Duarte Lôbo
type: MusicGroup
popularity: 5
followers: 61
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbdca21af2db655c341d3d0d9217a7e50d80a3134766c4dcd317c522def2cf049
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953976
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953976
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2bb0c920-2cb3-4c57-a573-9dbf438b7c6f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2bb0c920-2cb3-4c57-a573-9dbf438b7c6f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2bb0c920-2cb3-4c57-a573-9dbf438b7c6f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:55:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbdca21af2db655c341d3d0d9217a7e50d80a3134766c4dcd317c522def2cf049","name":"Duarte Lôbo","registered_at":"2026-06-16T04:44:20Z","symbol":"NIM0941277","token_address":"0x33ac08fd927cee1bdceb904f88ac6936573a31ea","type":"artist","uuid":"2bb0c920-2cb3-4c57-a573-9dbf438b7c6f"}
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 0xbdca21af2db655c341d3d0d9217a7e50d80a3134766c4dcd317c522def2cf049. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2bb0c920-2cb3-4c57-a573-9dbf438b7c6f.json and https://artists.proofprofile.net/proofs/artist/2bb0c920-2cb3-4c57-a573-9dbf438b7c6f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0xbdca21af2db655c341d3d0d9217a7e50d80a3134766c4dcd317c522def2cf049","name":"Duarte Lôbo","registered_at":"2026-06-16T04:44:20Z","symbol":"NIM0941277","token_address":"0x33ac08fd927cee1bdceb904f88ac6936573a31ea","type":"artist","uuid":"2bb0c920-2cb3-4c57-a573-9dbf438b7c6f"}
album: Duarte Lôbo - Requiem for six voices (Missa pro defunctis a 6)
  type: MusicAlbum
  date published: 1992-12-01