Victor Leon
type: MusicGroup
popularity: 3
followers: 20
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x911285c9b90babd01018046a19e5a7a70f9e39418622653ff72664ecb473f649
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0520f74d-772c-49a3-a727-2e655ed67850.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0520f74d-772c-49a3-a727-2e655ed67850.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0520f74d-772c-49a3-a727-2e655ed67850
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x911285c9b90babd01018046a19e5a7a70f9e39418622653ff72664ecb473f649","name":"Victor Leon","registered_at":"2026-06-15T15:13:15Z","symbol":"NIM0747685","token_address":"0x7e0a64a7c8321b1a58d96a89733cdaf12bcd970a","type":"artist","uuid":"0520f74d-772c-49a3-a727-2e655ed67850"}
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 0x911285c9b90babd01018046a19e5a7a70f9e39418622653ff72664ecb473f649. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0520f74d-772c-49a3-a727-2e655ed67850.json and https://artists.proofprofile.net/proofs/artist/0520f74d-772c-49a3-a727-2e655ed67850.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x911285c9b90babd01018046a19e5a7a70f9e39418622653ff72664ecb473f649","name":"Victor Leon","registered_at":"2026-06-15T15:13:15Z","symbol":"NIM0747685","token_address":"0x7e0a64a7c8321b1a58d96a89733cdaf12bcd970a","type":"artist","uuid":"0520f74d-772c-49a3-a727-2e655ed67850"}
track: La veuve joyeuse - Heure exquise: Heure exquise
track: La veuve joyeuse - Air de Vilya: Air de Vilya

La veuve joyeuse - Heure exquise: Heure exquise
type: MusicRecording
duration: PT2M48S
duration ms: 168786
explicit: false
by artist: Victor Leon
by artist: Leon Stein
by artist: Julie Fuchs
by artist: Stanislas de Barbeyrac
by artist: Orchestre National de Lille
by artist: Samuel Jean
in album: Yes !
  type: MusicAlbum
  date published: 2015-09-11
isrc code: FRUM71501787
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T20:33:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5dab9c9c69d053ef3cc66b6f65563d3bb6757743c37be811cf7e5489def0a418
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM71501787
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+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 0x5dab9c9c69d053ef3cc66b6f65563d3bb6757743c37be811cf7e5489def0a418. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRUM71501787.
  date published: 2026-07-02T11:34:59Z
audio: La veuve joyeuse - Heure exquise: Heure exquise
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.502
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.236
  additional property: Energy
    type: PropertyValue
    value: 0.126
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.075
  additional property: Liveness
    type: PropertyValue
    value: 0.297
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.094
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.573
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

La veuve joyeuse - Air de Vilya: Air de Vilya
type: MusicRecording
duration: PT5M1S
duration ms: 301600
explicit: false
by artist: Victor Leon
by artist: Leon Stein
by artist: Julie Fuchs
by artist: Orchestre National de Lille
by artist: Samuel Jean
in album: Yes !
  type: MusicAlbum
  date published: 2015-09-11
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ee03e59b7230f8875034e45d0f85428dfe57d8ef82503fcfd108699fcccc69. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM71501786.
  date published: 2026-07-31T20:22:46Z
audio: La veuve joyeuse - Air de Vilya: Air de Vilya
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.173
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.243
  additional property: Energy
    type: PropertyValue
    value: 0.186
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.144
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.096
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.465
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRUM71501786
additional property: CopyrightID
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: 960459
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T20:22:46+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM71501786
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960459
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960459
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:22:46+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch