El Kefa
type: MusicGroup
popularity: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdbe62e73c94055f9ea752564dad93f245dafd26aae96f54a2f55c6f89c9a145c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9ba8de1-1ee9-4031-a2b8-efa4e0c9d2ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9ba8de1-1ee9-4031-a2b8-efa4e0c9d2ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a9ba8de1-1ee9-4031-a2b8-efa4e0c9d2ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdbe62e73c94055f9ea752564dad93f245dafd26aae96f54a2f55c6f89c9a145c","name":"El Kefa","registered_at":"2026-06-14T22:15:03Z","symbol":"NIM0592926","token_address":"0x574b1a3c36da0a43e90e45eea40638cb09e1814c","type":"artist","uuid":"a9ba8de1-1ee9-4031-a2b8-efa4e0c9d2ba"}
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 0xdbe62e73c94055f9ea752564dad93f245dafd26aae96f54a2f55c6f89c9a145c. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9ba8de1-1ee9-4031-a2b8-efa4e0c9d2ba.json and https://artists.proofprofile.net/proofs/artist/a9ba8de1-1ee9-4031-a2b8-efa4e0c9d2ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T06:12:23Z
  text: {"copyright_id":"0xdbe62e73c94055f9ea752564dad93f245dafd26aae96f54a2f55c6f89c9a145c","name":"El Kefa","registered_at":"2026-06-14T22:15:03Z","symbol":"NIM0592926","token_address":"0x574b1a3c36da0a43e90e45eea40638cb09e1814c","type":"artist","uuid":"a9ba8de1-1ee9-4031-a2b8-efa4e0c9d2ba"}
album: El Amor de Mi Vida
  type: MusicAlbum
  date published: 2025-05-07
album: Con Mas Swing
  type: MusicAlbum
  date published: 2025-08-20
album: Arrazando
  type: MusicAlbum
  date published: 2025-10-20