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type: MusicGroup
genre: opera
popularity: 3
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xca02b9a3c430cee877c7115348fc32b0f9dcbafc5188ef73ff9e76435d602cc5
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b6247862-4898-4aca-9caf-64a099004b35.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/b6247862-4898-4aca-9caf-64a099004b35.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b6247862-4898-4aca-9caf-64a099004b35
additional property: OTSTimestamp
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  value: 2026-06-20T17:48:00Z
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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca02b9a3c430cee877c7115348fc32b0f9dcbafc5188ef73ff9e76435d602cc5. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6247862-4898-4aca-9caf-64a099004b35.json and https://artists.proofprofile.net/proofs/artist/b6247862-4898-4aca-9caf-64a099004b35.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0xca02b9a3c430cee877c7115348fc32b0f9dcbafc5188ef73ff9e76435d602cc5","name":"Vlad Iftinca","registered_at":"2026-06-20T15:21:45Z","symbol":"NIM1639648","token_address":"0xcabd85304c9df1af5ddc111f80f83b7294758f65","type":"artist","uuid":"b6247862-4898-4aca-9caf-64a099004b35"}
album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
  track: Il mondo della luna, Hob. XXVIII:7, Ragion nell'alma siede
    type: MusicRecording
    duration: PT5M21S
    duration ms: 321154
    explicit: false
    by artist: Joseph Haydn
    by artist: Lisette Oropesa
    by artist: Vlad Iftinca
    in album: Within / Without
      type: MusicAlbum
      date published: 2017-05-10
    isrc code: GBMJG1707414
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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    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/GBMJG1707414
    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 0xed3d45e7d718d0629c35f659a177dd6debae12dfc95f2e556ae8f69d1ab24e68. 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/GBMJG1707414 — a six-check JSON result.
      date published: 2026-07-08T03:20:19Z
    audio: Il mondo della luna, Hob. XXVIII:7, Ragion nell'alma siede
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      additional property: Tempo (BPM)
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      additional property: Musical Key
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      additional property: Liveness
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      additional property: Valence (Positivity)
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  track: 6 Lieder, Op. 57: III. Suleika
    type: MusicRecording
    duration: PT3M4S
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    by artist: Felix Mendelssohn
    by artist: Lisette Oropesa
    by artist: Vlad Iftinca
    in album: Within / Without
      type: MusicAlbum
      date published: 2017-05-10
    genre: classical
    genre: early-romantic-era
    genre: german-romanticism
    genre: classical-piano
    genre: choral
    genre: chamber-music
    isrc code: GBMJG1707418
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T15:45:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbc2a3a7dfccde17d88daf65d7f16597a8c2f869453a30e47d682c5c82290b227
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960427
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG1707418
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T15:59:18Z
    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
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      date published: 2026-07-31T15:59:18Z
    audio: 6 Lieder, Op. 57: III. Suleika
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      additional property: Tempo (BPM)
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        value: 113.428
      additional property: Musical Key
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      additional property: Danceability
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      additional property: Instrumentalness
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  track: 6 Lieder, Op. 57: IV. O Jugend, o schöne Rosenzeit!
  track: 6 Lieder, Op. 57: V. Venetianisches Gondellied
  track: 6 Lieder, Op. 57: VI. Wanderlied
  track: Four Songs, Op. 13: III. Sure on this Shining Night
  track: Canciones Clásicas Españolas: I. La mi sola, Laureola
  track: Canciones Clásicas Españolas: II. Al Amor
  track: Canciones Clásicas Españolas: III. ¿Corazón porqué pasáis...?
  track: Canciones Clásicas Españolas: IV. El majo celoso
  track: Canciones Clásicas Españolas: V. Con amores, la mi madre...
  track: Canciones Clásicas Españolas: VI. Del cabello más sutil
  track: Canciones Clásicas Españolas: VII. Chiquitita la novia
  track: Robert le diable, Act IV: Robert, toi que j'aime

