Matias Barra Box
type: MusicGroup
genre: cumbia
popularity: 3
followers: 185
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x203f28fd1a5af720a6d7f1654c97f1c5683435aba8057f17bdee26a0445bf7fd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5da9cd7-25c2-4348-9a1a-8ef339386bfa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5da9cd7-25c2-4348-9a1a-8ef339386bfa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e5da9cd7-25c2-4348-9a1a-8ef339386bfa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x203f28fd1a5af720a6d7f1654c97f1c5683435aba8057f17bdee26a0445bf7fd","name":"Matias Barra Box","registered_at":"2026-06-21T08:17:52Z","symbol":"NIM1872751","token_address":"0x7ad2f7524dbf1f527f0b613d238f43b547e5c49d","type":"artist","uuid":"e5da9cd7-25c2-4348-9a1a-8ef339386bfa"}
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 0x203f28fd1a5af720a6d7f1654c97f1c5683435aba8057f17bdee26a0445bf7fd. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5da9cd7-25c2-4348-9a1a-8ef339386bfa.json and https://artists.proofprofile.net/proofs/artist/e5da9cd7-25c2-4348-9a1a-8ef339386bfa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x203f28fd1a5af720a6d7f1654c97f1c5683435aba8057f17bdee26a0445bf7fd","name":"Matias Barra Box","registered_at":"2026-06-21T08:17:52Z","symbol":"NIM1872751","token_address":"0x7ad2f7524dbf1f527f0b613d238f43b547e5c49d","type":"artist","uuid":"e5da9cd7-25c2-4348-9a1a-8ef339386bfa"}
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  date published: 2012-03-15
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