba854c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZK6K2235328.
      date published: 2026-08-01T01:44:32Z
    audio: Marseillaise National Anthem of France
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.607
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.638
      additional property: Energy
        type: PropertyValue
        value: 0.354
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.721
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.867
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.284
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.608
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: National Anthem of The Australia
    type: MusicRecording
    duration: PT0M54S
    duration ms: 54246
    explicit: false
    by artist: National Anthem
    by artist: National Anthem Band
    by artist: Kpm National Anthems
    by artist: Classic Hertz
    in album: National Anthem of the Republics, Vol. 1
      type: MusicAlbum
      date published: 2022-06-21
    isrc code: QZK6K2235334
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-29T22:27:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x269bb111e23f8120733f1abbd74ece5173a2cf4fad7c7442fbc3b130e72caa4c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960160
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960160
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6K2235334
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-29T22:48:59Z
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: National Anthem of The Australia
  track: National Anthem of The Austria
  track: National Anthem of The Azerbaijan
album: Classical Music Beethoven, Vol. 2
album: Classical Music, Vol. 7
album: Tribute Music Cover Vol 1
album: Classical Music Mozart, Vol. 12
album: Classical Music Mozart, Vol. 11
album: Classical Music, Vol. 5
album: Classical Music Johann Bach (Vol 1)
album: Classical Music Beethoven (Vol 1)
album: Classical Music Mozart (Vol 4)
album: Classical Music Claude Debussy (Vol I)
album: Classical Music Mozart (Vol 3)
album: Peter Warlock Best
album: Classical Music (Vol 2)
album: Thomas Weelkes Best (Vol 2)
album: Classical Music Mozart (Vol 2)
album: Thomas Weelkes Best (Vol 1)
album: Frederic Chopin Preludes Best
album: Wolfgang Amadeus Mozart Best (Vol I)
album: Thomas Tallis Spiccato
album: Classic Hertz Best (Vol 1)
album: Henryk Wieniawski Best (Vol 2)
album: Henryk Wieniawski Best (Vol 1)
album: Tomas Luis de Victoria Best (Vol 2)
album: Tomas Luis de Victoria Best (Vol 1)
album: Thomas Weelkes Best
album: Thomas Tallis Best
album: Ukraine Anthem
album: The little Shepherd Tres Modere

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269bb111e23f8120733f1abbd74ece5173a2cf4fad7c7442fbc3b130e72caa4c. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZK6K2235334.
date published: 2026-07-29T22:48:59Z

National Anthem of The Australia
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 114.637
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 6
additional property: Danceability
  type: PropertyValue
  value: 0.322
additional property: Energy
  type: PropertyValue
  value: 0.254
additional property: Speechiness
  type: PropertyValue
  value: 0.028
additional property: Acousticness
  type: PropertyValue
  value: 0.682
additional property: Instrumentalness
  type: PropertyValue
  value: 0.906
additional property: Liveness
  type: PropertyValue
  value: 0.09
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.846
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.61
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

National Anthem of The Austria
type: MusicRecording
duration: PT1M29S
duration ms: 89589
explicit: false
by artist: National Anthem
by artist: National Anthem Band
by artist: Kpm National Anthems
by artist: Classic Hertz
in album: National Anthem of the Republics, Vol. 1
  type: MusicAlbum
  date published: 2022-06-21
isrc code: QZK6K2235335
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T18:38:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a2230a2acc655d54c1c271a4d6f332928a8d32651699f996efb41580fa81180
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960294
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960294
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6K2235335
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:46:00Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2230a2acc655d54c1c271a4d6f332928a8d32651699f996efb41580fa81180. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZK6K2235335.
  date published: 2026-07-30T18:46:00Z
audio: National Anthem of The Austria
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 167.571
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.078
  additional property: Energy
    type: PropertyValue
    value: 0.168
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.533
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.752
  additional property: Liveness
    type: PropertyValue
    value: 0.521
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.438
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.334
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