Instrumentalness
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value: 0.001

Liveness
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value: 0.109

Valence (Positivity)
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value: 0.33

Loudness (dB)
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Key Name
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value: B

Mode Name
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value: Major

6 Lieder, Op. 57: IV. O Jugend, o schöne Rosenzeit!
type: MusicRecording
duration: PT2M30S
duration ms: 150692
explicit: false
by artist: Felix Mendelssohn
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: GBMJG1707419
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:29:31+00:00
additional property: CopyrightChainExplorerURL
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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: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG1707419
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
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 0x8b47f73c615159586e91585351596c6ca7dab877c43d6e6308f2356a89c7ba3f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG1707419 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: 6 Lieder, Op. 57: IV. O Jugend, o schöne Rosenzeit!
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Danceability
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  additional property: Liveness
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6 Lieder, Op. 57: V. Venetianisches Gondellied
type: MusicRecording
duration: PT2M32S
duration ms: 152944
explicit: false
by artist: Felix Mendelssohn
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: GBMJG1707420
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:42:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d675764bc1216930b982e15c84156c919a2813628864022e49043289576ec79
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG1707420
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
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 0x5d675764bc1216930b982e15c84156c919a2813628864022e49043289576ec79. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG1707420 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: 6 Lieder, Op. 57: V. Venetianisches Gondellied
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6 Lieder, Op. 57: VI. Wanderlied
type: MusicRecording
duration: PT2M3S
duration ms: 123790
explicit: false
by artist: Felix Mendelssohn
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: GBMJG1707421
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T16:14:04+00:00
additional property: CopyrightChainExplorerURL
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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: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG1707421
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T16:33:26Z
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 0xc3ac776a5c8699843af8cb3caa8c0d912b6f08f2cf84ca2450125eb9f5a8d85a. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBMJG1707421 — a six-check JSON result.
  date published: 2026-07-31T16:33:26Z
audio: 6 Lieder, Op. 57: VI. Wanderlied
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Four Songs, Op. 13: III. Sure on this Shining Night
type: MusicRecording
duration: PT2M22S
duration ms: 142392
explicit: false
by artist: Samuel Barber
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
isrc code: GBMJG1707426
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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  value: 2026-07-31T02:05:43+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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additional property: OTSVerificationAPI
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  value: 2026-07-31T02:51:48Z
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 0xea8d57ce36feb84568ddf2221eb7b051a4a9220ca79a743fb4a611214f2c0b3d. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBMJG1707426 — a six-check JSON result.
  date published: 2026-07-31T02:51:48Z
audio: Four Songs, Op. 13: III. Sure on this Shining Night
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.48
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.275
  additional property: Energy
    type: PropertyValue
    value: 0.041
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.934
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Canciones Clásicas Españolas: I. La mi sola, Laureola
type: MusicRecording
duration: PT2M45S
duration ms: 165748
explicit: false
by artist: Fernando Obradors
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
isrc code: GBMJG1707428
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T20:01:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x295767fd9e1919d4f8b40759934420694e6c9b59037e11bee31e9bf41e41dc51
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG1707428
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:09:33Z
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 0x295767fd9e1919d4f8b40759934420694e6c9b59037e11bee31e9bf41e41dc51. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBMJG1707428 — a six-check JSON result.
  date published: 2026-07-30T20:09:33Z
audio: Canciones Clásicas Españolas: I. La mi sola, Laureola
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.008
  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: 0.331
  additional property: Energy
    type: PropertyValue
    value: 0.03
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.056
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.609
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Canciones Clásicas Españolas: II. Al Amor
type: MusicRecording
duration: PT1M3S
duration ms: 63271
explicit: false
by artist: Fernando Obradors
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
isrc code: GBMJG1707429
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:15:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x444cf17acdcaaabd76809144e7dffefbdf2a20f29cdf9d123f55aa2ef0bce408
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/GBMJG1707429
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 0x444cf17acdcaaabd76809144e7dffefbdf2a20f29cdf9d123f55aa2ef0bce408. 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/GBMJG1707429 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Canciones Clásicas Españolas: II. Al Amor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.698
