Christopher Mrofchak
type: MusicGroup
popularity: 2
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4464fdf9f0b6ce20b9a59e800289065b30c4a7e0f414518a3b8732430d9ef127
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3c54660-7e57-4d99-8f2f-26858f4868ed.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3c54660-7e57-4d99-8f2f-26858f4868ed.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d3c54660-7e57-4d99-8f2f-26858f4868ed
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4464fdf9f0b6ce20b9a59e800289065b30c4a7e0f414518a3b8732430d9ef127","name":"Christopher Mrofchak","registered_at":"2026-06-21T01:54:03Z","symbol":"NIM1783406","token_address":"0x51ede690fe7c02908cdb2f1bd74afa1321d3840b","type":"artist","uuid":"d3c54660-7e57-4d99-8f2f-26858f4868ed"}
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 0x4464fdf9f0b6ce20b9a59e800289065b30c4a7e0f414518a3b8732430d9ef127. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3c54660-7e57-4d99-8f2f-26858f4868ed.json and https://artists.proofprofile.net/proofs/artist/d3c54660-7e57-4d99-8f2f-26858f4868ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x4464fdf9f0b6ce20b9a59e800289065b30c4a7e0f414518a3b8732430d9ef127","name":"Christopher Mrofchak","registered_at":"2026-06-21T01:54:03Z","symbol":"NIM1783406","token_address":"0x51ede690fe7c02908cdb2f1bd74afa1321d3840b","type":"artist","uuid":"d3c54660-7e57-4d99-8f2f-26858f4868ed"}
track: Recuerdos de la Alhambra
  type: MusicRecording
  duration: PT5M10S
  duration ms: 310643
  explicit: false
  by artist: Francisco Tárrega
  by artist: Christopher Mrofchak
  in album: Christopher Mrofchak performs the music of Francisco Tárrega
    type: MusicAlbum
    date published: 2024-08-02
  genre: spanish-classical
  genre: late-romantic-era
  isrc code: QZHN82402029
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T10:40:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd081fb516bdbaf5355d3182828f3eadced4068996fb52833af7ba16abfdd6f94
  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/QZHN82402029
  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 0xd081fb516bdbaf5355d3182828f3eadced4068996fb52833af7ba16abfdd6f94. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN82402029.
    date published: 2026-07-31T12:24:41Z
  audio: Recuerdos de la Alhambra
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.222
    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: 0.25
    additional property: Energy
      type: PropertyValue
      value: 0.199
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.932
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.948
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.338
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.492
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Studio de Campanelas su un Tema della "Folia" di M de Fossa
  type: MusicRecording
  duration: PT0M33S
  duration ms: 33658
  explicit: false
  by artist: Francisco Tárrega
  by artist: Christopher Mrofchak
  in album: Christopher Mrofchak performs the music of Francisco Tárrega
    type: MusicAlbum
    date published: 2024-08-02
  genre: spanish-classical
  genre: late-romantic-era
  isrc code: QZNWS2404037
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T04:26:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcb82b3d7eda533a39da77086d8408b0932a40d0e3bc9d830a0decfba1b891ee4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960348
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960348
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2404037
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T05:17:02Z
  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 0xcb82b3d7eda533a39da77086d8408b0932a40d0e3bc9d830a0decfba1b891ee4. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZNWS2404037.
    date published: 2026-07-31T05:17:02Z
  audio: Studio de Campanelas su un Tema della "Folia" di M de Fossa
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.628
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.324
    additional property: Energy
      type: PropertyValue
      value: 0.171
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.972
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.967
    additional property: Liveness
      type: PropertyValue
      value: 0.112
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Prélude no. 22
track: Prélude no. 19
track: Étude no. 4
track: Prélude no. 17
track: Lágrima

