İzmirli Cafer
type: MusicGroup
genre: oyun havasi
popularity: 3
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2aa9546661c8e0d6cc87d0d39f91a70f15acc0ff7aa22751bd0d9fc9d3bb192
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4defd5f-f8da-4776-8253-78d1224328ce.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4defd5f-f8da-4776-8253-78d1224328ce.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c4defd5f-f8da-4776-8253-78d1224328ce
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc2aa9546661c8e0d6cc87d0d39f91a70f15acc0ff7aa22751bd0d9fc9d3bb192","name":"İzmirli Cafer","registered_at":"2026-06-20T20:44:44Z","symbol":"NIM1710587","token_address":"0x3f2e12142417d22ebbfc77fb203b78b9474da60f","type":"artist","uuid":"c4defd5f-f8da-4776-8253-78d1224328ce"}
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 0xc2aa9546661c8e0d6cc87d0d39f91a70f15acc0ff7aa22751bd0d9fc9d3bb192. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4defd5f-f8da-4776-8253-78d1224328ce.json and https://artists.proofprofile.net/proofs/artist/c4defd5f-f8da-4776-8253-78d1224328ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0xc2aa9546661c8e0d6cc87d0d39f91a70f15acc0ff7aa22751bd0d9fc9d3bb192","name":"İzmirli Cafer","registered_at":"2026-06-20T20:44:44Z","symbol":"NIM1710587","token_address":"0x3f2e12142417d22ebbfc77fb203b78b9474da60f","type":"artist","uuid":"c4defd5f-f8da-4776-8253-78d1224328ce"}
album: Gamzeli Yarim
  type: MusicAlbum
  date published: 2024-04-15
  track: Gamzeli Yarim
    type: MusicRecording
    duration: PT4M57S
    duration ms: 297041
    explicit: false
    by artist: İzmirli Cafer
    in album: Gamzeli Yarim
      type: MusicAlbum
      date published: 2024-04-15
    genre: oyun havasi
    isrc code: QZMZ92458478
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T23:39:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0a8117b5cfbd9606ba81a2f318083e4b655460cf1bea54e50cc8da5adb3d5662
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958342
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958342
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92458478
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T02:40:49Z
    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 0x0a8117b5cfbd9606ba81a2f318083e4b655460cf1bea54e50cc8da5adb3d5662. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:40:49Z), 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/QZMZ92458478.
      date published: 2026-07-17T02:40:49Z
    audio: Gamzeli Yarim
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 152.988
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.614
      additional property: Energy
        type: PropertyValue
        value: 0.878
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.349
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.13
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.932
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.105
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor