Cynthia Sear
type: MusicGroup
genre: choral
popularity: 2
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x823865a18c987017c5482e12178689853e369c71fff11f68c6596cd3e67b3b41
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c126fd26-5286-480c-b52d-88e1c73a648f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c126fd26-5286-480c-b52d-88e1c73a648f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c126fd26-5286-480c-b52d-88e1c73a648f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x823865a18c987017c5482e12178689853e369c71fff11f68c6596cd3e67b3b41","name":"Cynthia Sear","registered_at":"2026-06-20T19:22:42Z","symbol":"NIM1691683","token_address":"0x74189ccc9adf400a08f83a3e66e0912d02a1de3e","type":"artist","uuid":"c126fd26-5286-480c-b52d-88e1c73a648f"}
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 0x823865a18c987017c5482e12178689853e369c71fff11f68c6596cd3e67b3b41. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c126fd26-5286-480c-b52d-88e1c73a648f.json and https://artists.proofprofile.net/proofs/artist/c126fd26-5286-480c-b52d-88e1c73a648f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x823865a18c987017c5482e12178689853e369c71fff11f68c6596cd3e67b3b41","name":"Cynthia Sear","registered_at":"2026-06-20T19:22:42Z","symbol":"NIM1691683","token_address":"0x74189ccc9adf400a08f83a3e66e0912d02a1de3e","type":"artist","uuid":"c126fd26-5286-480c-b52d-88e1c73a648f"}