Masters Of Cantonese Music
type: MusicGroup
genre: traditional music
popularity: 7
followers: 642
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc50b967c6ca326d08afe54da8d99e0cc4fd40e16f02b63f064520358966d5def
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9559cde5-ee2e-4c60-beb8-a9bc1114c86c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9559cde5-ee2e-4c60-beb8-a9bc1114c86c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9559cde5-ee2e-4c60-beb8-a9bc1114c86c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc50b967c6ca326d08afe54da8d99e0cc4fd40e16f02b63f064520358966d5def","name":"Masters Of Cantonese Music","registered_at":"2026-06-17T17:49:27Z","symbol":"NIM1472125","token_address":"0x5b41f5a7bdba6f0747eb3d215527627795b909bc","type":"artist","uuid":"9559cde5-ee2e-4c60-beb8-a9bc1114c86c"}
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 0xc50b967c6ca326d08afe54da8d99e0cc4fd40e16f02b63f064520358966d5def. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9559cde5-ee2e-4c60-beb8-a9bc1114c86c.json and https://artists.proofprofile.net/proofs/artist/9559cde5-ee2e-4c60-beb8-a9bc1114c86c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xc50b967c6ca326d08afe54da8d99e0cc4fd40e16f02b63f064520358966d5def","name":"Masters Of Cantonese Music","registered_at":"2026-06-17T17:49:27Z","symbol":"NIM1472125","token_address":"0x5b41f5a7bdba6f0747eb3d215527627795b909bc","type":"artist","uuid":"9559cde5-ee2e-4c60-beb8-a9bc1114c86c"}