Carmen Cheung
type: MusicGroup
popularity: 12
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa261a5b308d6947b47d08d5360b2a4f3e05ccf78416c3f7bb2850a5bfb8ce0f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953654
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953654
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48478f74-e3a2-4d3f-9319-2c39103bf6d2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48478f74-e3a2-4d3f-9319-2c39103bf6d2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/48478f74-e3a2-4d3f-9319-2c39103bf6d2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:26:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfa261a5b308d6947b47d08d5360b2a4f3e05ccf78416c3f7bb2850a5bfb8ce0f","name":"Carmen Cheung","registered_at":"2026-06-14T12:03:48Z","symbol":"NIM0447138","token_address":"0x2320e13c6d8151ba61fd97aaefb831da4ad8539e","type":"artist","uuid":"48478f74-e3a2-4d3f-9319-2c39103bf6d2"}
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 0xfa261a5b308d6947b47d08d5360b2a4f3e05ccf78416c3f7bb2850a5bfb8ce0f. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48478f74-e3a2-4d3f-9319-2c39103bf6d2.json and https://artists.proofprofile.net/proofs/artist/48478f74-e3a2-4d3f-9319-2c39103bf6d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:26:51Z
  text: {"copyright_id":"0xfa261a5b308d6947b47d08d5360b2a4f3e05ccf78416c3f7bb2850a5bfb8ce0f","name":"Carmen Cheung","registered_at":"2026-06-14T12:03:48Z","symbol":"NIM0447138","token_address":"0x2320e13c6d8151ba61fd97aaefb831da4ad8539e","type":"artist","uuid":"48478f74-e3a2-4d3f-9319-2c39103bf6d2"}