Efe Kars
type: MusicGroup
popularity: 2
followers: 93
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x240750cc7a37fb7b5c09d4f6b4b04478d53bc970192363a094433eba81ffda5c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf24d915-a6c1-47a7-9e6f-42896e70584c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf24d915-a6c1-47a7-9e6f-42896e70584c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cf24d915-a6c1-47a7-9e6f-42896e70584c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x240750cc7a37fb7b5c09d4f6b4b04478d53bc970192363a094433eba81ffda5c","name":"Efe Kars","registered_at":"2026-06-21T00:17:51Z","symbol":"NIM1760105","token_address":"0xe7d92f41932284e937105ba0173cd4344a3bc5a9","type":"artist","uuid":"cf24d915-a6c1-47a7-9e6f-42896e70584c"}
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 0x240750cc7a37fb7b5c09d4f6b4b04478d53bc970192363a094433eba81ffda5c. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf24d915-a6c1-47a7-9e6f-42896e70584c.json and https://artists.proofprofile.net/proofs/artist/cf24d915-a6c1-47a7-9e6f-42896e70584c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x240750cc7a37fb7b5c09d4f6b4b04478d53bc970192363a094433eba81ffda5c","name":"Efe Kars","registered_at":"2026-06-21T00:17:51Z","symbol":"NIM1760105","token_address":"0xe7d92f41932284e937105ba0173cd4344a3bc5a9","type":"artist","uuid":"cf24d915-a6c1-47a7-9e6f-42896e70584c"}
album: Koz
  type: MusicAlbum
  date published: 2023-03-17
album: Batıyorum
  type: MusicAlbum
  date published: 2023-04-28
album: Caddeler Yalan Söyler
  type: MusicAlbum
  date published: 2023-12-01
album: Yin Yang
  type: MusicAlbum
  date published: 2023-12-15
album: Ama Yok Yolu
  type: MusicAlbum
  date published: 2025-05-16
  track: Ama Yok Yolu
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175200
    explicit: false
    by artist: Efe Kars
    in album: Ama Yok Yolu
      type: MusicAlbum
      date published: 2025-05-16
    isrc code: TR0132500008
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T06:21:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb8874a003f158c680647ad541e174b5d90282d517ed6a8df41ed634f44c5f9a9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958838
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958838
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0132500008
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T07:01:21Z
    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 0xb8874a003f158c680647ad541e174b5d90282d517ed6a8df41ed634f44c5f9a9. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TR0132500008.
      date published: 2026-07-20T07:01:21Z
    audio: Ama Yok Yolu
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.953
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.631
      additional property: Energy
        type: PropertyValue
        value: 0.805
      additional property: Speechiness
        type: PropertyValue
        value: 0.09
      additional property: Acousticness
        type: PropertyValue
        value: 0.193
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.307
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.642
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.88
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major