Gunnar Hahns Orkester
type: MusicGroup
genre: swedish ballads
popularity: 7
followers: 738
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd35ffb8bba1b952cb53d7cca5b503d78adc23a299a5127740b32de6bfd11808d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbf10e03-420e-4b67-80bd-d8daf1f35365.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbf10e03-420e-4b67-80bd-d8daf1f35365.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cbf10e03-420e-4b67-80bd-d8daf1f35365
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd35ffb8bba1b952cb53d7cca5b503d78adc23a299a5127740b32de6bfd11808d","name":"Gunnar Hahns Orkester","registered_at":"2026-06-20T23:21:17Z","symbol":"NIM1747339","token_address":"0xb4007a776330f73de7c1216be318a19065ce70f2","type":"artist","uuid":"cbf10e03-420e-4b67-80bd-d8daf1f35365"}
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 0xd35ffb8bba1b952cb53d7cca5b503d78adc23a299a5127740b32de6bfd11808d. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbf10e03-420e-4b67-80bd-d8daf1f35365.json and https://artists.proofprofile.net/proofs/artist/cbf10e03-420e-4b67-80bd-d8daf1f35365.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0xd35ffb8bba1b952cb53d7cca5b503d78adc23a299a5127740b32de6bfd11808d","name":"Gunnar Hahns Orkester","registered_at":"2026-06-20T23:21:17Z","symbol":"NIM1747339","token_address":"0xb4007a776330f73de7c1216be318a19065ce70f2","type":"artist","uuid":"cbf10e03-420e-4b67-80bd-d8daf1f35365"}
album: Mors lilla Olle - Guldkorn
  type: MusicAlbum
  date published: 1956
  track: Hönsgården
    type: MusicRecording
    duration: PT1M16S
    duration ms: 76066
    explicit: false
    by artist: Gunnar Hahns Orkester
    in album: Mors lilla Olle - Guldkorn
      type: MusicAlbum
      date published: 1956
    genre: swedish ballads
    isrc code: SEPQD5620130
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T22:03:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa3895ad83e3b995616d97e0110097eda92f4c0bd83aa7af73ae994dfaa3487ee
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEPQD5620130
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0xa3895ad83e3b995616d97e0110097eda92f4c0bd83aa7af73ae994dfaa3487ee. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEPQD5620130.
      date published: 2026-07-04T11:19:20Z
    audio: Hönsgården
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.433
      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: 0.823
      additional property: Energy
        type: PropertyValue
        value: 0.331
      additional property: Speechiness
        type: PropertyValue
        value: 0.157
      additional property: Acousticness
        type: PropertyValue
        value: 0.864
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.005
      additional property: Liveness
        type: PropertyValue
        value: 0.087
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.837
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.623
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Mors lilla Olle
  type: MusicAlbum
  date published: 1967
album: Sommarvisor och folkliga melodier
  type: MusicAlbum
  date published: 2024-05-03