KAKÁ
type: MusicGroup
genre: portuguese hip hop
popularity: 6
followers: 148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf0d132a4641bcf2f1afbfc5865c7a5fa9402c327a3f5b90dc030351d47bc51e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4afb453d-32da-4fe2-9009-88d8c70ab1c0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4afb453d-32da-4fe2-9009-88d8c70ab1c0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4afb453d-32da-4fe2-9009-88d8c70ab1c0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf0d132a4641bcf2f1afbfc5865c7a5fa9402c327a3f5b90dc030351d47bc51e3","name":"KAKÁ","registered_at":"2026-06-16T15:41:29Z","symbol":"NIM1098128","token_address":"0x43a2f981121c2bd93f0a07ff965972387c7e0a6f","type":"artist","uuid":"4afb453d-32da-4fe2-9009-88d8c70ab1c0"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d132a4641bcf2f1afbfc5865c7a5fa9402c327a3f5b90dc030351d47bc51e3. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4afb453d-32da-4fe2-9009-88d8c70ab1c0.json and https://artists.proofprofile.net/proofs/artist/4afb453d-32da-4fe2-9009-88d8c70ab1c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xf0d132a4641bcf2f1afbfc5865c7a5fa9402c327a3f5b90dc030351d47bc51e3","name":"KAKÁ","registered_at":"2026-06-16T15:41:29Z","symbol":"NIM1098128","token_address":"0x43a2f981121c2bd93f0a07ff965972387c7e0a6f","type":"artist","uuid":"4afb453d-32da-4fe2-9009-88d8c70ab1c0"}
album: Vem Vai
  type: MusicAlbum
  date published: 2018-12-03
album: Espelho Meu
  type: MusicAlbum
  date published: 2018-12-03
album: Diz Me
  type: MusicAlbum
  date published: 2019-02-02
album: Um minuto
  type: MusicAlbum
  date published: 2019-08-14