Cardiac Rock
type: MusicGroup
popularity: 3
followers: 928
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xad8cecde444d6e46e7dfdf820a57c0364c7df12c2aea71e5660d9d4ef28d220e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953933
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953933
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/202c7855-d8cc-48cb-b43c-650edba95836.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/202c7855-d8cc-48cb-b43c-650edba95836.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/202c7855-d8cc-48cb-b43c-650edba95836
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:13:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xad8cecde444d6e46e7dfdf820a57c0364c7df12c2aea71e5660d9d4ef28d220e","name":"Cardiac Rock","registered_at":"2026-06-16T00:44:06Z","symbol":"NIM0883895","token_address":"0xb045be86e08c63dda285968be9589fa91cfa01e4","type":"artist","uuid":"202c7855-d8cc-48cb-b43c-650edba95836"}
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 0xad8cecde444d6e46e7dfdf820a57c0364c7df12c2aea71e5660d9d4ef28d220e. Chain 2 (Bitcoin): anchored in block 953933 (2026-06-16T11:13:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/202c7855-d8cc-48cb-b43c-650edba95836.json and https://artists.proofprofile.net/proofs/artist/202c7855-d8cc-48cb-b43c-650edba95836.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:13:24Z
  text: {"copyright_id":"0xad8cecde444d6e46e7dfdf820a57c0364c7df12c2aea71e5660d9d4ef28d220e","name":"Cardiac Rock","registered_at":"2026-06-16T00:44:06Z","symbol":"NIM0883895","token_address":"0xb045be86e08c63dda285968be9589fa91cfa01e4","type":"artist","uuid":"202c7855-d8cc-48cb-b43c-650edba95836"}
album: A Vida é um Sopro
  type: MusicAlbum
  date published: 2017-04-07
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  type: MusicAlbum
  date published: 2017-04-07
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  type: MusicAlbum
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  type: MusicAlbum
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