El Kin-Fer
type: MusicGroup
popularity: 6
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e8594ce72f3236b8f41ccd26e0c6a49f83954f49ff0fd16d98b058713d0d8e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc3d5b35-5265-4c93-969e-7e2ab94ee0a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc3d5b35-5265-4c93-969e-7e2ab94ee0a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bc3d5b35-5265-4c93-969e-7e2ab94ee0a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7e8594ce72f3236b8f41ccd26e0c6a49f83954f49ff0fd16d98b058713d0d8e7","name":"El Kin-Fer","registered_at":"2026-06-20T17:05:54Z","symbol":"NIM1664841","token_address":"0x5e05e2fa07dcbc65357e6c7929f6a27a7a976fe9","type":"artist","uuid":"bc3d5b35-5265-4c93-969e-7e2ab94ee0a0"}
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 0x7e8594ce72f3236b8f41ccd26e0c6a49f83954f49ff0fd16d98b058713d0d8e7. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc3d5b35-5265-4c93-969e-7e2ab94ee0a0.json and https://artists.proofprofile.net/proofs/artist/bc3d5b35-5265-4c93-969e-7e2ab94ee0a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:15:05Z
  text: {"copyright_id":"0x7e8594ce72f3236b8f41ccd26e0c6a49f83954f49ff0fd16d98b058713d0d8e7","name":"El Kin-Fer","registered_at":"2026-06-20T17:05:54Z","symbol":"NIM1664841","token_address":"0x5e05e2fa07dcbc65357e6c7929f6a27a7a976fe9","type":"artist","uuid":"bc3d5b35-5265-4c93-969e-7e2ab94ee0a0"}