José Barros
type: MusicGroup
description: thumb|275px| Cumbia festivities Corporation, José Barros house in El Banco. José Benito Barros or simply José Barros (March 21, 1915 – May 12, 2007) was a Colombian musician and composer. He composed
popularity: 6
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe50343e7a8c3d540e16e1fc407c34119dec69fba492a175d97c53a4763a2f100
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/735241ac-4596-48c0-886d-0d254c2ee7c2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/735241ac-4596-48c0-886d-0d254c2ee7c2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/735241ac-4596-48c0-886d-0d254c2ee7c2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe50343e7a8c3d540e16e1fc407c34119dec69fba492a175d97c53a4763a2f100","name":"José Barros","registered_at":"2026-06-17T05:51:22Z","symbol":"NIM1300911","token_address":"0x127ef21a57cfa2add68a821ea708097ca2bb2054","type":"artist","uuid":"735241ac-4596-48c0-886d-0d254c2ee7c2"}
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 0xe50343e7a8c3d540e16e1fc407c34119dec69fba492a175d97c53a4763a2f100. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/735241ac-4596-48c0-886d-0d254c2ee7c2.json and https://artists.proofprofile.net/proofs/artist/735241ac-4596-48c0-886d-0d254c2ee7c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xe50343e7a8c3d540e16e1fc407c34119dec69fba492a175d97c53a4763a2f100","name":"José Barros","registered_at":"2026-06-17T05:51:22Z","symbol":"NIM1300911","token_address":"0x127ef21a57cfa2add68a821ea708097ca2bb2054","type":"artist","uuid":"735241ac-4596-48c0-886d-0d254c2ee7c2"}