The Royal Opera Chorus
type: MusicGroup
genre: opera
popularity: 12
followers: 108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf4be8af24e8e4bed50556aba59dad4395772c1788d772088892aa996afa5ca8
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbf97367-fe8a-48e3-996b-962bced34bd2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cbf97367-fe8a-48e3-996b-962bced34bd2
additional property: OTSTimestamp
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  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4be8af24e8e4bed50556aba59dad4395772c1788d772088892aa996afa5ca8. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbf97367-fe8a-48e3-996b-962bced34bd2.json and https://artists.proofprofile.net/proofs/artist/cbf97367-fe8a-48e3-996b-962bced34bd2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0xbf4be8af24e8e4bed50556aba59dad4395772c1788d772088892aa996afa5ca8","name":"The Royal Opera Chorus","registered_at":"2026-06-15T02:03:20Z","symbol":"NIM0647468","token_address":"0xbd53cb54023bb0d861d1438bd59f94e27099f634","type":"artist","uuid":"cbf97367-fe8a-48e3-996b-962bced34bd2"}
album: Britten, Gloriana, First Performance (Live)
  type: MusicAlbum
  date published: 2009
album: Handel: Samson (Live)
  type: MusicAlbum
  date published: 2009
album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2005-10-01
  track: The Bartered Bride, Act I Scene V: Introduction. Polka
  track: The Bartered Bride, Act I Scene I: Time at last for celebration
album: Britten: Paul Bunyan
  type: MusicAlbum
  date published: 1999-11-01
album: Heise: Drot og marsk (Live)
  type: MusicAlbum
  date published: 2021-02-05
album: Opera -I Pagliacci
  type: MusicAlbum
  date published: 2011-02-10
album: Opera - Un Giorno Di Regno
  type: MusicAlbum
  date published: 2011-02-10
album: Opera - Mefistofele
  type: MusicAlbum
  date published: 2011-02-10
album: Opera - La Forza Del Destino
  type: MusicAlbum
  date published: 2011-02-10
album: Opera - La Figlia Del Reggimento
  type: MusicAlbum
  date published: 2011-02-10
album: Opera - L'Elisir D'Amore
  type: MusicAlbum
  date published: 2011-02-10
album: Opera - Il Matrimonio Segreto
  type: MusicAlbum
  date published: 2011-02-10
album: Rimsky-Korsakov, The Golden Cockerel, Igor Markevitch (Live)
  type: MusicAlbum
  date published: 2009
album: Britten: Peter Grimes (Live)
  type: MusicAlbum
  date published: 2009
album: Mozart: Così fan tutte, K. 588 (Live)
  type: MusicAlbum
  date published: 2014-10-28
album: Puccini: Tosca (Live)
  type: MusicAlbum
  date published: 2014-07-01

The Bartered Bride, Act I Scene V: Introduction. Polka
type: MusicRecording
duration: PT4M39S
duration ms: 279800
explicit: false
by artist: Bedřich Smetana
by artist: Sir Charles Mackerras
by artist: Philharmonic Orchestra
by artist: The Royal Opera Chorus
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2005-10-01
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
isrc code: GBLWD0510214
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T03:37:08+00:00
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9719900014f681e8161f1936fad32da5233160d7bcbde6bbd4a30e6c8c9d2483. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLWD0510214.
  date published: 2026-06-13T17:25:41Z
audio: The Bartered Bride, Act I Scene V: Introduction. Polka
  type: AudioObject
  additional property: Tempo (BPM)
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    type: PropertyValue
    value: 0
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    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.869
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.053
  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.45
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.212
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Bartered Bride, Act I Scene I: Time at last for celebration
type: MusicRecording
duration: PT4M36S
duration ms: 276266
explicit: false
by artist: Bedřich Smetana
by artist: Sir Charles Mackerras
by artist: Philharmonic Orchestra
by artist: The Royal Opera Chorus
in album: Smetana: The Bartered Bride
  type: MusicAlbum
  date published: 2005-10-01
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89aef1e979a23829cd71f6d149b329aa87a284bfe9a99add1d4f8b90272df820. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBLWD0510202.
  date published: 2026-07-31T09:25:34Z
audio: The Bartered Bride, Act I Scene I: Time at last for celebration
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    value: 5
  additional property: Danceability
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    type: PropertyValue
    value: 0.142
  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.207
  additional property: Liveness
    type: PropertyValue
    value: 0.092
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.213
  additional property: Loudness (dB)
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    value: -21.972
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBLWD0510202
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0510202
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960379
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960379
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:25:34+00:00
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