Keff
type: MusicGroup
popularity: 4
followers: 175
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2486bf6549b460e1ace320d8fe477a1b30836b32e272199ee1181520c11432fe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93e5662a-4d9e-40de-b9d6-ecb02c3782d9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93e5662a-4d9e-40de-b9d6-ecb02c3782d9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/93e5662a-4d9e-40de-b9d6-ecb02c3782d9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
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 0x2486bf6549b460e1ace320d8fe477a1b30836b32e272199ee1181520c11432fe. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93e5662a-4d9e-40de-b9d6-ecb02c3782d9.json and https://artists.proofprofile.net/proofs/artist/93e5662a-4d9e-40de-b9d6-ecb02c3782d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
album: Añadido
  type: MusicAlbum
  date published: 2018-05-10
album: 2CARAS
  type: MusicAlbum
  date published: 2018-10-18
album: Voy a triunfar
  type: MusicAlbum
  date published: 2018-12-10
album: Diabla
  type: MusicAlbum
  date published: 2019-07-14
album: Petisui
  type: MusicAlbum
  date published: 2022-03-09
album: LOKA
  type: MusicAlbum
  date published: 2022-08-17
album: Brisa
  type: MusicAlbum
  date published: 2022-10-18
album: Miénteme
  type: MusicAlbum
  date published: 2022-12-06
album: He vuelto
  type: MusicAlbum
  date published: 2022-12-29
album: Fumeteo
  type: MusicAlbum
  date published: 2023-02-28
album: Rosa
  type: MusicAlbum
  date published: 2023-04-25
album: Un beso de esos
  type: MusicAlbum
  date published: 2023-07-10
album: Un beso de esos
  type: MusicAlbum
  date published: 2023-07-10
album: Pa lo chica que es
  type: MusicAlbum
  date published: 2023-08-15
album: Freestyle
  type: MusicAlbum
  date published: 2023-09-18
album: Jóvenes locos
  type: MusicAlbum
  date published: 2024-01-23
album: Jóvenes locos
  type: MusicAlbum
  date published: 2024-01-23
album: Cielo gris
  type: MusicAlbum
  date published: 2024-07-25
album: Cielo gris
  type: MusicAlbum
  date published: 2024-07-25
album: Siente
  type: MusicAlbum
  date published: 2024-10-25
album: Zapato de cristal
  type: MusicAlbum
  date published: 2024-12-27