Quattro
type: MusicGroup
genre: happy hardcore
popularity: 21
followers: 142
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8636cc657cab6a5139b10aa52e355416f8b8fafebda45d88003a0119d84466b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9df78dcd-96f9-4c84-87ce-88da4926bace.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9df78dcd-96f9-4c84-87ce-88da4926bace.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9df78dcd-96f9-4c84-87ce-88da4926bace
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 0x8636cc657cab6a5139b10aa52e355416f8b8fafebda45d88003a0119d84466b9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9df78dcd-96f9-4c84-87ce-88da4926bace.json and https://artists.proofprofile.net/proofs/artist/9df78dcd-96f9-4c84-87ce-88da4926bace.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: Your Love
  type: MusicAlbum
  date published: 2018-04-21
album: Samurai
  type: MusicAlbum
  date published: 2019-04-15
album: Say My Name
  type: MusicAlbum
  date published: 2020-01-17
album: Know Whats Gucci
  type: MusicAlbum
  date published: 2020-01-31
album: Italy
  type: MusicAlbum
  date published: 2020-03-06
album: Indian Fire
  type: MusicAlbum
  date published: 2020-05-29
album: Wonderful Life
  type: MusicAlbum
  date published: 2021-01-23
album: Wonderful Life
  type: MusicAlbum
  date published: 2021-04-16
album: Love Message
  type: MusicAlbum
  date published: 2021-07-30
album: Be With You
  type: MusicAlbum
  date published: 2021-08-31
album: Ameno
  type: MusicAlbum
  date published: 2021-12-03
album: Let You Go
  type: MusicAlbum
  date published: 2022-02-11
album: The Hook
  type: MusicAlbum
  date published: 2023-04-05
album: Fallin
  type: MusicAlbum
  date published: 2023-12-30
album: Cherry
  type: MusicAlbum
  date published: 2024-05-25