Erdal Kayan
type: MusicGroup
genre: turkish pop
popularity: 11
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa310b99f1b05eeb0825dce1c8e172c0b59e73d45e60cfc0ba2e303bb0981262c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953770
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953770
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9ff70a7a-b5b7-4f0d-8450-f64f8f1cbc8b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9ff70a7a-b5b7-4f0d-8450-f64f8f1cbc8b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9ff70a7a-b5b7-4f0d-8450-f64f8f1cbc8b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:50:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa310b99f1b05eeb0825dce1c8e172c0b59e73d45e60cfc0ba2e303bb0981262c","name":"Erdal Kayan","registered_at":"2026-06-14T21:18:22Z","symbol":"NIM0579390","token_address":"0x627578d4fc0dd27a1a844afc5f88c148afcd8586","type":"artist","uuid":"9ff70a7a-b5b7-4f0d-8450-f64f8f1cbc8b"}
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 0xa310b99f1b05eeb0825dce1c8e172c0b59e73d45e60cfc0ba2e303bb0981262c. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ff70a7a-b5b7-4f0d-8450-f64f8f1cbc8b.json and https://artists.proofprofile.net/proofs/artist/9ff70a7a-b5b7-4f0d-8450-f64f8f1cbc8b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0xa310b99f1b05eeb0825dce1c8e172c0b59e73d45e60cfc0ba2e303bb0981262c","name":"Erdal Kayan","registered_at":"2026-06-14T21:18:22Z","symbol":"NIM0579390","token_address":"0x627578d4fc0dd27a1a844afc5f88c148afcd8586","type":"artist","uuid":"9ff70a7a-b5b7-4f0d-8450-f64f8f1cbc8b"}
album: Bilemem
  type: MusicAlbum
  date published: 2025-07-18