Carlos Vivan
type: MusicGroup
genre: tango
popularity: 2
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30c074c287a9fbe7975e73945061bf2a1f929d05a9715d8fe618beee80bcb0ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c647da07-55cf-402c-a10d-29b2fea5c94c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c647da07-55cf-402c-a10d-29b2fea5c94c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c647da07-55cf-402c-a10d-29b2fea5c94c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30c074c287a9fbe7975e73945061bf2a1f929d05a9715d8fe618beee80bcb0ba","name":"Carlos Vivan","registered_at":"2026-06-20T21:16:42Z","symbol":"NIM1717648","token_address":"0x212845813f63fc969964ee80881e20405dab8361","type":"artist","uuid":"c647da07-55cf-402c-a10d-29b2fea5c94c"}
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 0x30c074c287a9fbe7975e73945061bf2a1f929d05a9715d8fe618beee80bcb0ba. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c647da07-55cf-402c-a10d-29b2fea5c94c.json and https://artists.proofprofile.net/proofs/artist/c647da07-55cf-402c-a10d-29b2fea5c94c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x30c074c287a9fbe7975e73945061bf2a1f929d05a9715d8fe618beee80bcb0ba","name":"Carlos Vivan","registered_at":"2026-06-20T21:16:42Z","symbol":"NIM1717648","token_address":"0x212845813f63fc969964ee80881e20405dab8361","type":"artist","uuid":"c647da07-55cf-402c-a10d-29b2fea5c94c"}