National Anthem of The Azerbaijan
type: MusicRecording
duration: PT2M27S
duration ms: 147945
explicit: false
by artist: National Anthem
by artist: National Anthem Band
by artist: Kpm National Anthems
by artist: Classic Hertz
in album: National Anthem of the Republics, Vol. 1
  type: MusicAlbum
  date published: 2022-06-21
isrc code: QZK6K2235336
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T09:09:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfb7f477b21f260893f52a0511b0ad9e23e7503e3e16bfe877f70e1579a97c7cb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960236
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960236
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6K2235336
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:37:10Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7f477b21f260893f52a0511b0ad9e23e7503e3e16bfe877f70e1579a97c7cb. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZK6K2235336.
  date published: 2026-07-30T09:37:10Z
audio: National Anthem of The Azerbaijan
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.493
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.189
  additional property: Energy
    type: PropertyValue
    value: 0.187
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.679
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.868
  additional property: Liveness
    type: PropertyValue
    value: 0.054
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.217
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.018
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Classical Music Beethoven, Vol. 2
type: MusicAlbum
date published: 2022-05-13

Classical Music, Vol. 7
type: MusicAlbum
date published: 2022-05-10

Tribute Music Cover Vol 1
type: MusicAlbum
date published: 2022-04-28

Classical Music Mozart, Vol. 12
type: MusicAlbum
date published: 2022-04-23

Classical Music Mozart, Vol. 11
type: MusicAlbum
date published: 2022-04-05

Classical Music, Vol. 5
type: MusicAlbum
date published: 2022-03-24

Classical Music Johann Bach (Vol 1)
type: MusicAlbum
date published: 2022-01-14
track: French Suite No 1 in D BWV 812
  type: MusicRecording
  duration: PT7M20S
  duration ms: 440000
  explicit: false
  by artist: Johann Bach
  by artist: Classic Hertz
  in album: Classical Music Johann Bach (Vol 1)
    type: MusicAlbum
    date published: 2022-01-14
  isrc code: QZTRX2106763
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T22:26:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6ad37887425bbb34605abb0f8d764086f842d6d85f2507b9d87c365b782c48f1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960327
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960327
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTRX2106763
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T00:26:26Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad37887425bbb34605abb0f8d764086f842d6d85f2507b9d87c365b782c48f1. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZTRX2106763.
    date published: 2026-07-31T00:26:26Z
  audio: French Suite No 1 in D BWV 812
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.655
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.293
    additional property: Energy
      type: PropertyValue
      value: 0.481
    additional property: Speechiness
      type: PropertyValue
      value: 0.06
    additional property: Acousticness
      type: PropertyValue
      value: 0.51
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.945
    additional property: Liveness
      type: PropertyValue
      value: 0.278
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.698
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.789
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: French Suite No 2 in C BWV 813
  type: MusicRecording
  duration: PT7M13S
  duration ms: 433000
  explicit: false
  by artist: Johann Bach
  by artist: Classic Hertz
  in album: Classical Music Johann Bach (Vol 1)
    type: MusicAlbum
    date published: 2022-01-14
  isrc code: QZTRX2106765
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T11:44:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3c0cd8faa946205baaf43e339f13bdfb6b0581e75ebaa503a1f47d1c6c6ee7c4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960397
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960397
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTRX2106765
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T12:24:41Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0cd8faa946205baaf43e339f13bdfb6b0581e75ebaa503a1f47d1c6c6ee7c4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZTRX2106765.
    date published: 2026-07-31T12:24:41Z
  audio: French Suite No 2 in C BWV 813
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.897
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.281
    additional property: Energy
      type: PropertyValue
      value: 0.443
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.522
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.922
    additional property: Liveness
      type: PropertyValue
      value: 0.146
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.813
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.624
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: French Suite No 3 in B BWV 814
  type: MusicRecording
  duration: PT7M34S
  duration ms: 454714
  explicit: false
  by artist: Johann Bach
  by artist: Classic Hertz
  in album: Classical Music Johann Bach (Vol 1)
    type: MusicAlbum
    date published: 2022-01-14
  isrc code: QZTRX2106768
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T13:04:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0cec7cfaf8a64502aa9e7399d9373e6cf9edb678db5de0420ee2c33861001e97
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: French Suite No 3 in B BWV 814
track: French Suite No 4 in Eb BWV 815

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTRX2106768

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cec7cfaf8a64502aa9e7399d9373e6cf9edb678db5de0420ee2c33861001e97. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZTRX2106768.
date published: 2026-07-08T03:20:19Z

French Suite No 3 in B BWV 814
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 139.367
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.267
additional property: Energy
  type: PropertyValue
  value: 0.573
additional property: Speechiness
  type: PropertyValue
  value: 0.055
additional property: Acousticness
  type: PropertyValue
  value: 0.396
additional property: Instrumentalness
  type: PropertyValue
  value: 0.935
additional property: Liveness
  type: PropertyValue
  value: 0.143
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.905
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.643
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Minor

