Bulgarian Symphony Choir
type: MusicGroup
genre: opera
popularity: 23
followers: 42
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe6d3eb4fa48b1151e9aec4321a49323e103415b4eb1f7c210171cbdbfc7aa24
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6d3eb4fa48b1151e9aec4321a49323e103415b4eb1f7c210171cbdbfc7aa24. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d7ec0cf-8d44-429b-99cc-be2cdad1f6ef.json and https://artists.proofprofile.net/proofs/artist/9d7ec0cf-8d44-429b-99cc-be2cdad1f6ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xbe6d3eb4fa48b1151e9aec4321a49323e103415b4eb1f7c210171cbdbfc7aa24","name":"Bulgarian Symphony Choir","registered_at":"2026-06-12T05:45:07Z","symbol":"NIM0204521","token_address":"0xce8051338ebee2669e05201cf5926cb592b80af4","type":"artist","uuid":"9d7ec0cf-8d44-429b-99cc-be2cdad1f6ef"}
track: Il Gladiatore
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243253
  explicit: false
  by artist: Hans Zimmer
  by artist: Luciano Pavarotti
  by artist: Bulgarian Symphony Choir
  by artist: Stefano "Tellus" Nanni
  by artist: Bulgarian Symphony Orchestra
  by artist: Rob Mathes
  in album: Ti Adoro
    type: MusicAlbum
    date published: 2003-01-01
  isrc code: GBBBA0340820
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
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    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x78e1ad39d4d5681704b8c791c559a23387e90429c396408d50e249e2a266b570
  additional property: OTSHash
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    type: PropertyValue
    value: https://blockstream.info/api/block-height/953513
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0340820
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  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 0x78e1ad39d4d5681704b8c791c559a23387e90429c396408d50e249e2a266b570. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBBBA0340820.
    date published: 2026-06-13T12:47:07Z
  audio: Il Gladiatore
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 107.075
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.192
    additional property: Energy
      type: PropertyValue
      value: 0.386
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.933
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.118
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.222
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.668
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Il Gladiatore
  type: MusicRecording
  duration: PT4M8S
  duration ms: 248000
  explicit: false
  by artist: Luciano Pavarotti
  by artist: Bulgarian Symphony Choir
  by artist: Stefano "Tellus" Nanni
  by artist: Bulgarian Symphony Orchestra
  by artist: Rob Mathes
  in album: The Singer And The Song
    type: MusicAlbum
    date published: 2010-01-01
  genre: classical-tenor
  genre: italian-tenor
  genre: operatic-pop
  genre: opera
  genre: canzone-napoletana
  isrc code: GBBBA0340820
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
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    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x78e1ad39d4d5681704b8c791c559a23387e90429c396408d50e249e2a266b570
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956312
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0340820
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e1ad39d4d5681704b8c791c559a23387e90429c396408d50e249e2a266b570. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0340820.
    date published: 2026-07-02T05:09:12Z
  audio: Il Gladiatore
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.988
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.142
    additional property: Energy
      type: PropertyValue
      value: 0.263
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    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

Acousticness
type: PropertyValue
value: 0.933

Instrumentalness
type: PropertyValue
value: 0.001

Liveness
type: PropertyValue
value: 0.107

Valence (Positivity)
type: PropertyValue
value: 0.216

Loudness (dB)
type: PropertyValue
value: -18.768

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor