Fred Cabral
type: MusicGroup
popularity: 2
followers: 280
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1407e01d6d814e2c5767691d7584189f497a8b9fd0b8b79840ef9b4545ffb68
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d736af00-6feb-4b8b-bc81-c28613a4e0c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d736af00-6feb-4b8b-bc81-c28613a4e0c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d736af00-6feb-4b8b-bc81-c28613a4e0c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb1407e01d6d814e2c5767691d7584189f497a8b9fd0b8b79840ef9b4545ffb68","name":"Fred Cabral","registered_at":"2026-06-21T03:01:21Z","symbol":"NIM1799647","token_address":"0xd53cfd64fbffe2be3f312ecaaafab4dd03ac151c","type":"artist","uuid":"d736af00-6feb-4b8b-bc81-c28613a4e0c7"}
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 0xb1407e01d6d814e2c5767691d7584189f497a8b9fd0b8b79840ef9b4545ffb68. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d736af00-6feb-4b8b-bc81-c28613a4e0c7.json and https://artists.proofprofile.net/proofs/artist/d736af00-6feb-4b8b-bc81-c28613a4e0c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0xb1407e01d6d814e2c5767691d7584189f497a8b9fd0b8b79840ef9b4545ffb68","name":"Fred Cabral","registered_at":"2026-06-21T03:01:21Z","symbol":"NIM1799647","token_address":"0xd53cfd64fbffe2be3f312ecaaafab4dd03ac151c","type":"artist","uuid":"d736af00-6feb-4b8b-bc81-c28613a4e0c7"}
album: Tudo Novo
  type: MusicAlbum
  date published: 2020-08-28
album: Enquanto Eu Viver
  type: MusicAlbum
  date published: 2020-12-30
album: Eu Vou Te Amar
  type: MusicAlbum
  date published: 2021-08-07
album: Sonhos
  type: MusicAlbum
  date published: 2024-04-26
album: Quem É Esse
  type: MusicAlbum
  date published: 2025-08-12