Silvestre Fonseca
type: MusicGroup
genre: fado
popularity: 4
followers: 266
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xce26960ad9e2a492dd991a38c6346a1ce6421112d506db1a862bb2f2bde292d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1655d318-4fad-43cc-be2d-b3cf33229f8b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1655d318-4fad-43cc-be2d-b3cf33229f8b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1655d318-4fad-43cc-be2d-b3cf33229f8b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xce26960ad9e2a492dd991a38c6346a1ce6421112d506db1a862bb2f2bde292d6","name":"Silvestre Fonseca","registered_at":"2026-06-15T21:22:16Z","symbol":"NIM0835722","token_address":"0xd411eb3fb160bd048ee80975bfd8fa432e90f6ce","type":"artist","uuid":"1655d318-4fad-43cc-be2d-b3cf33229f8b"}
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 0xce26960ad9e2a492dd991a38c6346a1ce6421112d506db1a862bb2f2bde292d6. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1655d318-4fad-43cc-be2d-b3cf33229f8b.json and https://artists.proofprofile.net/proofs/artist/1655d318-4fad-43cc-be2d-b3cf33229f8b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:39:24Z
  text: {"copyright_id":"0xce26960ad9e2a492dd991a38c6346a1ce6421112d506db1a862bb2f2bde292d6","name":"Silvestre Fonseca","registered_at":"2026-06-15T21:22:16Z","symbol":"NIM0835722","token_address":"0xd411eb3fb160bd048ee80975bfd8fa432e90f6ce","type":"artist","uuid":"1655d318-4fad-43cc-be2d-b3cf33229f8b"}
album: Guitarra Clássica com Orquestra
  type: MusicAlbum
  date published: 1987
album: Guitarra Clássica 1990
  type: MusicAlbum
  date published: 1990
album: Guitarra Clássica
  type: MusicAlbum
  date published: 1999
album: Dedo D' Alma
  type: MusicAlbum
  date published: 2002
album: Música ao Jantar
  type: MusicAlbum
  date published: 2011-11-02
album: Boleros
  type: MusicAlbum
  date published: 2016
album: Memórias
  type: MusicAlbum
  date published: 2016-05-18
album: Dolce Barroco
  type: MusicAlbum
  date published: 2016-05-18
album: Olhares
  type: MusicAlbum
  date published: 2016-05-19
album: Fados e Mornas
  type: MusicAlbum
  date published: 2019-04-12
album: Opiniao
  type: MusicAlbum
  date published: 2024-03-12