MC Xaver
type: MusicGroup
popularity: 4
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf15a1e262ae99f5fca6c219f31b37f9f8892072cefb678b7b40bb1365422483a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953857
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953857
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0219c0c8-ace0-4f5a-8b2a-6d7ed2eab477.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0219c0c8-ace0-4f5a-8b2a-6d7ed2eab477.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0219c0c8-ace0-4f5a-8b2a-6d7ed2eab477
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:34:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf15a1e262ae99f5fca6c219f31b37f9f8892072cefb678b7b40bb1365422483a","name":"MC Xaver","registered_at":"2026-06-15T14:27:46Z","symbol":"NIM0736828","token_address":"0x6b7bff60375871f93c1a9e4e8669973fc5246b5e","type":"artist","uuid":"0219c0c8-ace0-4f5a-8b2a-6d7ed2eab477"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15a1e262ae99f5fca6c219f31b37f9f8892072cefb678b7b40bb1365422483a. Chain 2 (Bitcoin): anchored in block 953857 (2026-06-15T23:34:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0219c0c8-ace0-4f5a-8b2a-6d7ed2eab477.json and https://artists.proofprofile.net/proofs/artist/0219c0c8-ace0-4f5a-8b2a-6d7ed2eab477.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T23:34:38Z
  text: {"copyright_id":"0xf15a1e262ae99f5fca6c219f31b37f9f8892072cefb678b7b40bb1365422483a","name":"MC Xaver","registered_at":"2026-06-15T14:27:46Z","symbol":"NIM0736828","token_address":"0x6b7bff60375871f93c1a9e4e8669973fc5246b5e","type":"artist","uuid":"0219c0c8-ace0-4f5a-8b2a-6d7ed2eab477"}