Marcelino Guerra
type: MusicGroup
genre: son cubano
description: Marcelino Guerra (26 April 1914 – 30 June 1996), nicknamed "Rapindey", was a Cuban singer, songwriter and guitarist.[ Marcelino Guerra] at Allmusic He spent much of his life in the United States and
popularity: 9
followers: 315
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9774ca4caaf26b23f98dbca97219a1a29682842b483cd35342eea799888437e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be778ea5-a80c-4bd0-ae88-d5139a1870be.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be778ea5-a80c-4bd0-ae88-d5139a1870be.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/be778ea5-a80c-4bd0-ae88-d5139a1870be
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe9774ca4caaf26b23f98dbca97219a1a29682842b483cd35342eea799888437e","name":"Marcelino Guerra","registered_at":"2026-06-20T18:21:25Z","symbol":"NIM1676906","token_address":"0x89821184858e3ef217ad6ec7b56ed005bc4fd7e4","type":"artist","uuid":"be778ea5-a80c-4bd0-ae88-d5139a1870be"}
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 0xe9774ca4caaf26b23f98dbca97219a1a29682842b483cd35342eea799888437e. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be778ea5-a80c-4bd0-ae88-d5139a1870be.json and https://artists.proofprofile.net/proofs/artist/be778ea5-a80c-4bd0-ae88-d5139a1870be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0xe9774ca4caaf26b23f98dbca97219a1a29682842b483cd35342eea799888437e","name":"Marcelino Guerra","registered_at":"2026-06-20T18:21:25Z","symbol":"NIM1676906","token_address":"0x89821184858e3ef217ad6ec7b56ed005bc4fd7e4","type":"artist","uuid":"be778ea5-a80c-4bd0-ae88-d5139a1870be"}
album: Rapindey
  type: MusicAlbum
  date published: 1995-01-01
album: Rapindey
  type: MusicAlbum
  date published: 1995-01-01
album: Cuban Classics II
  type: MusicAlbum
  date published: 2010-02-09