Hank Lennart & The Sentimental Cowboys
type: MusicGroup
popularity: 4
followers: 72
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdde8bc675145b45e01f28b3f205cc9b8d553ceab06a46444ad62ec73abfefed0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dcb052d6-d120-4661-a6be-0a23183102d4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dcb052d6-d120-4661-a6be-0a23183102d4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dcb052d6-d120-4661-a6be-0a23183102d4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdde8bc675145b45e01f28b3f205cc9b8d553ceab06a46444ad62ec73abfefed0","name":"Hank Lennart & The Sentimental Cowboys","registered_at":"2026-06-21T05:06:58Z","symbol":"NIM1828892","token_address":"0xb967243ad9d79902a6f5d8020fde24cc8599b609","type":"artist","uuid":"dcb052d6-d120-4661-a6be-0a23183102d4"}
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 0xdde8bc675145b45e01f28b3f205cc9b8d553ceab06a46444ad62ec73abfefed0. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dcb052d6-d120-4661-a6be-0a23183102d4.json and https://artists.proofprofile.net/proofs/artist/dcb052d6-d120-4661-a6be-0a23183102d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0xdde8bc675145b45e01f28b3f205cc9b8d553ceab06a46444ad62ec73abfefed0","name":"Hank Lennart & The Sentimental Cowboys","registered_at":"2026-06-21T05:06:58Z","symbol":"NIM1828892","token_address":"0xb967243ad9d79902a6f5d8020fde24cc8599b609","type":"artist","uuid":"dcb052d6-d120-4661-a6be-0a23183102d4"}
album: Mama - Don't Let Your Babies Grow up to Be Cowboys
  type: MusicAlbum
  date published: 2007
  track: Timrå tisdag
    type: MusicRecording
    duration: PT2M53S
    duration ms: 173240
    explicit: false
    by artist: Hank Lennart & The Sentimental Cowboys
    in album: Mama - Don't Let Your Babies Grow up to Be Cowboys
      type: MusicAlbum
      date published: 2007
    isrc code: SEVGT1702313
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T18:24:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc44f734a4e5ba227e2a285419020618b4d54b4814c3e08ca72714d9454bc0e80
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVGT1702313
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T04:47:21Z
    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 0xc44f734a4e5ba227e2a285419020618b4d54b4814c3e08ca72714d9454bc0e80. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/SEVGT1702313.
      date published: 2026-07-05T04:47:21Z
    audio: Timrå tisdag
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.239
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.594
      additional property: Energy
        type: PropertyValue
        value: 0.623
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.5
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.226
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.421
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.324
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major