Marcelo Furtado
type: MusicGroup
genre: bolero
genre: samba
popularity: 4
followers: 60
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff4d4988353c088c67f5f049bf572441590e00186c61999d54f6fe8e7d8a1601
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d7e7909-eb30-4f36-b86c-885216ca600f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d7e7909-eb30-4f36-b86c-885216ca600f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1d7e7909-eb30-4f36-b86c-885216ca600f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xff4d4988353c088c67f5f049bf572441590e00186c61999d54f6fe8e7d8a1601","name":"Marcelo Furtado","registered_at":"2026-06-15T23:50:05Z","symbol":"NIM0871001","token_address":"0xafda1f7bfa9c0df21d50d2cce913fb3af2b3540f","type":"artist","uuid":"1d7e7909-eb30-4f36-b86c-885216ca600f"}
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 0xff4d4988353c088c67f5f049bf572441590e00186c61999d54f6fe8e7d8a1601. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d7e7909-eb30-4f36-b86c-885216ca600f.json and https://artists.proofprofile.net/proofs/artist/1d7e7909-eb30-4f36-b86c-885216ca600f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T10:21:55Z
  text: {"copyright_id":"0xff4d4988353c088c67f5f049bf572441590e00186c61999d54f6fe8e7d8a1601","name":"Marcelo Furtado","registered_at":"2026-06-15T23:50:05Z","symbol":"NIM0871001","token_address":"0xafda1f7bfa9c0df21d50d2cce913fb3af2b3540f","type":"artist","uuid":"1d7e7909-eb30-4f36-b86c-885216ca600f"}
album: Aqui É Passageiro
  type: MusicAlbum
  date published: 2018-07-13