Valence (Positivity)
type: PropertyValue
value: 0.497

Loudness (dB)
type: PropertyValue
value: -27.51

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Minor

Prélude no. 22
type: MusicRecording
duration: PT1M1S
duration ms: 61895
explicit: false
by artist: Francisco Tárrega
by artist: Christopher Mrofchak
in album: Christopher Mrofchak performs the music of Francisco Tárrega
  type: MusicAlbum
  date published: 2024-08-02
genre: spanish-classical
genre: late-romantic-era
isrc code: QZNWS2404038
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:59:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8eb75eb4cc39ed9781563a58af3805a139cb2c37339c26dc657708cb000bce0d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2404038
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x8eb75eb4cc39ed9781563a58af3805a139cb2c37339c26dc657708cb000bce0d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNWS2404038.
  date published: 2026-07-08T03:22:41Z
audio: Prélude no. 22
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.151
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.672
  additional property: Energy
    type: PropertyValue
    value: 0.071
  additional property: Speechiness
    type: PropertyValue
    value: 0.252
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.925
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.523
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.526
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prélude no. 19
type: MusicRecording
duration: PT0M47S
duration ms: 47172
explicit: false
by artist: Francisco Tárrega
by artist: Christopher Mrofchak
in album: Christopher Mrofchak performs the music of Francisco Tárrega
  type: MusicAlbum
  date published: 2024-08-02
genre: spanish-classical
genre: late-romantic-era
isrc code: QZNWS2404041
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:08:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a80917c394c794436622258620e6ffb8bc8177007105225934e8d9bbe107e80
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/QZNWS2404041
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 0x0a80917c394c794436622258620e6ffb8bc8177007105225934e8d9bbe107e80. 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/QZNWS2404041.
  date published: 2026-07-08T03:20:19Z
audio: Prélude no. 19
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.771
  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: 0.698
  additional property: Energy
    type: PropertyValue
    value: 0.031
  additional property: Speechiness
    type: PropertyValue
    value: 0.259
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.912
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.668
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.926
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Étude no. 4
type: MusicRecording
duration: PT0M59S
duration ms: 59267
explicit: false
by artist: Francisco Tárrega
by artist: Christopher Mrofchak
in album: Christopher Mrofchak performs the music of Francisco Tárrega
  type: MusicAlbum
  date published: 2024-08-02
genre: spanish-classical
genre: late-romantic-era
isrc code: QZNWS2404044
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:41:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd76473fcf7c91194cf2631530ffce6e170e0dd18a1ea9c336d0396619390da49
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2404044
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
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 0xd76473fcf7c91194cf2631530ffce6e170e0dd18a1ea9c336d0396619390da49. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZNWS2404044.
  date published: 2026-07-31T08:26:41Z
audio: Étude no. 4
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.415
  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: 0.328
  additional property: Energy
    type: PropertyValue
    value: 0.095
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.958
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.955
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.329
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.732
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Prélude no. 17
type: MusicRecording
duration: PT0M34S
duration ms: 34993
explicit: false
by artist: Francisco Tárrega
by artist: Christopher Mrofchak
in album: Christopher Mrofchak performs the music of Francisco Tárrega
  type: MusicAlbum
  date published: 2024-08-02
genre: spanish-classical
genre: late-romantic-era
isrc code: QZNWS2404046
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T16:41:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6f313ab214c53461c223e715f9f69ead90632bc7d52d0f1221750fd0b2e3f874
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2404046
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0x6f313ab214c53461c223e715f9f69ead90632bc7d52d0f1221750fd0b2e3f874. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZNWS2404046.
  date published: 2026-07-31T17:29:52Z
audio: Prélude no. 17
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.007
  additional property: Musical Key
    type: PropertyValue
    value: 9
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Lágrima
type: MusicRecording
duration: PT1M38S
duration ms: 98056
explicit: false
by artist: Francisco Tárrega
by artist: Christopher Mrofchak
in album: Christopher Mrofchak performs the music of Francisco Tárrega
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  date published: 2024-08-02
genre: spanish-classical
genre: late-romantic-era
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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: 2026-07-31T02:19:15Z
audio: Lágrima
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