Kalvo Klein
type: MusicGroup
popularity: 6
followers: 168
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4d99abedb47e8cda47e39eb993a1a491e19571ecd733d2147445ce7f1726a4bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9e3614b-9122-4d46-8a4c-9845a675e865.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9e3614b-9122-4d46-8a4c-9845a675e865.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a9e3614b-9122-4d46-8a4c-9845a675e865
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4d99abedb47e8cda47e39eb993a1a491e19571ecd733d2147445ce7f1726a4bf","name":"Kalvo Klein","registered_at":"2026-06-20T09:24:25Z","symbol":"NIM1578098","token_address":"0x67c11a58df59f6359cb4ab569a0b1a1d7632c782","type":"artist","uuid":"a9e3614b-9122-4d46-8a4c-9845a675e865"}
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 0x4d99abedb47e8cda47e39eb993a1a491e19571ecd733d2147445ce7f1726a4bf. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9e3614b-9122-4d46-8a4c-9845a675e865.json and https://artists.proofprofile.net/proofs/artist/a9e3614b-9122-4d46-8a4c-9845a675e865.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x4d99abedb47e8cda47e39eb993a1a491e19571ecd733d2147445ce7f1726a4bf","name":"Kalvo Klein","registered_at":"2026-06-20T09:24:25Z","symbol":"NIM1578098","token_address":"0x67c11a58df59f6359cb4ab569a0b1a1d7632c782","type":"artist","uuid":"a9e3614b-9122-4d46-8a4c-9845a675e865"}
album: Chica Criminal
  type: MusicAlbum
  date published: 2020-07-26
album: Chica Criminal
  type: MusicAlbum
  date published: 2021-03-21
album: Occhi Rouges
  type: MusicAlbum
  date published: 2023-04-12
album: JET-LAG
  type: MusicAlbum
  date published: 2023-05-15
album: EN LA CAMA
  type: MusicAlbum
  date published: 2023-08-08
album: 21 FREESTYLE
  type: MusicAlbum
  date published: 2024-01-20
album: TUTA BANDANA
  type: MusicAlbum
  date published: 2024-02-27
album: POLAROID
  type: MusicAlbum
  date published: 2024-03-14
album: TOROLOCO
  type: MusicAlbum
  date published: 2024-05-25
album: MAMY
  type: MusicAlbum
  date published: 2024-07-18
album: TOROLOCO (Remix)
  type: MusicAlbum
  date published: 2024-08-09
album: BELZEBU
  type: MusicAlbum
  date published: 2024-10-25
album: Whroom
  type: MusicAlbum
  date published: 2024-11-25
album: PLATA O PLOMO (bon ton)
  type: MusicAlbum
  date published: 2025-02-20
album: DONNE (Remix)
  type: MusicAlbum
  date published: 2025-09-30