Violaine Cochard
type: MusicGroup
popularity: 21
followers: 513
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc1c538612fc154f8962132eb4c4334de92e883565ec4d981fed23ad5e71d3a6f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b11328e-9163-46a4-ba10-2528dc0c4f02.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b11328e-9163-46a4-ba10-2528dc0c4f02.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b11328e-9163-46a4-ba10-2528dc0c4f02
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc1c538612fc154f8962132eb4c4334de92e883565ec4d981fed23ad5e71d3a6f","name":"Violaine Cochard","registered_at":"2026-06-12T02:30:57Z","symbol":"NIM0160642","token_address":"0x03c430fc50cb8195f05692ccd11a252c59541f53","type":"artist","uuid":"7b11328e-9163-46a4-ba10-2528dc0c4f02"}
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 0xc1c538612fc154f8962132eb4c4334de92e883565ec4d981fed23ad5e71d3a6f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b11328e-9163-46a4-ba10-2528dc0c4f02.json and https://artists.proofprofile.net/proofs/artist/7b11328e-9163-46a4-ba10-2528dc0c4f02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0xc1c538612fc154f8962132eb4c4334de92e883565ec4d981fed23ad5e71d3a6f","name":"Violaine Cochard","registered_at":"2026-06-12T02:30:57Z","symbol":"NIM0160642","token_address":"0x03c430fc50cb8195f05692ccd11a252c59541f53","type":"artist","uuid":"7b11328e-9163-46a4-ba10-2528dc0c4f02"}
album: Couperin: Ordres pour Clavecin
  type: MusicAlbum
  date published: 2006-06-12
album: Couperin: Ordres pour Clavecin
  type: MusicAlbum
  date published: 2006-06-12
album: ToccaTram
  type: MusicAlbum
  date published: 2014-08-25
album: Bach: Plucked / Unplucked
  type: MusicAlbum
  date published: 2015-12-01
  track: St. Matthew Passion in E Minor, Pt. 2, BWV 244: 39. Erbarme dich - Transcription for Harpsichord and Piano
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250306
    explicit: false
    by artist: Violaine Cochard
    in album: Bach: Plucked / Unplucked
      type: MusicAlbum
      date published: 2015-12-01
    isrc code: FR50X1522908
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T05:37:59+00:00
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      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1e6f28714d8fbd87fe2d6c79f40ecb584fd9a38b1c59f5747ccdae563f52a559
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 958544
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958544
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1522908
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:14:37Z
    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 0x1e6f28714d8fbd87fe2d6c79f40ecb584fd9a38b1c59f5747ccdae563f52a559. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR50X1522908.
      date published: 2026-07-18T12:14:37Z
    audio: St. Matthew Passion in E Minor, Pt. 2, BWV 244: 39. Erbarme dich - Transcription for Harpsichord and Piano
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.84
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.358
      additional property: Energy
        type: PropertyValue
        value: 0.261
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.899
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.026
      additional property: Liveness
        type: PropertyValue
        value: 0.075
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.108
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.459
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Duphly
  type: MusicAlbum
  date published: 2018-09-28
track: La Didone: "Lamento di Didone"

La Didone: "Lamento di Didone"
type: MusicRecording
duration: PT5M24S
duration ms: 324973
explicit: false
by artist: Francesco Cavalli
by artist: Stéphanie D'Oustrac
by artist: Ensemble Amarillis
by artist: Héloïse Gaillard
by artist: Violaine Cochard
in album: Ferveur et extase
  type: MusicAlbum
  date published: 2011-10-27
genre: choral
isrc code: FRZDG1100683
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:25:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe3738743c5f785812de83a66049001e5d1a3f3dc5a49695bf8df2cfd3777bf59
additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/FRZDG1100683
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3738743c5f785812de83a66049001e5d1a3f3dc5a49695bf8df2cfd3777bf59. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZDG1100683.
  date published: 2026-07-08T03:53:27Z
audio: La Didone: "Lamento di Didone"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.688
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.389
  additional property: Energy
    type: PropertyValue
    value: 0.081
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.94
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.077
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.902
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor