Laura Rosguer
type: MusicGroup
popularity: 2
followers: 40
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c2b04c1117bdadaa5d0a423d98550283af391a395aebf2a73797510e95c2dc6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/112c0848-4a3b-472e-9897-0c33834080d7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/112c0848-4a3b-472e-9897-0c33834080d7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/112c0848-4a3b-472e-9897-0c33834080d7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4c2b04c1117bdadaa5d0a423d98550283af391a395aebf2a73797510e95c2dc6","name":"Laura Rosguer","registered_at":"2026-06-15T19:46:05Z","symbol":"NIM0812814","token_address":"0xf050de1f78c874bb08ce958e7b1942b7adfad0bb","type":"artist","uuid":"112c0848-4a3b-472e-9897-0c33834080d7"}
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 0x4c2b04c1117bdadaa5d0a423d98550283af391a395aebf2a73797510e95c2dc6. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/112c0848-4a3b-472e-9897-0c33834080d7.json and https://artists.proofprofile.net/proofs/artist/112c0848-4a3b-472e-9897-0c33834080d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0x4c2b04c1117bdadaa5d0a423d98550283af391a395aebf2a73797510e95c2dc6","name":"Laura Rosguer","registered_at":"2026-06-15T19:46:05Z","symbol":"NIM0812814","token_address":"0xf050de1f78c874bb08ce958e7b1942b7adfad0bb","type":"artist","uuid":"112c0848-4a3b-472e-9897-0c33834080d7"}