Campa HRec
type: MusicGroup
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d5bb14b4970e43b3bb8c3c35c9b46b400cf5aa7bb119bd1d354474c09ef8eda
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954072
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954072
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a81db46-2ee0-47bc-8757-9625c1704001.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a81db46-2ee0-47bc-8757-9625c1704001.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a81db46-2ee0-47bc-8757-9625c1704001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:43:15Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3d5bb14b4970e43b3bb8c3c35c9b46b400cf5aa7bb119bd1d354474c09ef8eda","name":"Campa HRec","registered_at":"2026-06-17T08:22:01Z","symbol":"NIM1336819","token_address":"0xb2587431591889b1c830c588344d8601131284df","type":"artist","uuid":"7a81db46-2ee0-47bc-8757-9625c1704001"}
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 0x3d5bb14b4970e43b3bb8c3c35c9b46b400cf5aa7bb119bd1d354474c09ef8eda. Chain 2 (Bitcoin): anchored in block 954072 (2026-06-17T08:43:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a81db46-2ee0-47bc-8757-9625c1704001.json and https://artists.proofprofile.net/proofs/artist/7a81db46-2ee0-47bc-8757-9625c1704001.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:43:15Z
  text: {"copyright_id":"0x3d5bb14b4970e43b3bb8c3c35c9b46b400cf5aa7bb119bd1d354474c09ef8eda","name":"Campa HRec","registered_at":"2026-06-17T08:22:01Z","symbol":"NIM1336819","token_address":"0xb2587431591889b1c830c588344d8601131284df","type":"artist","uuid":"7a81db46-2ee0-47bc-8757-9625c1704001"}