Cynthia & Johnny O.
type: MusicGroup
genre: chicago house
genre: freestyle
popularity: 20
followers: 640
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xed28d9d722d23a24996d309cde22ad2cebaccd063eb9d9000dda0aa22b8f3731
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953641
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953641
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3be9104f-0d1c-4f58-9660-675c55adc0e8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3be9104f-0d1c-4f58-9660-675c55adc0e8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3be9104f-0d1c-4f58-9660-675c55adc0e8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:54:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xed28d9d722d23a24996d309cde22ad2cebaccd063eb9d9000dda0aa22b8f3731","name":"Cynthia & Johnny O.","registered_at":"2026-06-14T10:50:11Z","symbol":"NIM0429586","token_address":"0x8e9351c39bb33e3f7b5fedc6d851a39c4a008e6a","type":"artist","uuid":"3be9104f-0d1c-4f58-9660-675c55adc0e8"}
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 0xed28d9d722d23a24996d309cde22ad2cebaccd063eb9d9000dda0aa22b8f3731. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3be9104f-0d1c-4f58-9660-675c55adc0e8.json and https://artists.proofprofile.net/proofs/artist/3be9104f-0d1c-4f58-9660-675c55adc0e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T13:54:28Z
  text: {"copyright_id":"0xed28d9d722d23a24996d309cde22ad2cebaccd063eb9d9000dda0aa22b8f3731","name":"Cynthia & Johnny O.","registered_at":"2026-06-14T10:50:11Z","symbol":"NIM0429586","token_address":"0x8e9351c39bb33e3f7b5fedc6d851a39c4a008e6a","type":"artist","uuid":"3be9104f-0d1c-4f58-9660-675c55adc0e8"}
album: Dreamboy/Dreamgirl
  type: MusicAlbum
  date published: 2012-03-13