Serpil Yalçın
type: MusicGroup
popularity: 5
followers: 38
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6edc694015c9a10e75bc0c067c32e92f25bb9870e508c1ad88a8c2406afff8ca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f035cbc5-3690-4c7f-9f50-84f630b130d3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f035cbc5-3690-4c7f-9f50-84f630b130d3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f035cbc5-3690-4c7f-9f50-84f630b130d3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6edc694015c9a10e75bc0c067c32e92f25bb9870e508c1ad88a8c2406afff8ca","name":"Serpil Yalçın","registered_at":"2026-06-21T12:44:10Z","symbol":"NIM1927056","token_address":"0x780e0c546346f151417974f06813beff5b0832ff","type":"artist","uuid":"f035cbc5-3690-4c7f-9f50-84f630b130d3"}
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 0x6edc694015c9a10e75bc0c067c32e92f25bb9870e508c1ad88a8c2406afff8ca. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f035cbc5-3690-4c7f-9f50-84f630b130d3.json and https://artists.proofprofile.net/proofs/artist/f035cbc5-3690-4c7f-9f50-84f630b130d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x6edc694015c9a10e75bc0c067c32e92f25bb9870e508c1ad88a8c2406afff8ca","name":"Serpil Yalçın","registered_at":"2026-06-21T12:44:10Z","symbol":"NIM1927056","token_address":"0x780e0c546346f151417974f06813beff5b0832ff","type":"artist","uuid":"f035cbc5-3690-4c7f-9f50-84f630b130d3"}
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