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.445
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.391
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.138
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.495
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Canciones Clásicas Españolas: III. ¿Corazón porqué pasáis...?
type: MusicRecording
duration: PT1M27S
duration ms: 87754
explicit: false
by artist: Fernando Obradors
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
isrc code: GBMJG1707430
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:06:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4947ba233a03cbac0812e883d63c38b2caa9ab2aa20c2b9d7d6544ee14b941d4
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/GBMJG1707430
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 0x4947ba233a03cbac0812e883d63c38b2caa9ab2aa20c2b9d7d6544ee14b941d4. 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/GBMJG1707430 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Canciones Clásicas Españolas: III. ¿Corazón porqué pasáis...?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.217
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.3
  additional property: Energy
    type: PropertyValue
    value: 0.096
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.114
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.263
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.3
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Canciones Clásicas Españolas: IV. El majo celoso
type: MusicRecording
duration: PT2M16S
duration ms: 136594
explicit: false
by artist: Fernando Obradors
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
isrc code: GBMJG1707431
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:48:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe12537fa686a7132683cd739f15cbc9288a210e4c22767fbaec8d546a6f7026b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG1707431
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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 0xe12537fa686a7132683cd739f15cbc9288a210e4c22767fbaec8d546a6f7026b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBMJG1707431 — a six-check JSON result.
  date published: 2026-07-08T08:56:20Z
audio: Canciones Clásicas Españolas: IV. El majo celoso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.733
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.375
  additional property: Energy
    type: PropertyValue
    value: 0.088
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.075
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.25
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.306
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Canciones Clásicas Españolas: V. Con amores, la mi madre...
type: MusicRecording
duration: PT1M33S
duration ms: 93176
explicit: false
by artist: Fernando Obradors
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
isrc code: GBMJG1707432
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:10:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4695e8956551e41bab45f574a81d1a7e5bcf7b523964331fd9189c4d96fe815d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG1707432
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 0x4695e8956551e41bab45f574a81d1a7e5bcf7b523964331fd9189c4d96fe815d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBMJG1707432 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Canciones Clásicas Españolas: V. Con amores, la mi madre...
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.127
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.345
  additional property: Energy
    type: PropertyValue
    value: 0.084
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.061
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.323
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Canciones Clásicas Españolas: VI. Del cabello más sutil
type: MusicRecording
duration: PT2M19S
duration ms: 139597
explicit: false
by artist: Fernando Obradors
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
isrc code: GBMJG1707433
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:38:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5683a73989b5e30a9fd4dfb50d0b53a59c06718a4049f8bb76ff532486ad5367
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/GBMJG1707433
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 0x5683a73989b5e30a9fd4dfb50d0b53a59c06718a4049f8bb76ff532486ad5367. 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/GBMJG1707433 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Canciones Clásicas Españolas: VI. Del cabello más sutil
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 169.855
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.222
  additional property: Energy
    type: PropertyValue
    value: 0.063
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.174
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.074
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.752
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Canciones Clásicas Españolas: VII. Chiquitita la novia
type: MusicRecording
duration: PT2M45S
duration ms: 165373
explicit: false
by artist: Fernando Obradors
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
  type: MusicAlbum
  date published: 2017-05-10
isrc code: GBMJG1707434
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T01:17:37+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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
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audio: Canciones Clásicas Españolas: VII. Chiquitita la novia
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Robert le diable, Act IV: Robert, toi que j'aime
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by artist: Giacomo Meyerbeer
by artist: Lisette Oropesa
by artist: Vlad Iftinca
in album: Within / Without
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  date published: 2017-05-10
genre: opera
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-07-08T03:20:19Z
audio: Robert le diable, Act IV: Robert, toi que j'aime
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