Hannover Harmonists
type: MusicGroup
popularity: 9
followers: 794
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83fa80c745948ae43bc4bb4bec20feee7945a7d5afb0c1477a4797bf5e872836
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c623ec9b-d66b-49d0-babb-eb4a16258a3c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c623ec9b-d66b-49d0-babb-eb4a16258a3c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c623ec9b-d66b-49d0-babb-eb4a16258a3c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x83fa80c745948ae43bc4bb4bec20feee7945a7d5afb0c1477a4797bf5e872836","name":"Hannover Harmonists","registered_at":"2026-06-20T21:28:06Z","symbol":"NIM1716312","token_address":"0xf8370e33dd7eb211caf8e4d68436a7d34650685b","type":"artist","uuid":"c623ec9b-d66b-49d0-babb-eb4a16258a3c"}
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 0x83fa80c745948ae43bc4bb4bec20feee7945a7d5afb0c1477a4797bf5e872836. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c623ec9b-d66b-49d0-babb-eb4a16258a3c.json and https://artists.proofprofile.net/proofs/artist/c623ec9b-d66b-49d0-babb-eb4a16258a3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x83fa80c745948ae43bc4bb4bec20feee7945a7d5afb0c1477a4797bf5e872836","name":"Hannover Harmonists","registered_at":"2026-06-20T21:28:06Z","symbol":"NIM1716312","token_address":"0xf8370e33dd7eb211caf8e4d68436a7d34650685b","type":"artist","uuid":"c623ec9b-d66b-49d0-babb-eb4a16258a3c"}
album: By The Way
  type: MusicAlbum
  date published: 1992
album: By The Way
  type: MusicAlbum
  date published: 1992-01-01
  track: For The Longest Time
    type: MusicRecording
    duration: PT3M7S
    duration ms: 187960
    explicit: false
    by artist: Hannover Harmonists
    in album: By The Way
      type: MusicAlbum
      date published: 1992-01-01
    isrc code: DEC299215516
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T21:38:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc721960fc40d49b43248543bf6aa0691e9aed23bdfb1c5aa3f211ba4cfafcf0e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC299215516
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xc721960fc40d49b43248543bf6aa0691e9aed23bdfb1c5aa3f211ba4cfafcf0e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEC299215516.
      date published: 2026-07-05T01:12:41Z
    audio: For The Longest Time
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.987
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.506
      additional property: Energy
        type: PropertyValue
        value: 0.266
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.977
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.499
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.493
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.34
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Streifzug
  type: MusicAlbum
  date published: 1998
album: Golden Slumbers
  type: MusicAlbum
  date published: 2003
album: Golden Slumbers
  type: MusicAlbum
  date published: 2003-07-07