Julie Masse
type: MusicGroup
genre: chanson
description: Julie Masse (born June 3, 1970) is a Canadian pop singer. Biography Masse was born in Greenfield Park, Quebec. She released her self-titled debut album in 1990, a French language album that made her
popularity: 33
followers: 14391
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0d59a1a6ea0cf3ea9f13e1f2e08b1679de01c45635de2713a9211e2eecbe5cb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953408
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c80ee3a6-0269-407a-9e30-858c869fb086.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c80ee3a6-0269-407a-9e30-858c869fb086.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c80ee3a6-0269-407a-9e30-858c869fb086
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd0d59a1a6ea0cf3ea9f13e1f2e08b1679de01c45635de2713a9211e2eecbe5cb","name":"Julie Masse","registered_at":"2026-06-12T09:36:39Z","symbol":"NIM0258105","token_address":"0x0201d5715b264028540c508513fce17b6c27ab9e","type":"artist","uuid":"c80ee3a6-0269-407a-9e30-858c869fb086"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d59a1a6ea0cf3ea9f13e1f2e08b1679de01c45635de2713a9211e2eecbe5cb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c80ee3a6-0269-407a-9e30-858c869fb086.json and https://artists.proofprofile.net/proofs/artist/c80ee3a6-0269-407a-9e30-858c869fb086.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xd0d59a1a6ea0cf3ea9f13e1f2e08b1679de01c45635de2713a9211e2eecbe5cb","name":"Julie Masse","registered_at":"2026-06-12T09:36:39Z","symbol":"NIM0258105","token_address":"0x0201d5715b264028540c508513fce17b6c27ab9e","type":"artist","uuid":"c80ee3a6-0269-407a-9e30-858c869fb086"}
album: Julie Masse
  type: MusicAlbum
  date published: 1990
album: Julie Masse
  type: MusicAlbum
  date published: 1990-01-01
  track: Si nos regards
    type: MusicRecording
    duration: PT3M9S
    duration ms: 189626
    explicit: false
    by artist: Julie Masse
    in album: Julie Masse
      type: MusicAlbum
      date published: 1990-01-01
    genre: chanson
    isrc code: CAV509071002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T19:14:49+00:00
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      type: PropertyValue
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959052
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAV509071002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T19:50:27Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed200c2ba0133e0476e7f4c015b669fd663e42c46a7c78630404025f1c2017a. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/CAV509071002.
      date published: 2026-07-21T19:50:27Z
    audio: Si nos regards
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.359
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.699
      additional property: Energy
        type: PropertyValue
        value: 0.697
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.045
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.337
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.711
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.843
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: À Contre-Jour
  type: MusicAlbum
  date published: 1992
album: À contre-jour
  type: MusicAlbum
  date published: 1992-01-01
  track: À contre-jour
    type: MusicRecording
    duration: PT4M19S
    duration ms: 259506
    explicit: false
    by artist: Julie Masse
    in album: À contre-jour
      type: MusicAlbum
      date published: 1992-01-01
    genre: chanson
    isrc code: CAV509271202
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T10:49:35+00:00
    additional property: CopyrightChainExplorerURL
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      value: https://explorer.copyrightchains.com/tx/0x3483a856815b78854d2c8576e41bdc33964e6e706c9ebf8765f9d31e471ee7ee
    additional property: OTSHash
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    additional property: OTSBitcoinBlockVerifyURL
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      value: https://blockstream.info/api/block-height/958152
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAV509271202
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T13:52:00Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3483a856815b78854d2c8576e41bdc33964e6e706c9ebf8765f9d31e471ee7ee. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:52:00Z), 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/CAV509271202.
      date published: 2026-07-15T13:52:00Z
    audio: À contre-jour
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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      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: 0.626
      additional property: Energy
        type: PropertyValue
        value: 0.464
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: À quoi rêvent les millionnaires
album: Circle of One
album: Julie Masse : Compilation

