Big Black
type: MusicGroup
description: Big Black was an American punk rock band from Evanston, Illinois, active from 1981 to 1987. Founded first as a solo project by singer and guitarist Steve Albini, the band became a trio with an initial
popularity: 35
followers: 443
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f3528969190ed76ebfcf07a6b7ddc7dd66af0b1a8b7d63d8d6a6b8d2c08daeb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9d4ee10-24c7-45eb-9d3e-f1be9c25b21e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9d4ee10-24c7-45eb-9d3e-f1be9c25b21e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d9d4ee10-24c7-45eb-9d3e-f1be9c25b21e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9f3528969190ed76ebfcf07a6b7ddc7dd66af0b1a8b7d63d8d6a6b8d2c08daeb","name":"Big Black","registered_at":"2026-06-12T11:15:49Z","symbol":"NIM0281072","token_address":"0xdf9a68df1c40d5c523a0df2b419bc691d30ff92c","type":"artist","uuid":"d9d4ee10-24c7-45eb-9d3e-f1be9c25b21e"}
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 0x9f3528969190ed76ebfcf07a6b7ddc7dd66af0b1a8b7d63d8d6a6b8d2c08daeb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9d4ee10-24c7-45eb-9d3e-f1be9c25b21e.json and https://artists.proofprofile.net/proofs/artist/d9d4ee10-24c7-45eb-9d3e-f1be9c25b21e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x9f3528969190ed76ebfcf07a6b7ddc7dd66af0b1a8b7d63d8d6a6b8d2c08daeb","name":"Big Black","registered_at":"2026-06-12T11:15:49Z","symbol":"NIM0281072","token_address":"0xdf9a68df1c40d5c523a0df2b419bc691d30ff92c","type":"artist","uuid":"d9d4ee10-24c7-45eb-9d3e-f1be9c25b21e"}
album: Talk To Me
  type: MusicAlbum
  date published: 2024-02-09
album: Cae La Noche (Pasame El Porro)
  type: MusicAlbum
  date published: 2024-02-11
album: Pásame el Porro
  type: MusicAlbum
  date published: 2024-02-23
album: Contigo
  type: MusicAlbum
  date published: 2024-03-14
album: Contigo
  type: MusicAlbum
  date published: 2024-03-14
album: Contigo
  type: MusicAlbum
  date published: 2024-03-14
  track: Contigo
    type: MusicRecording
    duration: PT3M56S
    duration ms: 236169
    explicit: false
    by artist: Big Black
    in album: Contigo
      type: MusicAlbum
      date published: 2024-03-14
    isrc code: QZHN32477495
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T12:35:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb4e611c228196a96411e91ed8afe652ad855a3c63861c098196e65c9a4102526
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956560
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956560
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32477495
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T23:28:02Z
    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 0xb4e611c228196a96411e91ed8afe652ad855a3c63861c098196e65c9a4102526. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHN32477495.
      date published: 2026-07-03T23:28:02Z
    audio: Contigo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.004
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.779
      additional property: Energy
        type: PropertyValue
        value: 0.661
      additional property: Speechiness
        type: PropertyValue
        value: 0.078
      additional property: Acousticness
        type: PropertyValue
        value: 0.266
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.377
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.186
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Tu Cuerpo
  type: MusicAlbum
  date published: 2024-03-29
album: Mi niña
  type: MusicAlbum
  date published: 2024-04-19
album: Repetirlo
  type: MusicAlbum
  date published: 2024-08-04
album: Por Ti
  type: MusicAlbum
  date published: 2024-08-07
album: Por Ti
  type: MusicAlbum
  date published: 2024-08-07
album: Repetirlo
  type: MusicAlbum
  date published: 2024-08-09
album: Repetirlo
  type: MusicAlbum
  date published: 2024-08-09
album: Por Amor
  type: MusicAlbum
  date published: 2024-08-15
album: Por Amor
  type: MusicAlbum
  date published: 2024-08-15
album: Betty Boop
  type: MusicAlbum
  date published: 2024-10-13
album: Betty Boop
  type: MusicAlbum
  date published: 2024-10-25
album: Betty Boop
  type: MusicAlbum
  date published: 2024-10-25
album: Junto A Tí
  type: MusicAlbum
  date published: 2025-02-07
album: Junto A Tí
  type: MusicAlbum
  date published: 2025-02-07
album: Junto A Tí
  type: MusicAlbum
  date published: 2025-02-07
album: Junto A Tí
  type: MusicAlbum
  date published: 2025-02-07
album: Hoy Quiero (Los Bro RD Remix)
  type: MusicAlbum
  date published: 2025-05-14