João Castellani
type: MusicGroup
popularity: 5
followers: 206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6eaa471bb0089059c905a2cc9b5784817397b5fabee03a47f43dc0127b63a8f7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8f49e134-1ce9-4d92-b69d-e03a3a2e253c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8f49e134-1ce9-4d92-b69d-e03a3a2e253c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8f49e134-1ce9-4d92-b69d-e03a3a2e253c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6eaa471bb0089059c905a2cc9b5784817397b5fabee03a47f43dc0127b63a8f7","name":"João Castellani","registered_at":"2026-06-17T16:00:38Z","symbol":"NIM1446146","token_address":"0x2d4824fb183b525ca56269962cd595ce1632bfe6","type":"artist","uuid":"8f49e134-1ce9-4d92-b69d-e03a3a2e253c"}
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 0x6eaa471bb0089059c905a2cc9b5784817397b5fabee03a47f43dc0127b63a8f7. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f49e134-1ce9-4d92-b69d-e03a3a2e253c.json and https://artists.proofprofile.net/proofs/artist/8f49e134-1ce9-4d92-b69d-e03a3a2e253c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x6eaa471bb0089059c905a2cc9b5784817397b5fabee03a47f43dc0127b63a8f7","name":"João Castellani","registered_at":"2026-06-17T16:00:38Z","symbol":"NIM1446146","token_address":"0x2d4824fb183b525ca56269962cd595ce1632bfe6","type":"artist","uuid":"8f49e134-1ce9-4d92-b69d-e03a3a2e253c"}
album: QUIPU
  type: MusicAlbum
  date published: 2020-11-29
album: Passagem
  type: MusicAlbum
  date published: 2022-01-27
album: Dos Meus Sonhos
  type: MusicAlbum
  date published: 2022-09-09
album: Primeiramente
  type: MusicAlbum
  date published: 2023-06-23
album: Sentimento
  type: MusicAlbum
  date published: 2023-10-22
album: 1206
  type: MusicAlbum
  date published: 2023-12-01