Flexx LS7
type: MusicGroup
popularity: 4
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x652c59563aa5ef8c2cebea6a54a5ab56316dc56901107d435740a481edb06192
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8925cc02-06ed-473c-8f9e-106029e11643.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8925cc02-06ed-473c-8f9e-106029e11643.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8925cc02-06ed-473c-8f9e-106029e11643
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x652c59563aa5ef8c2cebea6a54a5ab56316dc56901107d435740a481edb06192","name":"Flexx LS7","registered_at":"2026-06-17T13:16:38Z","symbol":"NIM1406990","token_address":"0x70ff3bcdf52823c52a5a1ecb2a77a382eea75523","type":"artist","uuid":"8925cc02-06ed-473c-8f9e-106029e11643"}
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 0x652c59563aa5ef8c2cebea6a54a5ab56316dc56901107d435740a481edb06192. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8925cc02-06ed-473c-8f9e-106029e11643.json and https://artists.proofprofile.net/proofs/artist/8925cc02-06ed-473c-8f9e-106029e11643.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x652c59563aa5ef8c2cebea6a54a5ab56316dc56901107d435740a481edb06192","name":"Flexx LS7","registered_at":"2026-06-17T13:16:38Z","symbol":"NIM1406990","token_address":"0x70ff3bcdf52823c52a5a1ecb2a77a382eea75523","type":"artist","uuid":"8925cc02-06ed-473c-8f9e-106029e11643"}
album: Ilusión
  type: MusicAlbum
  date published: 2023-05-19
album: Kuduro
  type: MusicAlbum
  date published: 2023-06-23
album: Calm Down
  type: MusicAlbum
  date published: 2023-07-05
  track: Calm Down
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238915
    explicit: true
    by artist: Flexx LS7
    in album: Calm Down
      type: MusicAlbum
      date published: 2023-07-05
    isrc code: QZNWW2335836
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T08:54:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfc54e88ae2c046ed7e27879b93c7fcee769afbba1ed6cc9c0eaa1cd42e8e7769
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      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/QZNWW2335836
    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 0xfc54e88ae2c046ed7e27879b93c7fcee769afbba1ed6cc9c0eaa1cd42e8e7769. 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/QZNWW2335836.
      date published: 2026-07-18T12:14:37Z
    audio: Calm Down
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.184
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.589
      additional property: Energy
        type: PropertyValue
        value: 0.476
      additional property: Speechiness
        type: PropertyValue
        value: 0.382
      additional property: Acousticness
        type: PropertyValue
        value: 0.602
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.095
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.446
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.94
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Tina
  type: MusicAlbum
  date published: 2023-08-09
album: Isla
  type: MusicAlbum
  date published: 2023-08-27
album: 20
  type: MusicAlbum
  date published: 2023-10-05
album: Mamichula
  type: MusicAlbum
  date published: 2023-11-26
album: Luna
  type: MusicAlbum
  date published: 2025-05-17
album: Trepes
  type: MusicAlbum
  date published: 2025-07-26