Eva Valle
type: MusicGroup
popularity: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87f52c2ed7579f3b949bd2ba01d493cea3265831cdd7117f8b9e09de4bb333db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953972
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953972
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a81132e-a201-4989-b5d6-5607a505cf09.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a81132e-a201-4989-b5d6-5607a505cf09.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2a81132e-a201-4989-b5d6-5607a505cf09
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:31:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87f52c2ed7579f3b949bd2ba01d493cea3265831cdd7117f8b9e09de4bb333db","name":"Eva Valle","registered_at":"2026-06-16T04:18:51Z","symbol":"NIM0935190","token_address":"0x072233730b686d8f1e1e37c8cee5837233ca11cf","type":"artist","uuid":"2a81132e-a201-4989-b5d6-5607a505cf09"}
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 0x87f52c2ed7579f3b949bd2ba01d493cea3265831cdd7117f8b9e09de4bb333db. Chain 2 (Bitcoin): anchored in block 953973 (2026-06-16T16:37:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a81132e-a201-4989-b5d6-5607a505cf09.json and https://artists.proofprofile.net/proofs/artist/2a81132e-a201-4989-b5d6-5607a505cf09.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:37:07Z
  text: {"copyright_id":"0x87f52c2ed7579f3b949bd2ba01d493cea3265831cdd7117f8b9e09de4bb333db","name":"Eva Valle","registered_at":"2026-06-16T04:18:51Z","symbol":"NIM0935190","token_address":"0x072233730b686d8f1e1e37c8cee5837233ca11cf","type":"artist","uuid":"2a81132e-a201-4989-b5d6-5607a505cf09"}