Palau de la Música Vocal Quartet
type: MusicGroup
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followers: 20
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-17T08:10:43Z
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track: Misa Criolla: II. Gloria (Version for Solo Violin, Vocal Quartet, Percussion, Charango, Guitar and String Orchestra)
track: Misa Criolla: V. Agnus Dei (Version for Solo Violin, Vocal Quartet, Percussion and String Orchestra)
track: Misa Criolla: I. Kyrie (Version for Solo Violin, Vocal Quartet, Percussion and String Orchestra)
track: Misa Criolla: III. Credo (Version for Solo Violin, Vocal Quartet, Percussion, Charango, Guitar and String Orchestra)
track: Misa Criolla: IV. Sanctus (Version for Solo Violin, Vocal Quartet, Percussion, Charango, Guitar and String Orchestra)

Misa Criolla: II. Gloria (Version for Solo Violin, Vocal Quartet, Percussion, Charango, Guitar and String Orchestra)
type: MusicRecording
duration: PT5M30S
duration ms: 330480
explicit: false
by artist: Ariel Ramírez
by artist: Daniel Hope
by artist: Palau de la Música Vocal Quartet
by artist: Michael Metzler
by artist: Rubén Dubrovsky
by artist: Sebastián Sciaraffia
by artist: Zürcher Kammerorchester
in album: Hope
  type: MusicAlbum
  date published: 2021-09-03
isrc code: DEN962031002
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962031002
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
additional property: ProofProfileEvidenceStatus
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  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2164444ce0fd20c3a799e85653ec4a21819e69a9a673aa715fcb55bc14486adc. 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/DEN962031002.
  date published: 2026-07-08T03:20:19Z
audio: Misa Criolla: II. Gloria (Version for Solo Violin, Vocal Quartet, Percussion, Charango, Guitar and String Orchestra)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.506
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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Misa Criolla: V. Agnus Dei (Version for Solo Violin, Vocal Quartet, Percussion and String Orchestra)
type: MusicRecording
duration: PT5M34S
duration ms: 334053
explicit: false
by artist: Ariel Ramírez
by artist: Daniel Hope
by artist: Palau de la Música Vocal Quartet
by artist: Michael Metzler
by artist: Zürcher Kammerorchester
in album: Hope
  type: MusicAlbum
  date published: 2021-09-03
isrc code: DEN962031005
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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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 0x0646647736cae34269388894f3afcdfb5de5864f3de5a6f1a92f201b19c6f01e. 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/DEN962031005.
  date published: 2026-07-08T03:20:19Z
audio: Misa Criolla: V. Agnus Dei (Version for Solo Violin, Vocal Quartet, Percussion and String Orchestra)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Key Name
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    value: A
  additional property: Mode Name
    type: PropertyValue
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Misa Criolla: I. Kyrie (Version for Solo Violin, Vocal Quartet, Percussion and String Orchestra)
type: MusicRecording
duration: PT3M50S
duration ms: 230280
explicit: false
by artist: Ariel Ramírez
by artist: Daniel Hope
by artist: Palau de la Música Vocal Quartet
by artist: Michael Metzler
by artist: Zürcher Kammerorchester
in album: Hope
  type: MusicAlbum
  date published: 2021-09-03
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27eecd4e119cc1ec2180a3a3af0572cfebb82202725f7cf7bbc2aa465c9ca3f8. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/DEN962031001.
  date published: 2026-07-30T16:10:47Z
audio: Misa Criolla: I. Kyrie (Version for Solo Violin, Vocal Quartet, Percussion and String Orchestra)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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isrc code: DEN962031001
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
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  value: 2026-07-30T16:10:47+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

Misa Criolla: III. Credo (Version for Solo Violin, Vocal Quartet, Percussion, Charango, Guitar and String Orchestra)
type: MusicRecording
duration: PT3M10S
duration ms: 190480
explicit: false
by artist: Ariel Ramírez
by artist: Daniel Hope
by artist: Palau de la Música Vocal Quartet
by artist: Michael Metzler
by artist: Rubén Dubrovsky
by artist: Sebastián Sciaraffia
by artist: Zürcher Kammerorchester
in album: Hope
  type: MusicAlbum
  date published: 2021-09-03
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481dc88cc57768afe909d94f30d0d4c547d7ffb74e19b3fad71ce0750701c197. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEN962031003.
  date published: 2026-07-31T20:22:46Z
audio: Misa Criolla: III. Credo (Version for Solo Violin, Vocal Quartet, Percussion, Charango, Guitar and String Orchestra)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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isrc code: DEN962031003
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:22:46+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

Misa Criolla: IV. Sanctus (Version for Solo Violin, Vocal Quartet, Percussion, Charango, Guitar and String Orchestra)
type: MusicRecording
duration: PT2M19S
duration ms: 139440
explicit: false
by artist: Ariel Ramírez
by artist: Daniel Hope
by artist: Palau de la Música Vocal Quartet
by artist: Michael Metzler
by artist: Rubén Dubrovsky
by artist: Sebastián Sciaraffia
by artist: Zürcher Kammerorchester
in album: Hope
  type: MusicAlbum
  date published: 2021-09-03
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ca22f3d580be14ad6446d901819725e32646e4ece8207b0a6ba11fccd8f415. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEN962031004.
  date published: 2026-07-31T19:53:13Z
audio: Misa Criolla: IV. Sanctus (Version for Solo Violin, Vocal Quartet, Percussion, Charango, Guitar and String Orchestra)
  type: AudioObject
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  additional property: Musical Key
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  additional property: Danceability
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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isrc code: DEN962031004
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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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