MC Cali
type: MusicGroup
popularity: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ffd6636a2533930bf3d65a78fb73fc194eb82d6a36cca9bd586dd698fa38462
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953958
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953958
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/26647b24-763e-4900-8b71-d7716601449f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/26647b24-763e-4900-8b71-d7716601449f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/26647b24-763e-4900-8b71-d7716601449f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:52:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0ffd6636a2533930bf3d65a78fb73fc194eb82d6a36cca9bd586dd698fa38462","name":"MC Cali","registered_at":"2026-06-16T03:11:59Z","symbol":"NIM0919227","token_address":"0xd87e3e1590a9d060f09d76d9a92be033af077cb6","type":"artist","uuid":"26647b24-763e-4900-8b71-d7716601449f"}
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 0x0ffd6636a2533930bf3d65a78fb73fc194eb82d6a36cca9bd586dd698fa38462. Chain 2 (Bitcoin): anchored in block 953958 (2026-06-16T14:52:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26647b24-763e-4900-8b71-d7716601449f.json and https://artists.proofprofile.net/proofs/artist/26647b24-763e-4900-8b71-d7716601449f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:52:44Z
  text: {"copyright_id":"0x0ffd6636a2533930bf3d65a78fb73fc194eb82d6a36cca9bd586dd698fa38462","name":"MC Cali","registered_at":"2026-06-16T03:11:59Z","symbol":"NIM0919227","token_address":"0xd87e3e1590a9d060f09d76d9a92be033af077cb6","type":"artist","uuid":"26647b24-763e-4900-8b71-d7716601449f"}