Acousticness
type: PropertyValue
value: 0.458

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.305

Valence (Positivity)
type: PropertyValue
value: 0.345

Loudness (dB)
type: PropertyValue
value: -9.463

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

À quoi rêvent les millionnaires
type: MusicRecording
duration: PT3M57S
duration ms: 237773
explicit: false
by artist: Julie Masse
in album: À contre-jour
  type: MusicAlbum
  date published: 1992-01-01
genre: chanson
isrc code: CAV509271209
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-11T21:10:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x261b9be5e257544b697220870d205d22ae2702ddfa831ceab87ea514a6d5b88c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957611
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957611
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAV509271209
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-11T21:33:50Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261b9be5e257544b697220870d205d22ae2702ddfa831ceab87ea514a6d5b88c. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/CAV509271209.
  date published: 2026-07-11T21:33:50Z
audio: À quoi rêvent les millionnaires
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.481
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.683
  additional property: Energy
    type: PropertyValue
    value: 0.637
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.043
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.071
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.748
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.632
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Circle of One
type: MusicAlbum
date published: 1994-01-01
track: One More Moment
  type: MusicRecording
  duration: PT4M57S
  duration ms: 297066
  explicit: false
  by artist: Julie Masse
  in album: Circle of One
    type: MusicAlbum
    date published: 1994-01-01
  genre: chanson
  isrc code: CAV509471404
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T17:32:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x209ce1cc15867079428336d74e540a1ad98d8fbc99411e100b8090730f990b99
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958594
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958594
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAV509471404
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T18:05:01Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209ce1cc15867079428336d74e540a1ad98d8fbc99411e100b8090730f990b99. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CAV509471404.
    date published: 2026-07-18T18:05:01Z
  audio: One More Moment
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 83.052
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.473
    additional property: Energy
      type: PropertyValue
      value: 0.478
    additional property: Speechiness
      type: PropertyValue
      value: 0.025
    additional property: Acousticness
      type: PropertyValue
      value: 0.609
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.366
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.218
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.919
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Julie Masse : Compilation
type: MusicAlbum
date published: 1996-01-01
track: C'est zéro
  type: MusicRecording
  duration: PT4M2S
  duration ms: 242666
  explicit: false
  by artist: Julie Masse
  in album: Julie Masse : Compilation
    type: MusicAlbum
    date published: 1996-01-01
  genre: chanson
  isrc code: CAV509071001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T10:46:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x513837ae5e8231944a1eff5d1a7b52360f9baa9a15314309cd9261ebe8f1ef90
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959002
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959002
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAV509071001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T13:50:03Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513837ae5e8231944a1eff5d1a7b52360f9baa9a15314309cd9261ebe8f1ef90. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:50:03Z), 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/CAV509071001.
    date published: 2026-07-21T13:50:03Z
  audio: C'est zéro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 114.491
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.601
    additional property: Energy
      type: PropertyValue
      value: 0.646
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.554
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.918
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.373
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.167
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Prends bien garde
  type: MusicRecording
  duration: PT4M10S
  duration ms: 250333
  explicit: false
  by artist: Julie Masse
  in album: Julie Masse : Compilation
    type: MusicAlbum
    date published: 1996-01-01
  genre: chanson
  isrc code: CAV509071004
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T21:42:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2d45712950e6557f75261a75217b360531ef15a676d4d256c0c7214215086e66
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958935
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958935
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAV509071004
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T22:08:19Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d45712950e6557f75261a75217b360531ef15a676d4d256c0c7214215086e66. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CAV509071004.
    date published: 2026-07-20T22:08:19Z
  audio: Prends bien garde
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 115.47
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.729
    additional property: Energy
      type: PropertyValue
      value: 0.717
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.283
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.16
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.867
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.997
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Les idées noires
  type: MusicRecording
  duration: PT4M13S
  duration ms: 253666
  explicit: false
  by artist: Julie Masse
  in album: Julie Masse : Compilation
    type: MusicAlbum
    date published: 1996-01-01
  genre: chanson
  isrc code: CAV509271201
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T14:46:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe2f2a8c5bc91b4512b6f8b821141454279ef736278f72878b7ec4f5bfb1a0599
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958746
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958746
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Les idées noires

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAV509271201

OTSTimestamp
type: PropertyValue
value: 2026-07-19T17:50:12Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f2a8c5bc91b4512b6f8b821141454279ef736278f72878b7ec4f5bfb1a0599. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:50:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAV509271201.
date published: 2026-07-19T17:50:12Z

Les idées noires
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 168.015
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.358
additional property: Energy
  type: PropertyValue
  value: 0.597
additional property: Speechiness
  type: PropertyValue
  value: 0.031
additional property: Acousticness
  type: PropertyValue
  value: 0.093
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.076
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.238
additional property: Loudness (dB)
  type: PropertyValue
  value: -8.046
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Major