Kay Immer
type: MusicGroup
genre: opera
popularity: 5
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x751298b9b65d1ded46f7f93adf824c4b464b52dc8d3fbcd2f8d603d8a233ac29
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/12104f64-0889-4442-a41a-15c8b9c3b118.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/12104f64-0889-4442-a41a-15c8b9c3b118.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/12104f64-0889-4442-a41a-15c8b9c3b118
additional property: OTSTimestamp
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751298b9b65d1ded46f7f93adf824c4b464b52dc8d3fbcd2f8d603d8a233ac29. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12104f64-0889-4442-a41a-15c8b9c3b118.json and https://artists.proofprofile.net/proofs/artist/12104f64-0889-4442-a41a-15c8b9c3b118.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T06:37:25Z
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track: Der Vampyr (The Vampire): Overture
  type: MusicRecording
  duration: PT7M48S
  duration ms: 468000
  explicit: false
  by artist: Heinrich Marschner
  by artist: Markus Marquardt
  by artist: Regina Klepper
  by artist: Jonas Kaufmann
  by artist: Franz Hawlata
  by artist: Yoo-Chang Nah
  by artist: Anke Hoffmann
  by artist: Heinz Heidbüchel
  by artist: Kay Immer
  by artist: Franz Gerihsen
  by artist: Josef Otten
  by artist: Marietta Schwittay-Niedzwicki
  by artist: Dirk Schortemeier
  by artist: Thomas Dewald
  by artist: Cologne Radio Chorus
  by artist: Cologne Radio Orchestra
  by artist: Helmut Froschauer
  in album: Marschner: Der Vampyr
    type: MusicAlbum
    date published: 2013-10-29
  isrc code: DEB261300301
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
    value: 2026-06-25T22:09:15+00:00
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    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x27ec7aaed7f8b50d02abb3192c1f41b17dc95cc01f09ca5b9d0308ced523f43a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300301
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x27ec7aaed7f8b50d02abb3192c1f41b17dc95cc01f09ca5b9d0308ced523f43a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300301 — a six-check JSON result.
    date published: 2026-07-02T03:55:08Z
  audio: Der Vampyr (The Vampire): Overture
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.233
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.365
    additional property: Energy
      type: PropertyValue
      value: 0.185
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.957
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.903
    additional property: Liveness
      type: PropertyValue
      value: 0.077
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.113
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.649
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Der Vampyr (The Vampire): Act I Scene 1: Introduction: Ihr Hexen und Geister (Meister, Ruthven, Chorus)
  type: MusicRecording
  duration: PT5M4S
  duration ms: 304693
  explicit: false
  by artist: Heinrich Marschner
  by artist: Markus Marquardt
  by artist: Regina Klepper
  by artist: Jonas Kaufmann
  by artist: Franz Hawlata
  by artist: Yoo-Chang Nah
  by artist: Anke Hoffmann
  by artist: Heinz Heidbüchel
  by artist: Kay Immer
  by artist: Franz Gerihsen
  by artist: Josef Otten
  by artist: Marietta Schwittay-Niedzwicki
  by artist: Dirk Schortemeier
  by artist: Thomas Dewald
  by artist: Cologne Radio Chorus
  by artist: Cologne Radio Orchestra
  by artist: Helmut Froschauer
  in album: Marschner: Der Vampyr
    type: MusicAlbum
    date published: 2013-10-29
  isrc code: DEB261300302
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T07:02:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf50d6230dd3fa4e3c92d8dae65a334b9380aaf6053767b3f127e709413913c48
  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
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300302
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0xf50d6230dd3fa4e3c92d8dae65a334b9380aaf6053767b3f127e709413913c48. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300302 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Der Vampyr (The Vampire): Act I Scene 1: Introduction: Ihr Hexen und Geister (Meister, Ruthven, Chorus)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 161.512
    additional property: Musical Key
    additional property: Mode (Major/Minor)
    additional property: Time Signature
    additional property: Danceability
    additional property: Energy
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Der Vampyr (The Vampire): Act I Scene 2: Recitative and Aria: Ha! Noch einen ganzen Tag! - Ha! WelcheLust (Ruthven)

Musical Key
type: PropertyValue
value: 7

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.416

Energy
type: PropertyValue
value: 0.122

Speechiness
type: PropertyValue
value: 0.074

Acousticness
type: PropertyValue
value: 0.978

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.088

Valence (Positivity)
type: PropertyValue
value: 0.194

Loudness (dB)
type: PropertyValue
value: -22.508

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Der Vampyr (The Vampire): Act I Scene 2: Recitative and Aria: Ha! Noch einen ganzen Tag! - Ha! WelcheLust (Ruthven)
type: MusicRecording
duration: PT6M4S
duration ms: 364373
explicit: false
by artist: Heinrich Marschner
by artist: Markus Marquardt
by artist: Regina Klepper
by artist: Jonas Kaufmann
by artist: Franz Hawlata
by artist: Yoo-Chang Nah
by artist: Anke Hoffmann
by artist: Heinz Heidbüchel
by artist: Kay Immer
by artist: Franz Gerihsen
by artist: Josef Otten
by artist: Marietta Schwittay-Niedzwicki
by artist: Dirk Schortemeier
by artist: Thomas Dewald
by artist: Cologne Radio Chorus
by artist: Cologne Radio Orchestra
by artist: Helmut Froschauer
in album: Marschner: Der Vampyr
  type: MusicAlbum
  date published: 2013-10-29
isrc code: DEB261300303
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:06:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2bf12a7e132238c7d7f0aae67a8af403c9d7da0698bd9a1b4945480bbcf841e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300303
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
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 0xe2bf12a7e132238c7d7f0aae67a8af403c9d7da0698bd9a1b4945480bbcf841e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300303 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Der Vampyr (The Vampire): Act I Scene 2: Recitative and Aria: Ha! Noch einen ganzen Tag! - Ha! WelcheLust (Ruthven)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.976
  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: 0.356
  additional property: Energy
    type: PropertyValue
    value: 0.209
  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.013
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.336
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.257
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor