Sezer Ulker
type: MusicGroup
popularity: 5
followers: 196
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8adf21c2121548730da002acfea0836391862d50160c1231c6ce7316b1b8139
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4610839e-8553-4a45-a5eb-8f1cb3f9082c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4610839e-8553-4a45-a5eb-8f1cb3f9082c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4610839e-8553-4a45-a5eb-8f1cb3f9082c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb8adf21c2121548730da002acfea0836391862d50160c1231c6ce7316b1b8139","name":"Sezer Ulker","registered_at":"2026-06-16T13:57:53Z","symbol":"NIM1073394","token_address":"0x50d931d059340b487e5a70af42223ecfeea9408c","type":"artist","uuid":"4610839e-8553-4a45-a5eb-8f1cb3f9082c"}
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 0xb8adf21c2121548730da002acfea0836391862d50160c1231c6ce7316b1b8139. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4610839e-8553-4a45-a5eb-8f1cb3f9082c.json and https://artists.proofprofile.net/proofs/artist/4610839e-8553-4a45-a5eb-8f1cb3f9082c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xb8adf21c2121548730da002acfea0836391862d50160c1231c6ce7316b1b8139","name":"Sezer Ulker","registered_at":"2026-06-16T13:57:53Z","symbol":"NIM1073394","token_address":"0x50d931d059340b487e5a70af42223ecfeea9408c","type":"artist","uuid":"4610839e-8553-4a45-a5eb-8f1cb3f9082c"}
album: Medusa
  type: MusicAlbum
  date published: 2018-10-20
  track: Medusa
    type: MusicRecording
    duration: PT6M20S
    duration ms: 380000
    explicit: false
    by artist: Sezer Ulker
    in album: Medusa
      type: MusicAlbum
      date published: 2018-10-20
    isrc code: FR59R1890446
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T02:45:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xacbf1ed7ea92a7adc1dab73e0530b38abf0f69e7a26cc88291a2fccbe966c62e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R1890446
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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 0xacbf1ed7ea92a7adc1dab73e0530b38abf0f69e7a26cc88291a2fccbe966c62e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR59R1890446.
      date published: 2026-07-19T07:14:39Z
    audio: Medusa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.013
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.841
      additional property: Energy
        type: PropertyValue
        value: 0.892
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.021
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.754
      additional property: Liveness
        type: PropertyValue
        value: 0.124
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.033
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.16
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: I Need to Know
  type: MusicAlbum
  date published: 2019-01-30
album: Medusa
  type: MusicAlbum
  date published: 2019-05-18
album: Phaselis
  type: MusicAlbum
  date published: 2019-08-11
album: Phaselis
  type: MusicAlbum
  date published: 2019-08-11
album: Go Back
  type: MusicAlbum
  date published: 2020-07-28
album: Go Back (Igi Remix)
  type: MusicAlbum
  date published: 2021-01-22
album: Love of Yesterday
  type: MusicAlbum
  date published: 2022-02-11
album: Illusion of Us
  type: MusicAlbum
  date published: 2022-08-26
album: Another Life
  type: MusicAlbum
  date published: 2023-09-29
album: Sleepless Nights
  type: MusicAlbum
  date published: 2024-08-23
album: Creepin'
  type: MusicAlbum
  date published: 2024-09-06
album: Pleiades
  type: MusicAlbum
  date published: 2025-01-23
album: One More Time
  type: MusicAlbum
  date published: 2025-11-04
album: Empty Streets
  type: MusicAlbum
  date published: 2025-11-12