Heure de Musique de Chat
type: MusicGroup
popularity: 20
followers: 120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf042e586486d1e947af2436495611f278500edd0904fa35118a34d435d28526
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953714
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953714
additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/81161be4-a38a-4c94-b16e-75109d093547
additional property: OTSTimestamp
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  value: 2026-06-15T00:43:59Z
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
subject of: OpenTimestamps Proof of Existence
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  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf042e586486d1e947af2436495611f278500edd0904fa35118a34d435d28526. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81161be4-a38a-4c94-b16e-75109d093547.json and https://artists.proofprofile.net/proofs/artist/81161be4-a38a-4c94-b16e-75109d093547.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T00:43:59Z
  text: {"copyright_id":"0xcf042e586486d1e947af2436495611f278500edd0904fa35118a34d435d28526","name":"Heure de Musique de Chat","registered_at":"2026-06-14T18:05:11Z","symbol":"NIM0533336","token_address":"0x558d5ca42c7dec41cd0e41d4e730e56003bec2c8","type":"artist","uuid":"81161be4-a38a-4c94-b16e-75109d093547"}
album: 1 Heure de Musique Relaxante et Apaisante pour Chat
  type: MusicAlbum
  date published: 2021-02-08
  track: Piano calme pour dormir
    type: MusicRecording
    duration: PT2M3S
    duration ms: 123360
    explicit: false
    by artist: Heure de Musique de Chat
    in album: 1 Heure de Musique Relaxante et Apaisante pour Chat
      type: MusicAlbum
      date published: 2021-02-08
    isrc code: QZFML2145632
    additional property: CopyrightID
    additional property: CopyrightStatus
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2145632
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T12:27:01Z
    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 0x248ea51aed68962ea7c8d94e1411d05840091919642c1bf6aff789bc7d0dff91. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:27:01Z), 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/QZFML2145632.
      date published: 2026-07-15T12:27:01Z
    audio: Piano calme pour dormir
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.356
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.322
      additional property: Energy
        type: PropertyValue
        value: 0.193
      additional property: Speechiness
        type: PropertyValue
        value: 0.066
      additional property: Acousticness
        type: PropertyValue
        value: 0.833
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.377
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.285
      additional property: Loudness (dB)
        type: PropertyValue
        value: -25.652
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Chansons Relaxantes pour la Thérapie du Sommeil du Chat
  type: MusicAlbum
  date published: 2021-02-11
album: 1 Heure de Musicothérapie Apaisante pour Chats
  type: MusicAlbum
  date published: 2021-02-15
album: 2 Heures de Musique Relaxante pour Chats
  type: MusicAlbum
  date published: 2021-02-18
  track: Piano calme pour dormir
    type: MusicRecording
    duration: PT2M3S
    duration ms: 123360
    explicit: false
    by artist: Heure de Musique de Chat
    in album: 2 Heures de Musique Relaxante pour Chats
      type: MusicAlbum
      date published: 2021-02-18
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    additional property: OTSBitcoinBlockVerifyURL
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFML2145632
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:45:25Z
    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 0x248ea51aed68962ea7c8d94e1411d05840091919642c1bf6aff789bc7d0dff91. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZFML2145632.
      date published: 2026-07-20T09:45:25Z
    audio: Piano calme pour dormir
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.356
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.322
      additional property: Energy
        type: PropertyValue
        value: 0.193
      additional property: Speechiness
        type: PropertyValue
        value: 0.066
      additional property: Acousticness
        type: PropertyValue
        value: 0.833
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Musique Apaisante pour le Sommeil des Chats Pendant leur Absence
album: Musique Relaxante au Piano pour Chats Endormis
album: 2 Heures de Musique Endormie pour Chats
album: Chill Cats
album: Gute Nacht für Katzen

Liveness
type: PropertyValue
value: 0.377

Valence (Positivity)
type: PropertyValue
value: 0.285

Loudness (dB)
type: PropertyValue
value: -25.652

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Minor

Musique Apaisante pour le Sommeil des Chats Pendant leur Absence
type: MusicAlbum
date published: 2021-02-22

Musique Relaxante au Piano pour Chats Endormis
type: MusicAlbum
date published: 2021-02-25

2 Heures de Musique Endormie pour Chats
type: MusicAlbum
date published: 2021-03-01

Chill Cats
type: MusicAlbum
date published: 2021-06-12

Gute Nacht für Katzen
type: MusicAlbum
date published: 2024-07-26