La Case Nègre
type: MusicGroup
popularity: 2
followers: 51
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6eebc2b004ba22aed03f86aaa179b6469ac6b67a8fe288fb6b4df5ead23f8d3a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953962
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953962
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27bf54ea-36fe-4877-a093-2b3d8825c6fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27bf54ea-36fe-4877-a093-2b3d8825c6fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/27bf54ea-36fe-4877-a093-2b3d8825c6fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T15:03:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6eebc2b004ba22aed03f86aaa179b6469ac6b67a8fe288fb6b4df5ead23f8d3a","name":"La Case Nègre","registered_at":"2026-06-16T03:27:28Z","symbol":"NIM0922911","token_address":"0xe8745cdc4bc158a6c8f1e17b22e9edac946860a4","type":"artist","uuid":"27bf54ea-36fe-4877-a093-2b3d8825c6fc"}
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 0x6eebc2b004ba22aed03f86aaa179b6469ac6b67a8fe288fb6b4df5ead23f8d3a. Chain 2 (Bitcoin): anchored in block 953962 (2026-06-16T15:03:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27bf54ea-36fe-4877-a093-2b3d8825c6fc.json and https://artists.proofprofile.net/proofs/artist/27bf54ea-36fe-4877-a093-2b3d8825c6fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T15:03:47Z
  text: {"copyright_id":"0x6eebc2b004ba22aed03f86aaa179b6469ac6b67a8fe288fb6b4df5ead23f8d3a","name":"La Case Nègre","registered_at":"2026-06-16T03:27:28Z","symbol":"NIM0922911","token_address":"0xe8745cdc4bc158a6c8f1e17b22e9edac946860a4","type":"artist","uuid":"27bf54ea-36fe-4877-a093-2b3d8825c6fc"}