Silvio Rodríguez
type: MusicGroup
description: Silvio Rodríguez Domínguez (born 29 November 1946) is a Cuban musician, and leader of the Nueva Trova movement. He is widely considered as Cuba's best folk singer and arguably one of Latin America's
popularity: 25
followers: 142
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcfff305da00385d6ce29b1e033400b6de36136354e94ce04efe70b50c5f6046f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1177e4b6-0877-4177-b8d8-bcc9cb78c5f6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1177e4b6-0877-4177-b8d8-bcc9cb78c5f6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1177e4b6-0877-4177-b8d8-bcc9cb78c5f6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcfff305da00385d6ce29b1e033400b6de36136354e94ce04efe70b50c5f6046f","name":"Silvio Rodríguez","registered_at":"2026-06-11T12:08:11Z","symbol":"NIM0023540","token_address":"0x4a2cf57f71120c5f95d8f4cece0a409f1e2f7163","type":"artist","uuid":"1177e4b6-0877-4177-b8d8-bcc9cb78c5f6"}
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 0xcfff305da00385d6ce29b1e033400b6de36136354e94ce04efe70b50c5f6046f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1177e4b6-0877-4177-b8d8-bcc9cb78c5f6.json and https://artists.proofprofile.net/proofs/artist/1177e4b6-0877-4177-b8d8-bcc9cb78c5f6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xcfff305da00385d6ce29b1e033400b6de36136354e94ce04efe70b50c5f6046f","name":"Silvio Rodríguez","registered_at":"2026-06-11T12:08:11Z","symbol":"NIM0023540","token_address":"0x4a2cf57f71120c5f95d8f4cece0a409f1e2f7163","type":"artist","uuid":"1177e4b6-0877-4177-b8d8-bcc9cb78c5f6"}