Los 4 Grandes Maestros
type: MusicGroup
genre: popular colombian music
genre: tropical music
popularity: 5
followers: 1030
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66156203ca6cdaaf19593e83b84c6ebb8579ccf7ffdd7211e11ecc48e39e4032
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b03b59cb-cd7c-4879-8f8c-884be0b8e88c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b03b59cb-cd7c-4879-8f8c-884be0b8e88c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b03b59cb-cd7c-4879-8f8c-884be0b8e88c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x66156203ca6cdaaf19593e83b84c6ebb8579ccf7ffdd7211e11ecc48e39e4032","name":"Los 4 Grandes Maestros","registered_at":"2026-06-20T11:29:44Z","symbol":"NIM1605215","token_address":"0x30c22870df2298408b6c47f0e92e325508ac584a","type":"artist","uuid":"b03b59cb-cd7c-4879-8f8c-884be0b8e88c"}
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 0x66156203ca6cdaaf19593e83b84c6ebb8579ccf7ffdd7211e11ecc48e39e4032. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b03b59cb-cd7c-4879-8f8c-884be0b8e88c.json and https://artists.proofprofile.net/proofs/artist/b03b59cb-cd7c-4879-8f8c-884be0b8e88c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0x66156203ca6cdaaf19593e83b84c6ebb8579ccf7ffdd7211e11ecc48e39e4032","name":"Los 4 Grandes Maestros","registered_at":"2026-06-20T11:29:44Z","symbol":"NIM1605215","token_address":"0x30c22870df2298408b6c47f0e92e325508ac584a","type":"artist","uuid":"b03b59cb-cd7c-4879-8f8c-884be0b8e88c"}