French Suite No 4 in Eb BWV 815
type: MusicRecording
duration: PT7M13S
duration ms: 433000
explicit: false
by artist: Johann Bach
by artist: Classic Hertz
in album: Classical Music Johann Bach (Vol 1)
  type: MusicAlbum
  date published: 2022-01-14
isrc code: QZTRX2106769
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:38:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x74881cf5801c7baf51c228ac94de1c223a5cdcba4d914d6d12322bee9190af58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTRX2106769
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74881cf5801c7baf51c228ac94de1c223a5cdcba4d914d6d12322bee9190af58. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZTRX2106769.
  date published: 2026-07-31T12:24:41Z
audio: French Suite No 4 in Eb BWV 815
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.469
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.253
  additional property: Energy
    type: PropertyValue
    value: 0.559
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.488
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.843
  additional property: Liveness
    type: PropertyValue
    value: 0.123
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.898
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.935
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Classical Music Beethoven (Vol 1)
type: MusicAlbum
date published: 2021-11-28
track: Moonlight Sonata
  type: MusicRecording
  duration: PT5M51S
  duration ms: 351939
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Classic Hertz
  in album: Classical Music Beethoven (Vol 1)
    type: MusicAlbum
    date published: 2021-11-28
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: GBWUL2192623
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T06:54:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcb98a4d0763f76b41fc233ad7f6c109a00a27d4517d141f0b333fbdb4ac7fc9f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956889
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956889
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBWUL2192623
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T06:56:49Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb98a4d0763f76b41fc233ad7f6c109a00a27d4517d141f0b333fbdb4ac7fc9f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBWUL2192623.
    date published: 2026-07-06T06:56:49Z
  audio: Moonlight Sonata
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 152.008
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.44
    additional property: Energy
      type: PropertyValue
      value: 0.393
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.932
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.955
    additional property: Liveness
      type: PropertyValue
      value: 0.104
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.122
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.661
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Classical Music Mozart (Vol 4)
type: MusicAlbum
date published: 2021-11-26
track: Mozart Turkis March
  type: MusicRecording
  duration: PT2M5S
  duration ms: 125806
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Classic Hertz
  in album: Classical Music Mozart (Vol 4)
    type: MusicAlbum
    date published: 2021-11-26
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: GBWUL2190700
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T13:03:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2815457f0d0a042c032339c96da9a82506e0d0332e82a4ac9ae0d815847fbf12
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960111
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960111
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBWUL2190700
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T13:21:01Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2815457f0d0a042c032339c96da9a82506e0d0332e82a4ac9ae0d815847fbf12. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBWUL2190700.
    date published: 2026-07-29T13:21:01Z
  audio: Mozart Turkis March
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.325
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.565
    additional property: Energy
      type: PropertyValue
      value: 0.708
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.866
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.99
    additional property: Liveness
      type: PropertyValue
      value: 0.206
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.961
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.329
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Classical Music Claude Debussy (Vol I)
type: MusicAlbum
date published: 2021-11-15

Classical Music Mozart (Vol 3)
type: MusicAlbum
date published: 2021-11-12

Peter Warlock Best
type: MusicAlbum
date published: 2021-10-31

Classical Music (Vol 2)
type: MusicAlbum
date published: 2021-10-30

Thomas Weelkes Best (Vol 2)
type: MusicAlbum
date published: 2021-10-29

Classical Music Mozart (Vol 2)
type: MusicAlbum
date published: 2021-10-29
track: Serenade No 13 Salt
  type: MusicRecording
  duration: PT2M9S
  duration ms: 129229
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Classic Hertz
  in album: Classical Music Mozart (Vol 2)
    type: MusicAlbum
    date published: 2021-10-29
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: GBWUL2149131
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T23:39:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x05c931412bc36c7d010b0b04572efaea83cc03d123872936f8a0778a80be7650
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960170
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960170
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBWUL2149131
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T23:52:38Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c931412bc36c7d010b0b04572efaea83cc03d123872936f8a0778a80be7650. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/GBWUL2149131.
    date published: 2026-07-29T23:52:38Z
  audio: Serenade No 13 Salt
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.551
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.486
    additional property: Energy
      type: PropertyValue
      value: 0.402
    additional property: Speechiness
      type: PropertyValue
      value: 0.106
    additional property: Acousticness
      type: PropertyValue
      value: 0.951
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.932
    additional property: Liveness
      type: PropertyValue
      value: 0.073
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.686
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.122
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Thomas Weelkes Best (Vol 1)
type: MusicAlbum
date published: 2021-10-28

