MC Jhowzinho e MC Kadinho
type: MusicGroup
popularity: 13
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x19bfea5fab46ee131c6d170e1b88dd247bbc80035abbda1dbb39c145873eb6f5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953616
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953616
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a8b345c-757e-44e3-96d8-a58140d5c403.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a8b345c-757e-44e3-96d8-a58140d5c403.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1a8b345c-757e-44e3-96d8-a58140d5c403
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:58:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x19bfea5fab46ee131c6d170e1b88dd247bbc80035abbda1dbb39c145873eb6f5","name":"MC Jhowzinho e MC Kadinho","registered_at":"2026-06-14T07:10:44Z","symbol":"NIM0377230","token_address":"0x2bd0d0c1912a30eb0b6c5f15f47e2ae93cca9f71","type":"artist","uuid":"1a8b345c-757e-44e3-96d8-a58140d5c403"}
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 0x19bfea5fab46ee131c6d170e1b88dd247bbc80035abbda1dbb39c145873eb6f5. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a8b345c-757e-44e3-96d8-a58140d5c403.json and https://artists.proofprofile.net/proofs/artist/1a8b345c-757e-44e3-96d8-a58140d5c403.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:00:45Z
  text: {"copyright_id":"0x19bfea5fab46ee131c6d170e1b88dd247bbc80035abbda1dbb39c145873eb6f5","name":"MC Jhowzinho e MC Kadinho","registered_at":"2026-06-14T07:10:44Z","symbol":"NIM0377230","token_address":"0x2bd0d0c1912a30eb0b6c5f15f47e2ae93cca9f71","type":"artist","uuid":"1a8b345c-757e-44e3-96d8-a58140d5c403"}