Placido Acevedo
type: MusicGroup
genre: bolero
genre: cuarteto
genre: son cubano
popularity: 4
followers: 267
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02ad458f88d44a90c711dda4a5e34a8792e54c730f9a8b2490b78e47d1ab8a57
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5003865-f401-4685-866a-a1d41228631d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5003865-f401-4685-866a-a1d41228631d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b5003865-f401-4685-866a-a1d41228631d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x02ad458f88d44a90c711dda4a5e34a8792e54c730f9a8b2490b78e47d1ab8a57","name":"Placido Acevedo","registered_at":"2026-06-20T14:24:26Z","symbol":"NIM1629882","token_address":"0x6b8ff863d9e9752f31416ecba30c732bb19c5e48","type":"artist","uuid":"b5003865-f401-4685-866a-a1d41228631d"}
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 0x02ad458f88d44a90c711dda4a5e34a8792e54c730f9a8b2490b78e47d1ab8a57. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5003865-f401-4685-866a-a1d41228631d.json and https://artists.proofprofile.net/proofs/artist/b5003865-f401-4685-866a-a1d41228631d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
  text: {"copyright_id":"0x02ad458f88d44a90c711dda4a5e34a8792e54c730f9a8b2490b78e47d1ab8a57","name":"Placido Acevedo","registered_at":"2026-06-20T14:24:26Z","symbol":"NIM1629882","token_address":"0x6b8ff863d9e9752f31416ecba30c732bb19c5e48","type":"artist","uuid":"b5003865-f401-4685-866a-a1d41228631d"}
album: Cuarteto Mayarí
  type: MusicAlbum
  date published: 2017-12-29