Queen Cath
type: MusicGroup
popularity: 3
followers: 8
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2387ed1dc50fa223e7bba99c4b226c99fe84a24895e0cc34bf75cc70f6469cc5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954046
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954046
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/410444a4-1359-4f53-9076-25efa0e199a5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/410444a4-1359-4f53-9076-25efa0e199a5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/410444a4-1359-4f53-9076-25efa0e199a5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:53:03Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2387ed1dc50fa223e7bba99c4b226c99fe84a24895e0cc34bf75cc70f6469cc5","name":"Queen Cath","registered_at":"2026-06-16T12:12:08Z","symbol":"NIM1048174","token_address":"0xa7802d72ee2956f6237ccb2bd1fd1f4f6e4558b9","type":"artist","uuid":"410444a4-1359-4f53-9076-25efa0e199a5"}
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 0x2387ed1dc50fa223e7bba99c4b226c99fe84a24895e0cc34bf75cc70f6469cc5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/410444a4-1359-4f53-9076-25efa0e199a5.json and https://artists.proofprofile.net/proofs/artist/410444a4-1359-4f53-9076-25efa0e199a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2387ed1dc50fa223e7bba99c4b226c99fe84a24895e0cc34bf75cc70f6469cc5","name":"Queen Cath","registered_at":"2026-06-16T12:12:08Z","symbol":"NIM1048174","token_address":"0xa7802d72ee2956f6237ccb2bd1fd1f4f6e4558b9","type":"artist","uuid":"410444a4-1359-4f53-9076-25efa0e199a5"}
album: B69 Never Dies
  type: MusicAlbum
  date published: 2025-04-07
album: B69 Never Dies Pt II
  type: MusicAlbum
  date published: 2025-04-28
album: B69 Never Dies Pt. III
  type: MusicAlbum
  date published: 2025-05-09
album: B69 & Friends
  type: MusicAlbum
  date published: 2025-05-29