Lapostroz
type: MusicGroup
popularity: 13
followers: 4485
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7fc7ea4d96c1b1f3a916817a5c0b15d47086bee726b1bf85071027bd2bea83a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cfb97e24-ffc2-4021-94ff-04427c8a67bc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cfb97e24-ffc2-4021-94ff-04427c8a67bc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cfb97e24-ffc2-4021-94ff-04427c8a67bc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc7ea4d96c1b1f3a916817a5c0b15d47086bee726b1bf85071027bd2bea83a9. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfb97e24-ffc2-4021-94ff-04427c8a67bc.json and https://artists.proofprofile.net/proofs/artist/cfb97e24-ffc2-4021-94ff-04427c8a67bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:52:51Z
album: Nuits Blanches
  type: MusicAlbum
  date published: 2018-09-28
album: Nuits blanches
  type: MusicAlbum
  date published: 2019-02-12
album: Tâche Noire.
  type: MusicAlbum
  date published: 2019-02-13
album: Utopia
  type: MusicAlbum
  date published: 2019-03-06
album: Demons
  type: MusicAlbum
  date published: 2019-04-30
album: Devenir Roi
  type: MusicAlbum
  date published: 2019-09-13
album: Comme un Fou
  type: MusicAlbum
  date published: 2019-09-20
album: pour me laisser aller
  type: MusicAlbum
  date published: 2020-01-30
  track: pour me laisser aller
    type: MusicRecording
    duration: PT2M10S
    duration ms: 130172
    explicit: false
    by artist: Lapostroz
    in album: pour me laisser aller
      type: MusicAlbum
      date published: 2020-01-30
    isrc code: TCAEP2069620
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T15:54:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0df72dcb5f9b6084d698dfe8e5fff09e8c05620c3d414402cf164fd188dd59c9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958756
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958756
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEP2069620
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T16:12:29Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df72dcb5f9b6084d698dfe8e5fff09e8c05620c3d414402cf164fd188dd59c9. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/TCAEP2069620.
      date published: 2026-07-19T16:12:29Z
    audio: pour me laisser aller
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.015
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.822
      additional property: Energy
        type: PropertyValue
        value: 0.355
      additional property: Speechiness
        type: PropertyValue
        value: 0.086
      additional property: Acousticness
        type: PropertyValue
        value: 0.866
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.085
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.527
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.897
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: pour me laisser aller (acoustic)
  type: MusicAlbum
  date published: 2020-01-31
album: Panthère
  type: MusicAlbum
  date published: 2021-06-04
album: BLEU
  type: MusicAlbum
  date published: 2023-03-10
track: Regarde-moi
  type: MusicRecording
  duration: PT2M20S
  duration ms: 140000
  explicit: false
  by artist: RapClub
  by artist: Lapostroz
  in album: La lune ne suffit pas
    type: MusicAlbum
    date published: 2024-02-28
  isrc code: QZES72464172
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T19:06:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe82e69047de72bb9d45a0d6c65f2bb052682885cd46389b20ac02510a134f816
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960455
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960455
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72464172
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T19:53:13Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82e69047de72bb9d45a0d6c65f2bb052682885cd46389b20ac02510a134f816. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZES72464172.
    date published: 2026-07-31T19:53:13Z
  audio: Regarde-moi
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.715
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
    additional property: Time Signature
    additional property: Danceability
    additional property: Energy
    additional property: Speechiness
    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

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.622

Energy
type: PropertyValue
value: 0.517

Speechiness
type: PropertyValue
value: 0.303

Acousticness
type: PropertyValue
value: 0.103

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.323

Valence (Positivity)
type: PropertyValue
value: 0.522

Loudness (dB)
type: PropertyValue
value: -13.674

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Minor