Benjamin Holzapfel
type: MusicGroup
popularity: 15
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9adef7195277337083508e7cfaec46cc6362c0401a655e28182c85acd58b435e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953596
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953596
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/08929734-b498-43d4-beee-59ad0061c43a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/08929734-b498-43d4-beee-59ad0061c43a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/08929734-b498-43d4-beee-59ad0061c43a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T06:21:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9adef7195277337083508e7cfaec46cc6362c0401a655e28182c85acd58b435e","name":"Benjamin Holzapfel","registered_at":"2026-06-14T05:22:30Z","symbol":"NIM0351445","token_address":"0x9a66c6029eedbbcc709d78111b2779605a753d11","type":"artist","uuid":"08929734-b498-43d4-beee-59ad0061c43a"}
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 0x9adef7195277337083508e7cfaec46cc6362c0401a655e28182c85acd58b435e. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08929734-b498-43d4-beee-59ad0061c43a.json and https://artists.proofprofile.net/proofs/artist/08929734-b498-43d4-beee-59ad0061c43a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T06:21:39Z
  text: {"copyright_id":"0x9adef7195277337083508e7cfaec46cc6362c0401a655e28182c85acd58b435e","name":"Benjamin Holzapfel","registered_at":"2026-06-14T05:22:30Z","symbol":"NIM0351445","token_address":"0x9a66c6029eedbbcc709d78111b2779605a753d11","type":"artist","uuid":"08929734-b498-43d4-beee-59ad0061c43a"}