Hồng Hải Singer
type: MusicGroup
popularity: 14
followers: 42
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee52272637d5ad07b8b47c1dff16d895f8555f22c2f3cc27d1a08e60f5a45f11
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/49524d11-f5bd-4194-9e7d-188b1c77c474.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/49524d11-f5bd-4194-9e7d-188b1c77c474.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/49524d11-f5bd-4194-9e7d-188b1c77c474
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:26:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee52272637d5ad07b8b47c1dff16d895f8555f22c2f3cc27d1a08e60f5a45f11","name":"Hồng Hải Singer","registered_at":"2026-06-14T12:10:57Z","symbol":"NIM0448843","token_address":"0x01acb93610e286c366a2280e1f91f5e14055af5d","type":"artist","uuid":"49524d11-f5bd-4194-9e7d-188b1c77c474"}
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 0xee52272637d5ad07b8b47c1dff16d895f8555f22c2f3cc27d1a08e60f5a45f11. 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/49524d11-f5bd-4194-9e7d-188b1c77c474.json and https://artists.proofprofile.net/proofs/artist/49524d11-f5bd-4194-9e7d-188b1c77c474.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:26:51Z
  text: {"copyright_id":"0xee52272637d5ad07b8b47c1dff16d895f8555f22c2f3cc27d1a08e60f5a45f11","name":"Hồng Hải Singer","registered_at":"2026-06-14T12:10:57Z","symbol":"NIM0448843","token_address":"0x01acb93610e286c366a2280e1f91f5e14055af5d","type":"artist","uuid":"49524d11-f5bd-4194-9e7d-188b1c77c474"}