Michael Brecker Quartet
type: MusicGroup
genre: jazz
genre: latin jazz
popularity: 8
followers: 10400
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x162ee2f0e96495e522c7b8dcb0517549681bdfd94b8b170aeae09fcfd50d78eb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953972
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953972
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b074bbf-a614-4ced-9eff-5ca027aa7802.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b074bbf-a614-4ced-9eff-5ca027aa7802.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2b074bbf-a614-4ced-9eff-5ca027aa7802
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:31:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x162ee2f0e96495e522c7b8dcb0517549681bdfd94b8b170aeae09fcfd50d78eb","name":"Michael Brecker Quartet","registered_at":"2026-06-16T04:31:23Z","symbol":"NIM0938183","token_address":"0xe01619de64490afba27f5056f765a572296fb9ac","type":"artist","uuid":"2b074bbf-a614-4ced-9eff-5ca027aa7802"}
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 0x162ee2f0e96495e522c7b8dcb0517549681bdfd94b8b170aeae09fcfd50d78eb. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b074bbf-a614-4ced-9eff-5ca027aa7802.json and https://artists.proofprofile.net/proofs/artist/2b074bbf-a614-4ced-9eff-5ca027aa7802.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x162ee2f0e96495e522c7b8dcb0517549681bdfd94b8b170aeae09fcfd50d78eb","name":"Michael Brecker Quartet","registered_at":"2026-06-16T04:31:23Z","symbol":"NIM0938183","token_address":"0xe01619de64490afba27f5056f765a572296fb9ac","type":"artist","uuid":"2b074bbf-a614-4ced-9eff-5ca027aa7802"}
album: Two Blocks From The Edge
  type: MusicAlbum
  date published: 1998-01-01
  track: Delta City Blues
    type: MusicRecording
    duration: PT5M36S
    duration ms: 336266
    explicit: false
    by artist: Michael Brecker Quartet
    in album: Two Blocks From The Edge
      type: MusicAlbum
      date published: 1998-01-01
    genre: jazz
    genre: latin jazz
    isrc code: USGR19800001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:24:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x22de25b172063ebbe6fb70f0451c5ce0b4a85370db470794a495ceb3b223edea
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USGR19800001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x22de25b172063ebbe6fb70f0451c5ce0b4a85370db470794a495ceb3b223edea. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USGR19800001.
      date published: 2026-07-05T18:48:28Z
    audio: Delta City Blues
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.237
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.579
      additional property: Energy
        type: PropertyValue
        value: 0.386
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.589
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.877
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.83
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.125
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Two Blocks From The Edge
  type: MusicAlbum
  date published: 1998-01-01