Hugo Holke
type: MusicGroup
popularity: 7
followers: 272
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xafef25ae1555d4e51acf7d01f368894ee9a6b66e2dcabaded871583d025aa841
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5d6cde96-d280-4d2c-b1b9-ac88081408b6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5d6cde96-d280-4d2c-b1b9-ac88081408b6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5d6cde96-d280-4d2c-b1b9-ac88081408b6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xafef25ae1555d4e51acf7d01f368894ee9a6b66e2dcabaded871583d025aa841","name":"Hugo Holke","registered_at":"2026-06-16T22:13:18Z","symbol":"NIM1191611","token_address":"0x11f4fb51056ba74c803e35732b785934630fe2b5","type":"artist","uuid":"5d6cde96-d280-4d2c-b1b9-ac88081408b6"}
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 0xafef25ae1555d4e51acf7d01f368894ee9a6b66e2dcabaded871583d025aa841. 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/5d6cde96-d280-4d2c-b1b9-ac88081408b6.json and https://artists.proofprofile.net/proofs/artist/5d6cde96-d280-4d2c-b1b9-ac88081408b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xafef25ae1555d4e51acf7d01f368894ee9a6b66e2dcabaded871583d025aa841","name":"Hugo Holke","registered_at":"2026-06-16T22:13:18Z","symbol":"NIM1191611","token_address":"0x11f4fb51056ba74c803e35732b785934630fe2b5","type":"artist","uuid":"5d6cde96-d280-4d2c-b1b9-ac88081408b6"}
album: Oro
  type: MusicAlbum
  date published: 2022-03-11
album: Natten & dagen
  type: MusicAlbum
  date published: 2022-04-08
album: Ditt hem
  type: MusicAlbum
  date published: 2022-04-29
album: Tordyvel
  type: MusicAlbum
  date published: 2022-05-13
album: Bortom
  type: MusicAlbum
  date published: 2024-03-13
album: Ut & in
  type: MusicAlbum
  date published: 2024-04-17
album: Samtidigt blommade krusbären
  type: MusicAlbum
  date published: 2024-06-07
album: Lo
  type: MusicAlbum
  date published: 2024-10-18
album: Har du stannat upp
  type: MusicAlbum
  date published: 2024-11-15
album: Gouache
  type: MusicAlbum
  date published: 2025-02-21
  track: Gouache
    type: MusicRecording
    duration: PT2M27S
    duration ms: 147569
    explicit: false
    by artist: Hugo Holke
    in album: Gouache
      type: MusicAlbum
      date published: 2025-02-21
    isrc code: SE5XG2501377
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T19:55:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6631365b5e8407e0cbd5a3ab1dfac6b06351120ee0eac091a3bbfcb4083d7cc4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958455
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958455
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5XG2501377
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T21:28:36Z
    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 0x6631365b5e8407e0cbd5a3ab1dfac6b06351120ee0eac091a3bbfcb4083d7cc4. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SE5XG2501377.
      date published: 2026-07-17T21:28:36Z
    audio: Gouache
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.951
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.725
      additional property: Energy
        type: PropertyValue
        value: 0.369
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.81
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.049
      additional property: Liveness
        type: PropertyValue
        value: 0.263
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.619
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.07
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Gräsfläckar
  type: MusicAlbum
  date published: 2025-02-28