Hugo Westerdahl
type: MusicGroup
genre: gnawa
popularity: 7
followers: 400
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9d7a41565aeee4aefe585681bf15d296f47a0cd8f8d6af8192d3227387492c3b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5283cf7d-30f4-4149-abe8-a8ef492df945.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5283cf7d-30f4-4149-abe8-a8ef492df945.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5283cf7d-30f4-4149-abe8-a8ef492df945
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9d7a41565aeee4aefe585681bf15d296f47a0cd8f8d6af8192d3227387492c3b","name":"Hugo Westerdahl","registered_at":"2026-06-16T18:17:13Z","symbol":"NIM1135274","token_address":"0x4939c1b61cca1787c851419bdcf0431210f6feb8","type":"artist","uuid":"5283cf7d-30f4-4149-abe8-a8ef492df945"}
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 0x9d7a41565aeee4aefe585681bf15d296f47a0cd8f8d6af8192d3227387492c3b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5283cf7d-30f4-4149-abe8-a8ef492df945.json and https://artists.proofprofile.net/proofs/artist/5283cf7d-30f4-4149-abe8-a8ef492df945.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x9d7a41565aeee4aefe585681bf15d296f47a0cd8f8d6af8192d3227387492c3b","name":"Hugo Westerdahl","registered_at":"2026-06-16T18:17:13Z","symbol":"NIM1135274","token_address":"0x4939c1b61cca1787c851419bdcf0431210f6feb8","type":"artist","uuid":"5283cf7d-30f4-4149-abe8-a8ef492df945"}
album: Western Sahara (Original Score)
  type: MusicAlbum
  date published: 2007
album: Western Sahara (Original Score)
  type: MusicAlbum
  date published: 2007-01-01
  track: Sahara on my Mind
    type: MusicRecording
    duration: PT4M27S
    duration ms: 267489
    explicit: false
    by artist: Hugo Westerdahl
    in album: Western Sahara (Original Score)
      type: MusicAlbum
      date published: 2007-01-01
    genre: gnawa
    isrc code: ESAAI0201167
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T23:18:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb337e0a088bf4f4e52c67cf2217a6dc29715918311e14a1122994d8af1bbbfc0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESAAI0201167
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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 0xb337e0a088bf4f4e52c67cf2217a6dc29715918311e14a1122994d8af1bbbfc0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ESAAI0201167.
      date published: 2026-07-19T07:14:39Z
    audio: Sahara on my Mind
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.25
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.577
      additional property: Energy
        type: PropertyValue
        value: 0.545
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.471
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.946
      additional property: Liveness
        type: PropertyValue
        value: 0.096
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.309
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.854
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Western Sahara
  type: MusicAlbum
  date published: 2007-01-01
album: Western Sahara (Original Score)
  type: MusicAlbum
  date published: 2007-01-01