Q-Sign MellowSTREET
type: MusicGroup
popularity: 8
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6d67bd53a39dab1d04ab65d2387724642cce97551abc2fa47563530e1768cec2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04416e22-fb98-4183-bd94-e737df0e80d2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04416e22-fb98-4183-bd94-e737df0e80d2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/04416e22-fb98-4183-bd94-e737df0e80d2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6d67bd53a39dab1d04ab65d2387724642cce97551abc2fa47563530e1768cec2","name":"Q-Sign MellowSTREET","registered_at":"2026-06-15T15:13:13Z","symbol":"NIM0747677","token_address":"0x787c7089374c73b0e1ef8323878efc99191347eb","type":"artist","uuid":"04416e22-fb98-4183-bd94-e737df0e80d2"}
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 0x6d67bd53a39dab1d04ab65d2387724642cce97551abc2fa47563530e1768cec2. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04416e22-fb98-4183-bd94-e737df0e80d2.json and https://artists.proofprofile.net/proofs/artist/04416e22-fb98-4183-bd94-e737df0e80d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x6d67bd53a39dab1d04ab65d2387724642cce97551abc2fa47563530e1768cec2","name":"Q-Sign MellowSTREET","registered_at":"2026-06-15T15:13:13Z","symbol":"NIM0747677","token_address":"0x787c7089374c73b0e1ef8323878efc99191347eb","type":"artist","uuid":"04416e22-fb98-4183-bd94-e737df0e80d2"}
album: Kon Kubo Bir'e, Kon Kubo But'e
  type: MusicAlbum
  date published: 2009-12-01
album: Signs of the Street
  type: MusicAlbum
  date published: 2011-08-11
  track: Sekuestra pa amor
    type: MusicRecording
    duration: PT5M53S
    duration ms: 353268
    explicit: false
    by artist: Q-Sign MellowSTREET
    in album: Signs of the Street
      type: MusicAlbum
      date published: 2011-08-11
    isrc code: QZZ792569683
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T06:50:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc056c5f532b10232ab99002bb8d41fffba65e234d98114d4a34c3557593d1cb4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958380
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958380
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ792569683
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T07:07:02Z
    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 0xc056c5f532b10232ab99002bb8d41fffba65e234d98114d4a34c3557593d1cb4. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QZZ792569683.
      date published: 2026-07-17T07:07:02Z
    audio: Sekuestra pa amor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 79.367
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.44
      additional property: Energy
        type: PropertyValue
        value: 0.881
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.487
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.52
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.788
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.637
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: The Mellowstreet Sessions
  type: MusicAlbum
  date published: 2025-08-23