Duo Ifé
type: MusicGroup
popularity: 2
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd80afdfbea51ed699c35be8cb4e0437c5a4be28b1e18b2eeba45651a6347528
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d301e8b9-983a-404e-9cde-05806a66ac96.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d301e8b9-983a-404e-9cde-05806a66ac96.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d301e8b9-983a-404e-9cde-05806a66ac96
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfd80afdfbea51ed699c35be8cb4e0437c5a4be28b1e18b2eeba45651a6347528","name":"Duo Ifé","registered_at":"2026-06-21T01:57:41Z","symbol":"NIM1780839","token_address":"0xe62d4f36d9457a2c0c8081fcc703e330bd99bec8","type":"artist","uuid":"d301e8b9-983a-404e-9cde-05806a66ac96"}
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 0xfd80afdfbea51ed699c35be8cb4e0437c5a4be28b1e18b2eeba45651a6347528. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d301e8b9-983a-404e-9cde-05806a66ac96.json and https://artists.proofprofile.net/proofs/artist/d301e8b9-983a-404e-9cde-05806a66ac96.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0xfd80afdfbea51ed699c35be8cb4e0437c5a4be28b1e18b2eeba45651a6347528","name":"Duo Ifé","registered_at":"2026-06-21T01:57:41Z","symbol":"NIM1780839","token_address":"0xe62d4f36d9457a2c0c8081fcc703e330bd99bec8","type":"artist","uuid":"d301e8b9-983a-404e-9cde-05806a66ac96"}
album: Nossos Lençóis (Jeitinho)
  type: MusicAlbum
  date published: 2024-03-29
album: Magia Negra
  type: MusicAlbum
  date published: 2024-07-31
album: Sonho Ancestral
  type: MusicAlbum
  date published: 2024-08-30
album: MINHA GANG
  type: MusicAlbum
  date published: 2024-09-27
album: Terra Negra
  type: MusicAlbum
  date published: 2024-11-21