Jefão MC
type: MusicGroup
popularity: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66f68477829d5a13637f69abd7593bbcd1517025ceef02481ca4af2dae7fe189
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3087f947-a352-4960-b33e-0825dc6fc54e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3087f947-a352-4960-b33e-0825dc6fc54e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3087f947-a352-4960-b33e-0825dc6fc54e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x66f68477829d5a13637f69abd7593bbcd1517025ceef02481ca4af2dae7fe189","name":"Jefão MC","registered_at":"2026-06-16T06:31:41Z","symbol":"NIM0966924","token_address":"0xf3015d37e4af63cc9997990f068941557570a62e","type":"artist","uuid":"3087f947-a352-4960-b33e-0825dc6fc54e"}
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 0x66f68477829d5a13637f69abd7593bbcd1517025ceef02481ca4af2dae7fe189. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3087f947-a352-4960-b33e-0825dc6fc54e.json and https://artists.proofprofile.net/proofs/artist/3087f947-a352-4960-b33e-0825dc6fc54e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:04:35Z
  text: {"copyright_id":"0x66f68477829d5a13637f69abd7593bbcd1517025ceef02481ca4af2dae7fe189","name":"Jefão MC","registered_at":"2026-06-16T06:31:41Z","symbol":"NIM0966924","token_address":"0xf3015d37e4af63cc9997990f068941557570a62e","type":"artist","uuid":"3087f947-a352-4960-b33e-0825dc6fc54e"}