El Black MA
type: MusicGroup
popularity: 7
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e6c036e0448d5cb5a7f6d8629b9d7ca14c5659903e0010cd127e6a2ef4211a0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d325e3e-fc7f-4cb5-af67-b7b00e40ad39.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d325e3e-fc7f-4cb5-af67-b7b00e40ad39.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3d325e3e-fc7f-4cb5-af67-b7b00e40ad39
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1e6c036e0448d5cb5a7f6d8629b9d7ca14c5659903e0010cd127e6a2ef4211a0","name":"El Black MA","registered_at":"2026-06-16T10:53:40Z","symbol":"NIM1029464","token_address":"0x9d435c86d89a554728ac3ccac15e33c60e7f07ff","type":"artist","uuid":"3d325e3e-fc7f-4cb5-af67-b7b00e40ad39"}
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 0x1e6c036e0448d5cb5a7f6d8629b9d7ca14c5659903e0010cd127e6a2ef4211a0. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d325e3e-fc7f-4cb5-af67-b7b00e40ad39.json and https://artists.proofprofile.net/proofs/artist/3d325e3e-fc7f-4cb5-af67-b7b00e40ad39.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1e6c036e0448d5cb5a7f6d8629b9d7ca14c5659903e0010cd127e6a2ef4211a0","name":"El Black MA","registered_at":"2026-06-16T10:53:40Z","symbol":"NIM1029464","token_address":"0x9d435c86d89a554728ac3ccac15e33c60e7f07ff","type":"artist","uuid":"3d325e3e-fc7f-4cb5-af67-b7b00e40ad39"}
album: No Queremos Rana
  type: MusicAlbum
  date published: 2024-07-31
  track: No Queremos Rana
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164225
    explicit: false
    by artist: El Black MA
    in album: No Queremos Rana
      type: MusicAlbum
      date published: 2024-07-31
    isrc code: ESA012407782
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T12:36:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x248a29eadcc34af9e784cb30d7ebb25e0efa27ebfe0f2c51e12113bc1d259230
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958157
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958157
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA012407782
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T15:39:45Z
    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 0x248a29eadcc34af9e784cb30d7ebb25e0efa27ebfe0f2c51e12113bc1d259230. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:39:45Z), 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/ESA012407782.
      date published: 2026-07-15T15:39:45Z
    audio: No Queremos Rana
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.868
      additional property: Energy
        type: PropertyValue
        value: 0.477
      additional property: Speechiness
        type: PropertyValue
        value: 0.085
      additional property: Acousticness
        type: PropertyValue
        value: 0.587
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.12
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.498
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.63
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major