Ivan Kurtć
type: MusicGroup
popularity: 2
followers: 63
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2753233c51d1bfb2e58de25f211539125c1c948a75bb7bc2b523dfad83f2482
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2e287b7-4e7f-4989-93bf-6a73a3210af5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2e287b7-4e7f-4989-93bf-6a73a3210af5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b2e287b7-4e7f-4989-93bf-6a73a3210af5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd2753233c51d1bfb2e58de25f211539125c1c948a75bb7bc2b523dfad83f2482","name":"Ivan Kurtć","registered_at":"2026-06-20T13:32:06Z","symbol":"NIM1621090","token_address":"0xc2945d7cdc79e298d34fd637c8279c872f786fee","type":"artist","uuid":"b2e287b7-4e7f-4989-93bf-6a73a3210af5"}
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 0xd2753233c51d1bfb2e58de25f211539125c1c948a75bb7bc2b523dfad83f2482. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2e287b7-4e7f-4989-93bf-6a73a3210af5.json and https://artists.proofprofile.net/proofs/artist/b2e287b7-4e7f-4989-93bf-6a73a3210af5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xd2753233c51d1bfb2e58de25f211539125c1c948a75bb7bc2b523dfad83f2482","name":"Ivan Kurtć","registered_at":"2026-06-20T13:32:06Z","symbol":"NIM1621090","token_address":"0xc2945d7cdc79e298d34fd637c8279c872f786fee","type":"artist","uuid":"b2e287b7-4e7f-4989-93bf-6a73a3210af5"}
album: Taši Tanana
  type: MusicAlbum
  date published: 2022-03-10
  track: Taši Tanana
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222000
    explicit: false
    by artist: Ivan Kurtć
    in album: Taši Tanana
      type: MusicAlbum
      date published: 2022-03-10
    isrc code: RSA222190077
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T00:50:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0e2a5d4dd1e9cdf9cc312dc8e946663411bcc360f9f39a4a382470cc6c385ccd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RSA222190077
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:53:18Z
    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 0x0e2a5d4dd1e9cdf9cc312dc8e946663411bcc360f9f39a4a382470cc6c385ccd. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:53:18Z), 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/RSA222190077.
      date published: 2026-07-21T03:53:18Z
    audio: Taši Tanana
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.961
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.669
      additional property: Energy
        type: PropertyValue
        value: 0.694
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.516
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.08
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.899
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.33
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor