Oscar De Fontana
type: MusicGroup
genre: bolero
popularity: 2
followers: 317
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x352625c921cde8af2e5ba7d6f32a06111ed61caef3550218193d4f335eec2647
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbd72aba-d9f0-44d5-8144-861bf8374f16.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbd72aba-d9f0-44d5-8144-861bf8374f16.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dbd72aba-d9f0-44d5-8144-861bf8374f16
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x352625c921cde8af2e5ba7d6f32a06111ed61caef3550218193d4f335eec2647","name":"Oscar De Fontana","registered_at":"2026-06-21T05:09:58Z","symbol":"NIM1829562","token_address":"0x9afe887e0aac433895fcdaeac31e1da89c742496","type":"artist","uuid":"dbd72aba-d9f0-44d5-8144-861bf8374f16"}
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 0x352625c921cde8af2e5ba7d6f32a06111ed61caef3550218193d4f335eec2647. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbd72aba-d9f0-44d5-8144-861bf8374f16.json and https://artists.proofprofile.net/proofs/artist/dbd72aba-d9f0-44d5-8144-861bf8374f16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0x352625c921cde8af2e5ba7d6f32a06111ed61caef3550218193d4f335eec2647","name":"Oscar De Fontana","registered_at":"2026-06-21T05:09:58Z","symbol":"NIM1829562","token_address":"0x9afe887e0aac433895fcdaeac31e1da89c742496","type":"artist","uuid":"dbd72aba-d9f0-44d5-8144-861bf8374f16"}
album: Mucho...Mucho...Mucho
  type: MusicAlbum
  date published: 1993-11-09
album: Doblemente Romantico
  type: MusicAlbum
  date published: 1999-09-14
album: 100% Bohemio
  type: MusicAlbum
  date published: 2005
album: Se Busca Una Amante
  type: MusicAlbum
  date published: 2021-11-18
album: Amores
  type: MusicAlbum
  date published: 2021-12-17
album: Triste Final
  type: MusicAlbum
  date published: 2021-12-23
album: Deseo
  type: MusicAlbum
  date published: 2022-01-27