Kadu Freire
type: MusicGroup
genre: forró
popularity: 5
followers: 809
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff5a96d795ae22e362a795c6e0ca6f6b06045d79a2ea20c6f5ce5b0fc4426d1a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953922
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953922
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b0b5e62-e643-492a-82f7-5e3fe771f38e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b0b5e62-e643-492a-82f7-5e3fe771f38e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1b0b5e62-e643-492a-82f7-5e3fe771f38e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:36:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xff5a96d795ae22e362a795c6e0ca6f6b06045d79a2ea20c6f5ce5b0fc4426d1a","name":"Kadu Freire","registered_at":"2026-06-15T22:59:18Z","symbol":"NIM0858867","token_address":"0xffd38eebbb32767a4bc4c79ecdc200e2c7c77d3a","type":"artist","uuid":"1b0b5e62-e643-492a-82f7-5e3fe771f38e"}
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 0xff5a96d795ae22e362a795c6e0ca6f6b06045d79a2ea20c6f5ce5b0fc4426d1a. Chain 2 (Bitcoin): anchored in block 953922 (2026-06-16T09:36:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b0b5e62-e643-492a-82f7-5e3fe771f38e.json and https://artists.proofprofile.net/proofs/artist/1b0b5e62-e643-492a-82f7-5e3fe771f38e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T09:36:34Z
  text: {"copyright_id":"0xff5a96d795ae22e362a795c6e0ca6f6b06045d79a2ea20c6f5ce5b0fc4426d1a","name":"Kadu Freire","registered_at":"2026-06-15T22:59:18Z","symbol":"NIM0858867","token_address":"0xffd38eebbb32767a4bc4c79ecdc200e2c7c77d3a","type":"artist","uuid":"1b0b5e62-e643-492a-82f7-5e3fe771f38e"}
album: Você Me Perdeu
  type: MusicAlbum
  date published: 2020-12-20
album: Kadu Freire
  type: MusicAlbum
  date published: 2021-02-12
album: Baú das Antigas (Cover)
  type: MusicAlbum
  date published: 2021-06-07
album: Vybe
  type: MusicAlbum
  date published: 2021-08-01
album: Paradinha
  type: MusicAlbum
  date published: 2022-01-01
album: Baú das Antigas II
  type: MusicAlbum
  date published: 2022-04-10
album: Kadu Freire
  type: MusicAlbum
  date published: 2022-10-09
album: Quem É o Louco Entre Nós
  type: MusicAlbum
  date published: 2023-07-31
album: Atualizou 1.1
  type: MusicAlbum
  date published: 2024-02-04
album: Não Sai de Mim
  type: MusicAlbum
  date published: 2024-04-21
album: De um Jeito Diferente
  type: MusicAlbum
  date published: 2024-12-05