Angel Vargas - Roberto de ...
type: MusicGroup
genre: tango
popularity: 2
followers: 478
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72a3a5ac00a9223e8813b7177422e480c8cbe1b06a0f1ff28c5c111eff92a3dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44097f99-c6b0-43eb-ab8e-392cf25ee92f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44097f99-c6b0-43eb-ab8e-392cf25ee92f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/44097f99-c6b0-43eb-ab8e-392cf25ee92f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x72a3a5ac00a9223e8813b7177422e480c8cbe1b06a0f1ff28c5c111eff92a3dd","name":"Angel Vargas - Roberto de ...","registered_at":"2026-06-16T13:23:14Z","symbol":"NIM1065125","token_address":"0x6b7ff484b524990a7ac21c3c9b49e070673846ae","type":"artist","uuid":"44097f99-c6b0-43eb-ab8e-392cf25ee92f"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a3a5ac00a9223e8813b7177422e480c8cbe1b06a0f1ff28c5c111eff92a3dd. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44097f99-c6b0-43eb-ab8e-392cf25ee92f.json and https://artists.proofprofile.net/proofs/artist/44097f99-c6b0-43eb-ab8e-392cf25ee92f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T05:51:24Z
  text: {"copyright_id":"0x72a3a5ac00a9223e8813b7177422e480c8cbe1b06a0f1ff28c5c111eff92a3dd","name":"Angel Vargas - Roberto de ...","registered_at":"2026-06-16T13:23:14Z","symbol":"NIM1065125","token_address":"0x6b7ff484b524990a7ac21c3c9b49e070673846ae","type":"artist","uuid":"44097f99-c6b0-43eb-ab8e-392cf25ee92f"}