Cemre Polat
type: MusicGroup
popularity: 4
followers: 102
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa04927d5e3ccba564f37a7d92810dd8671dbe6ab4a53a1165ff69f9c7b46d28d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/60eca471-1c9f-4190-9b44-f5c2305c0808.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/60eca471-1c9f-4190-9b44-f5c2305c0808.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/60eca471-1c9f-4190-9b44-f5c2305c0808
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa04927d5e3ccba564f37a7d92810dd8671dbe6ab4a53a1165ff69f9c7b46d28d","name":"Cemre Polat","registered_at":"2026-06-16T23:26:34Z","symbol":"NIM1209077","token_address":"0x5b957de0e30a2ac42c5a6bafbd58309752043aa4","type":"artist","uuid":"60eca471-1c9f-4190-9b44-f5c2305c0808"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04927d5e3ccba564f37a7d92810dd8671dbe6ab4a53a1165ff69f9c7b46d28d. 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/60eca471-1c9f-4190-9b44-f5c2305c0808.json and https://artists.proofprofile.net/proofs/artist/60eca471-1c9f-4190-9b44-f5c2305c0808.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xa04927d5e3ccba564f37a7d92810dd8671dbe6ab4a53a1165ff69f9c7b46d28d","name":"Cemre Polat","registered_at":"2026-06-16T23:26:34Z","symbol":"NIM1209077","token_address":"0x5b957de0e30a2ac42c5a6bafbd58309752043aa4","type":"artist","uuid":"60eca471-1c9f-4190-9b44-f5c2305c0808"}
album: Kleiner Finger Schwur (aus "The Voice of Germany 2023") [Live]
  type: MusicAlbum
  date published: 2023-10-06
  track: Kleiner Finger Schwur (aus "The Voice of Germany 2023") - Live
    type: MusicRecording
    duration: PT1M56S
    duration ms: 116183
    explicit: false
    by artist: Cemre Polat
    in album: Kleiner Finger Schwur (aus "The Voice of Germany 2023") [Live]
      type: MusicAlbum
      date published: 2023-10-06
    isrc code: DETO32300465
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T16:35:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcf3559cb40efcb120435940ca52f11961be51209dcdd7d7368b5603933658cdd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DETO32300465
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3559cb40efcb120435940ca52f11961be51209dcdd7d7368b5603933658cdd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DETO32300465.
      date published: 2026-07-03T19:59:51Z
    audio: Kleiner Finger Schwur (aus "The Voice of Germany 2023") - Live
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.04
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.507
      additional property: Energy
        type: PropertyValue
        value: 0.515
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.577
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.663
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.464
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.538
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Broken Strings (aus "The Voice of Germany 2023") [Live]
  type: MusicAlbum
  date published: 2023-11-04