Concerto Köln Academy
type: MusicGroup
popularity: 3
followers: 23
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc8dd2f9df8fa4f20fd117694fa37aa23295b71604f97d25886963b8a253f1186
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/757c0e7b-b159-469d-9e4f-9e3047986a48.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/757c0e7b-b159-469d-9e4f-9e3047986a48.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/757c0e7b-b159-469d-9e4f-9e3047986a48
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc8dd2f9df8fa4f20fd117694fa37aa23295b71604f97d25886963b8a253f1186","name":"Concerto Köln Academy","registered_at":"2026-06-17T06:27:51Z","symbol":"NIM1309627","token_address":"0x02a315a84eeafc9f02d420a832cdb2c136a2855e","type":"artist","uuid":"757c0e7b-b159-469d-9e4f-9e3047986a48"}
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 0xc8dd2f9df8fa4f20fd117694fa37aa23295b71604f97d25886963b8a253f1186. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/757c0e7b-b159-469d-9e4f-9e3047986a48.json and https://artists.proofprofile.net/proofs/artist/757c0e7b-b159-469d-9e4f-9e3047986a48.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc8dd2f9df8fa4f20fd117694fa37aa23295b71604f97d25886963b8a253f1186","name":"Concerto Köln Academy","registered_at":"2026-06-17T06:27:51Z","symbol":"NIM1309627","token_address":"0x02a315a84eeafc9f02d420a832cdb2c136a2855e","type":"artist","uuid":"757c0e7b-b159-469d-9e4f-9e3047986a48"}
album: Haydn: Die Jahreszeiten, Hob. XXI:3 / Der Frühling: No. 2, Komm, holder Lenz!
  type: MusicAlbum
  date published: 2022-04-22
  track: Die Jahreszeiten, Hob. XXI:3 / Der Frühling: No. 2, Komm, holder Lenz!
    type: MusicRecording
    duration: PT3M33S
    duration ms: 213975
    explicit: false
    by artist: Joseph Haydn
    by artist: Orpheus Vokalensemble
    by artist: Concerto Köln Academy
    by artist: Marcus Creed
    in album: Haydn: Die Jahreszeiten, Hob. XXI:3 / Der Frühling: No. 2, Komm, holder Lenz!
      type: MusicAlbum
      date published: 2022-04-22
    popularity: 1
    isrc code: DEB112200302
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T11:24:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x995c6b25998db8bc1fae3af41b0e8e232c8f29e32cadd785ab26a2df1c52d339
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959128
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959128
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB112200302
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T12:33:25Z
    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 0x995c6b25998db8bc1fae3af41b0e8e232c8f29e32cadd785ab26a2df1c52d339. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEB112200302 — a six-check JSON result.
      date published: 2026-07-22T12:33:25Z
    audio: Die Jahreszeiten, Hob. XXI:3 / Der Frühling: No. 2, Komm, holder Lenz!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.789
      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: 0.265
      additional property: Energy
        type: PropertyValue
        value: 0.055
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.986
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.423
      additional property: Liveness
        type: PropertyValue
        value: 0.228
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.083
      additional property: Loudness (dB)
        type: PropertyValue
        value: -27.136
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
track: Die Jahreszeiten, Hob. XXI:3 / Der Frühling: No. 2, Komm, holder Lenz!
  type: MusicRecording
  duration: PT3M33S
  duration ms: 213975
  explicit: false
  by artist: Joseph Haydn
  by artist: Orpheus Vokalensemble
  by artist: Concerto Köln Academy
  by artist: Marcus Creed
  in album: Haydn: Die Jahreszeiten
    type: MusicAlbum
    date published: 2022-05-06
  isrc code: DEB112200302
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x995c6b25998db8bc1fae3af41b0e8e232c8f29e32cadd785ab26a2df1c52d339
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960389
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960389
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB112200302
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T10:20:10Z
  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 0x995c6b25998db8bc1fae3af41b0e8e232c8f29e32cadd785ab26a2df1c52d339. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB112200302 — a six-check JSON result.
    date published: 2026-07-31T10:20:10Z
  audio: Die Jahreszeiten, Hob. XXI:3 / Der Frühling: No. 2, Komm, holder Lenz!
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.789
    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: 0.265
    additional property: Energy
      type: PropertyValue
      value: 0.055
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.986
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.423
    additional property: Liveness
      type: PropertyValue
      value: 0.228
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.083

Loudness (dB)
type: PropertyValue
value: -27.136

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major