Gustavo Abreu
type: MusicGroup
genre: pagode
genre: samba
popularity: 11
followers: 125
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7b58af74e44a7b1f183f13ac63df9624b8fc239dd4c8a6799b85ce078282a016
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953636
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953636
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3736079a-3cc8-4707-9d6c-35f316f4eef8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3736079a-3cc8-4707-9d6c-35f316f4eef8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3736079a-3cc8-4707-9d6c-35f316f4eef8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:03:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7b58af74e44a7b1f183f13ac63df9624b8fc239dd4c8a6799b85ce078282a016","name":"Gustavo Abreu","registered_at":"2026-06-14T10:16:22Z","symbol":"NIM0421506","token_address":"0xdeedf6eed122abf484615ec83229d0ba92cdc6a0","type":"artist","uuid":"3736079a-3cc8-4707-9d6c-35f316f4eef8"}
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 0x7b58af74e44a7b1f183f13ac63df9624b8fc239dd4c8a6799b85ce078282a016. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3736079a-3cc8-4707-9d6c-35f316f4eef8.json and https://artists.proofprofile.net/proofs/artist/3736079a-3cc8-4707-9d6c-35f316f4eef8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x7b58af74e44a7b1f183f13ac63df9624b8fc239dd4c8a6799b85ce078282a016","name":"Gustavo Abreu","registered_at":"2026-06-14T10:16:22Z","symbol":"NIM0421506","token_address":"0xdeedf6eed122abf484615ec83229d0ba92cdc6a0","type":"artist","uuid":"3736079a-3cc8-4707-9d6c-35f316f4eef8"}
album: Gustavo Abreu
  type: MusicAlbum
  date published: 2023-11-06
album: Gustavo Abreu Autorais
  type: MusicAlbum
  date published: 2024-01-15
album: Agradece
  type: MusicAlbum
  date published: 2024-09-27