Sang Ca
type: MusicGroup
popularity: 2
followers: 54
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x403c67dc28e17030582a89c4d2bff5a97b86bb59b6eccba57c689db1a1ffc776
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dafe5827-b98b-4ca3-83ba-edb14bba9e8e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dafe5827-b98b-4ca3-83ba-edb14bba9e8e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dafe5827-b98b-4ca3-83ba-edb14bba9e8e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x403c67dc28e17030582a89c4d2bff5a97b86bb59b6eccba57c689db1a1ffc776","name":"Sang Ca","registered_at":"2026-06-21T04:48:45Z","symbol":"NIM1820905","token_address":"0x56af9aed0749277299c7ec128cc398c76e398f58","type":"artist","uuid":"dafe5827-b98b-4ca3-83ba-edb14bba9e8e"}
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 0x403c67dc28e17030582a89c4d2bff5a97b86bb59b6eccba57c689db1a1ffc776. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dafe5827-b98b-4ca3-83ba-edb14bba9e8e.json and https://artists.proofprofile.net/proofs/artist/dafe5827-b98b-4ca3-83ba-edb14bba9e8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x403c67dc28e17030582a89c4d2bff5a97b86bb59b6eccba57c689db1a1ffc776","name":"Sang Ca","registered_at":"2026-06-21T04:48:45Z","symbol":"NIM1820905","token_address":"0x56af9aed0749277299c7ec128cc398c76e398f58","type":"artist","uuid":"dafe5827-b98b-4ca3-83ba-edb14bba9e8e"}
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