B4CK
type: MusicGroup
popularity: 12
followers: 46
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78d4f809fce7a8995b9b6aac99749d10f456dfa3bf95273a722efc7e944861bb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4f053b2f-2fb2-4d5c-95ce-9e6632ae4b80.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4f053b2f-2fb2-4d5c-95ce-9e6632ae4b80.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4f053b2f-2fb2-4d5c-95ce-9e6632ae4b80
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
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 0x78d4f809fce7a8995b9b6aac99749d10f456dfa3bf95273a722efc7e944861bb. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f053b2f-2fb2-4d5c-95ce-9e6632ae4b80.json and https://artists.proofprofile.net/proofs/artist/4f053b2f-2fb2-4d5c-95ce-9e6632ae4b80.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
album: Viexo
  type: MusicAlbum
  date published: 2022-03-31
album: Chasing the Sun
  type: MusicAlbum
  date published: 2023-01-17
album: Rmstrd
  type: MusicAlbum
  date published: 2023-01-19
album: Violin
  type: MusicAlbum
  date published: 2023-03-10
album: Said It After
  type: MusicAlbum
  date published: 2023-04-26
album: Alert of Woob
  type: MusicAlbum
  date published: 2023-06-13
album: My Desire
  type: MusicAlbum
  date published: 2023-07-01
album: Never Goin' broke
  type: MusicAlbum
  date published: 2023-08-01
album: Flip the Bird (Remix)
  type: MusicAlbum
  date published: 2023-08-05
album: Dead Desires
  type: MusicAlbum
  date published: 2023-09-24
album: "Sucks to Be You"
  type: MusicAlbum
  date published: 2023-10-05
album: Tiggy Top
  type: MusicAlbum
  date published: 2023-12-31
album: Industrial Error
  type: MusicAlbum
  date published: 2024-02-07
album: Fuckin' turbo Charger
  type: MusicAlbum
  date published: 2024-02-18
album: Quantum Resonance
  type: MusicAlbum
  date published: 2024-03-20
album: Eat My Mind
  type: MusicAlbum
  date published: 2024-04-05
album: They Don't Know
  type: MusicAlbum
  date published: 2024-06-16
album: Ataya Ağıt
  type: MusicAlbum
  date published: 2024-08-30
album: Soulless
  type: MusicAlbum
  date published: 2024-08-31
album: Appellation of Lord
  type: MusicAlbum
  date published: 2024-09-21
album: Evre
  type: MusicAlbum
  date published: 2024-10-18
album: Patience of Silence
  type: MusicAlbum
  date published: 2024-10-21
album: Hanımefendi
  type: MusicAlbum
  date published: 2025-02-26
  track: Hanımefendi
    type: MusicRecording
    duration: PT2M51S
    duration ms: 171494
    explicit: false
    by artist: B4CK
    in album: Hanımefendi
      type: MusicAlbum
      date published: 2025-02-26
    isrc code: TCAJI2555471
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T00:00:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3a7bbd6caf57f2bc49e28a433e79529a7283410329c2f4f8a4ca4ad4f9af8522
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956440
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956440
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJI2555471
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T04:03:57Z
    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 0x3a7bbd6caf57f2bc49e28a433e79529a7283410329c2f4f8a4ca4ad4f9af8522. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCAJI2555471.
      date published: 2026-07-03T04:03:57Z
    audio: Hanımefendi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.929
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.662
      additional property: Energy
        type: PropertyValue
        value: 0.503
      additional property: Speechiness
        type: PropertyValue
        value: 0.062
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.021
      additional property: Liveness
        type: PropertyValue
        value: 0.071
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.214
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.019
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor