Lunds Kammarkör
type: MusicGroup
genre: choral
genre: swedish ballads
popularity: 5
followers: 287
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x63216acd2ab27c14024444fc9c2c0bf102817d84d20768cf24d1b9e63a53cfd3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff983ed6-49f2-4ae5-aeb0-186d3c5f5cd0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff983ed6-49f2-4ae5-aeb0-186d3c5f5cd0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ff983ed6-49f2-4ae5-aeb0-186d3c5f5cd0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x63216acd2ab27c14024444fc9c2c0bf102817d84d20768cf24d1b9e63a53cfd3","name":"Lunds Kammarkör","registered_at":"2026-06-21T18:37:58Z","symbol":"NIM2001778","token_address":"0x77f21b16a9084e847308deca18c78e5f63ce0e91","type":"artist","uuid":"ff983ed6-49f2-4ae5-aeb0-186d3c5f5cd0"}
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 0x63216acd2ab27c14024444fc9c2c0bf102817d84d20768cf24d1b9e63a53cfd3. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff983ed6-49f2-4ae5-aeb0-186d3c5f5cd0.json and https://artists.proofprofile.net/proofs/artist/ff983ed6-49f2-4ae5-aeb0-186d3c5f5cd0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x63216acd2ab27c14024444fc9c2c0bf102817d84d20768cf24d1b9e63a53cfd3","name":"Lunds Kammarkör","registered_at":"2026-06-21T18:37:58Z","symbol":"NIM2001778","token_address":"0x77f21b16a9084e847308deca18c78e5f63ce0e91","type":"artist","uuid":"ff983ed6-49f2-4ae5-aeb0-186d3c5f5cd0"}
album: La Luna Asoma
  type: MusicAlbum
  date published: 2002-05-01
album: La Luna Asoma
  type: MusicAlbum
  date published: 2002-05-01
album: I Afrodites trädgård (In the Garden of Aphrodite)
  type: MusicAlbum
  date published: 2008-05-10
album: I Afrodites Trädgård (In the Garden of Aphrodite)
  type: MusicAlbum
  date published: 2008-05-10
  track: Kung Liljekonvalje
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238040
    explicit: false
    by artist: Lunds Kammarkör
    in album: I Afrodites Trädgård (In the Garden of Aphrodite)
      type: MusicAlbum
      date published: 2008-05-10
    genre: choral
    genre: swedish ballads
    isrc code: SEYMC0800109
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T06:10:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5db99ab7a4c9596b20749ee8e28d849bb053d83fc777c62c77a853c6682cde5d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958838
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958838
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYMC0800109
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T07:01:21Z
    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 0x5db99ab7a4c9596b20749ee8e28d849bb053d83fc777c62c77a853c6682cde5d. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/SEYMC0800109.
      date published: 2026-07-20T07:01:21Z
    audio: Kung Liljekonvalje
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.033
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.192
      additional property: Energy
        type: PropertyValue
        value: 0.07
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.99
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.518
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.037
      additional property: Loudness (dB)
        type: PropertyValue
        value: -25.147
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor