Cardo-Roxo
type: MusicGroup
genre: fado
popularity: 2
followers: 647
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97d50b23455ce5ec5b7eff345e30d068b9d6d6604c4983668791cdc38aea5dee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b97b7c7b-797a-4d67-b5b9-5993eb234a8a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b97b7c7b-797a-4d67-b5b9-5993eb234a8a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b97b7c7b-797a-4d67-b5b9-5993eb234a8a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
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 0x97d50b23455ce5ec5b7eff345e30d068b9d6d6604c4983668791cdc38aea5dee. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b97b7c7b-797a-4d67-b5b9-5993eb234a8a.json and https://artists.proofprofile.net/proofs/artist/b97b7c7b-797a-4d67-b5b9-5993eb234a8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
album: Alvorada
  type: MusicAlbum
  date published: 2016-03-20
album: Alvorada
  type: MusicAlbum
  date published: 2016-03-20
album: Vai-te Cuca
  type: MusicAlbum
  date published: 2016-05-01
album: Vai-te Cuca
  type: MusicAlbum
  date published: 2016-05-01
album: Volto Já
  type: MusicAlbum
  date published: 2017-10-28
album: No Monte das Oliveiras
  type: MusicAlbum
  date published: 2019-11-23
album: Bravio
  type: MusicAlbum
  date published: 2022-07-20
album: Além do Rio
  type: MusicAlbum
  date published: 2024-11-30