Cambridge University Music Society
type: MusicGroup
genre: choral
popularity: 6
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf8757e6ca939cc5610b10dd6b5c421b8ad5323460ba0ffcbf133acfedd0823b5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953932
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953932
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f216759-f6c8-488e-b300-6f2aade33310.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f216759-f6c8-488e-b300-6f2aade33310.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1f216759-f6c8-488e-b300-6f2aade33310
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf8757e6ca939cc5610b10dd6b5c421b8ad5323460ba0ffcbf133acfedd0823b5","name":"Cambridge University Music Society","registered_at":"2026-06-16T00:22:50Z","symbol":"NIM0878819","token_address":"0x41ef6595191e8ebc3f80450148d7938cc8a16e28","type":"artist","uuid":"1f216759-f6c8-488e-b300-6f2aade33310"}
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 0xf8757e6ca939cc5610b10dd6b5c421b8ad5323460ba0ffcbf133acfedd0823b5. Chain 2 (Bitcoin): anchored in block 953932 (2026-06-16T11:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f216759-f6c8-488e-b300-6f2aade33310.json and https://artists.proofprofile.net/proofs/artist/1f216759-f6c8-488e-b300-6f2aade33310.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:10:43Z
  text: {"copyright_id":"0xf8757e6ca939cc5610b10dd6b5c421b8ad5323460ba0ffcbf133acfedd0823b5","name":"Cambridge University Music Society","registered_at":"2026-06-16T00:22:50Z","symbol":"NIM0878819","token_address":"0x41ef6595191e8ebc3f80450148d7938cc8a16e28","type":"artist","uuid":"1f216759-f6c8-488e-b300-6f2aade33310"}