Frederic Chopin Preludes Best
type: MusicAlbum
date published: 2021-10-27

Wolfgang Amadeus Mozart Best (Vol I)
type: MusicAlbum
date published: 2021-10-26

Thomas Tallis Spiccato
type: MusicAlbum
date published: 2021-09-28

Classic Hertz Best (Vol 1)
type: MusicAlbum
date published: 2021-09-11

Henryk Wieniawski Best (Vol 2)
type: MusicAlbum
date published: 2021-07-18

Henryk Wieniawski Best (Vol 1)
type: MusicAlbum
date published: 2021-07-17

Tomas Luis de Victoria Best (Vol 2)
type: MusicAlbum
date published: 2021-07-16

Tomas Luis de Victoria Best (Vol 1)
type: MusicAlbum
date published: 2021-07-15
track: Missa Quarti Toni Christe
  type: MusicRecording
  duration: PT0M32S
  duration ms: 32000
  explicit: false
  by artist: Tomás Luis de Victoria
  by artist: Classic Hertz
  in album: Tomas Luis de Victoria Best (Vol 1)
    type: MusicAlbum
    date published: 2021-07-15
  isrc code: UKEX32124309
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T01:25:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2bbe4403dfd0c18ef017d1d054a57e9df3c75d9dec7e7740ec18aca1422cf6a0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960334
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960334
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKEX32124309
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T02:19:15Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbe4403dfd0c18ef017d1d054a57e9df3c75d9dec7e7740ec18aca1422cf6a0. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/UKEX32124309.
    date published: 2026-07-31T02:19:15Z
  audio: Missa Quarti Toni Christe
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Thomas Weelkes Best
type: MusicAlbum
date published: 2021-07-14

Thomas Tallis Best
type: MusicAlbum
date published: 2021-07-13

Ukraine Anthem
type: MusicAlbum
date published: 2024-03-20
track: Ukraine Anthem
  type: MusicRecording
  duration: PT1M33S
  duration ms: 93333
  explicit: false
  by artist: Павел Платонович Чубинский
  by artist: Украјина Химна
  by artist: Ukrainas Himna
  by artist: Ukraina Himnas
  by artist: Украина Химна
  by artist: Innu Ukraina
  by artist: Ukraina Hymne
  by artist: Hymn Ukrainy
  by artist: Ucrânia Hino
  by artist: Imnul Ucrainei
  by artist: Himne D'Ucraïna
  by artist: Ukrajina Hymna
  by artist: Україна Гімн
  by artist: Ukrainan Hymni
  by artist: Ukrainas Nationalsång
  by artist: Ukraina Hümn
  by artist: Гимн Украины
  by artist: Ukrainë Himni
  by artist: Ucraina Inno
  by artist: Ucrania Himno
  by artist: Þjóðsöngur Úkraínu
  by artist: Amhrán Na Húcráine
  by artist: Ukraine Hymne
  by artist: Ουκρανία Ύμνος
  by artist: Oekraïne Anthem
  by artist: Himno De Ucraína
  by artist: Ukrajna Himnusza
  by artist: Anthem Wcráin
  by artist: Ukrajina Himna
  by artist: Украйна Химн
  by artist: Гімн Украіны
  by artist: Ukraina Anthem
  by artist: Ukraine Anthem
  by artist: Classic Hertz
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    date published: 2024-03-20
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    value: registered
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72460409
  additional property: OTSTimestamp
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    value: 2026-08-01T03:13:03Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-08-01T03:13:03Z
  audio: Ukraine Anthem
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
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      value: 5
    additional property: Danceability
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      value: 0.495
    additional property: Energy
      type: PropertyValue
      value: 0.522
    additional property: Speechiness
      type: PropertyValue
      value: 0.071
    additional property: Acousticness
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    additional property: Instrumentalness
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      value: 0.677
    additional property: Liveness
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    additional property: Valence (Positivity)
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      value: 0.884
    additional property: Loudness (dB)
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      value: -19.514
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The little Shepherd Tres Modere
type: MusicAlbum
date published: 2024-09-25