Keurspi
type: MusicGroup
popularity: 4
followers: 307
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a7156e3fc730903f9b661f26f2f1e68cbc5cf0d257e9fe572d50c3e50a8138d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3c495a6-9bcf-4e3a-8372-8339eef5c080.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3c495a6-9bcf-4e3a-8372-8339eef5c080.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e3c495a6-9bcf-4e3a-8372-8339eef5c080
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
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 0x3a7156e3fc730903f9b661f26f2f1e68cbc5cf0d257e9fe572d50c3e50a8138d. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3c495a6-9bcf-4e3a-8372-8339eef5c080.json and https://artists.proofprofile.net/proofs/artist/e3c495a6-9bcf-4e3a-8372-8339eef5c080.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: L'alchimiste
  type: MusicAlbum
  date published: 2011-11-25
album: Le Lab'oratoire (Mixed by DJ Nedu)
  type: MusicAlbum
  date published: 2012-12-16
album: Entrée en matière
  type: MusicAlbum
  date published: 2015-11-20
album: Entrée en matière
  type: MusicAlbum
  date published: 2015-11-20
album: L'alchimiste (Vocal Remix)
  type: MusicAlbum
  date published: 2017-05-21
album: Chœurspi
  type: MusicAlbum
  date published: 2017-06-02
album: Alors on s'accroche
  type: MusicAlbum
  date published: 2019-04-19
album: Juste Un Aurevoir
  type: MusicAlbum
  date published: 2019-04-26
album: Au-delà de nos souffrances
  type: MusicAlbum
  date published: 2019-05-31
album: Nouvelle Année
  type: MusicAlbum
  date published: 2023-02-24
album: Sans Pression
  type: MusicAlbum
  date published: 2023-03-24
album: Mers de Sable
  type: MusicAlbum
  date published: 2023-04-14
album: Whisky Bretzel
  type: MusicAlbum
  date published: 2023-05-19
album: Sauvage
  type: MusicAlbum
  date published: 2023-06-23
album: Brume
  type: MusicAlbum
  date published: 2023-09-15
album: Ring The Alarm
  type: MusicAlbum
  date published: 2023-11-14
album: On se quitte
  type: MusicAlbum
  date published: 2024-02-23
album: Ad Vitam Aeternam
  type: MusicAlbum
  date published: 2024-03-22
  track: Ad Vitam Aeternam
    type: MusicRecording
    duration: PT2M22S
    duration ms: 142000
    explicit: true
    by artist: Keurspi
    in album: Ad Vitam Aeternam
      type: MusicAlbum
      date published: 2024-03-22
    isrc code: TCAIA2460379
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T03:12:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0e8df40d1ef3b1173476fda1e9fde94c8771b7f16bb7fcc069e563431c1a99e8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIA2460379
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x0e8df40d1ef3b1173476fda1e9fde94c8771b7f16bb7fcc069e563431c1a99e8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAIA2460379.
      date published: 2026-07-05T10:01:46Z
    audio: Ad Vitam Aeternam
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.931
      additional property: Musical Key
        type: PropertyValue
        value: 10
      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: 0.741
      additional property: Speechiness
        type: PropertyValue
        value: 0.446
      additional property: Acousticness
        type: PropertyValue
        value: 0.018
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.187
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.421
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.684
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: KICKEUR
  type: MusicAlbum
  date published: 2024-11-25
album: LIVE AU PULP
  type: MusicAlbum
  date published: 2025-10-03