Léo Caiçara
type: MusicGroup
genre: forró
popularity: 13
followers: 160
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa45aba350a1c723aea5664dc8ba3268a6204cc3bc58ac426c3873dc9564d9f68
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953701
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953701
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7662346d-58fe-47b1-a712-72acc4f07928.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7662346d-58fe-47b1-a712-72acc4f07928.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7662346d-58fe-47b1-a712-72acc4f07928
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:16:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa45aba350a1c723aea5664dc8ba3268a6204cc3bc58ac426c3873dc9564d9f68","name":"Léo Caiçara","registered_at":"2026-06-14T16:57:09Z","symbol":"NIM0517139","token_address":"0xb58ebe34ab64bbaeb6452b3ce383523b42c8409e","type":"artist","uuid":"7662346d-58fe-47b1-a712-72acc4f07928"}
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 0xa45aba350a1c723aea5664dc8ba3268a6204cc3bc58ac426c3873dc9564d9f68. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7662346d-58fe-47b1-a712-72acc4f07928.json and https://artists.proofprofile.net/proofs/artist/7662346d-58fe-47b1-a712-72acc4f07928.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T22:16:40Z
  text: {"copyright_id":"0xa45aba350a1c723aea5664dc8ba3268a6204cc3bc58ac426c3873dc9564d9f68","name":"Léo Caiçara","registered_at":"2026-06-14T16:57:09Z","symbol":"NIM0517139","token_address":"0xb58ebe34ab64bbaeb6452b3ce383523b42c8409e","type":"artist","uuid":"7662346d-58fe-47b1-a712-72acc4f07928"}
album: Diz Pra Mim
  type: MusicAlbum
  date published: 2023-10-25
album: Baby Volta
  type: MusicAlbum
  date published: 2024-08-16