Callvin
type: MusicGroup
genre: uk garage
popularity: 2
followers: 108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6cb1e8c534028ae391b8543bf6f5476112b659ed8d0a87be8b93b8419235bd4e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef14e3c2-2dba-40d7-86b5-851ab65fba76.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef14e3c2-2dba-40d7-86b5-851ab65fba76.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ef14e3c2-2dba-40d7-86b5-851ab65fba76
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
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 0x6cb1e8c534028ae391b8543bf6f5476112b659ed8d0a87be8b93b8419235bd4e. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef14e3c2-2dba-40d7-86b5-851ab65fba76.json and https://artists.proofprofile.net/proofs/artist/ef14e3c2-2dba-40d7-86b5-851ab65fba76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
album: One
  type: MusicAlbum
  date published: 2017-09-29
album: Connect Yourself
  type: MusicAlbum
  date published: 2017-10-09
album: Mayhem
  type: MusicAlbum
  date published: 2018-02-02
album: Party With Me
  type: MusicAlbum
  date published: 2018-04-13
album: I Can Feel It
  type: MusicAlbum
  date published: 2018-07-06
album: The Heat
  type: MusicAlbum
  date published: 2018-08-17
album: Take This Out
  type: MusicAlbum
  date published: 2018-09-07
album: Groove It
  type: MusicAlbum
  date published: 2020-11-19
album: That Rhythm
  type: MusicAlbum
  date published: 2021-06-04
album: That Rhythm
  type: MusicAlbum
  date published: 2021-06-18
album: House is Around
  type: MusicAlbum
  date published: 2023-04-14