Tropicana Club
type: MusicGroup
description: El Tropicana Night Club in Havana, Cuba located in a lush, estate tropical garden opened on December 30, 1939 at the Villa Mina in Marianao. It is located next door to the old Colegio de Belén, Havan
popularity: 4
followers: 123
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5f0765317bd8aa79972555b7692b2d188669b183b8e46fe4a98697d5f3a69959
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953924
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953924
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1c400a1b-584a-4f22-bafd-35af2432759e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1c400a1b-584a-4f22-bafd-35af2432759e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1c400a1b-584a-4f22-bafd-35af2432759e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:52:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5f0765317bd8aa79972555b7692b2d188669b183b8e46fe4a98697d5f3a69959","name":"Tropicana Club","registered_at":"2026-06-15T23:38:58Z","symbol":"NIM0868359","token_address":"0x81ea015498f5e49ea94d4390d7caa351e562e8f7","type":"artist","uuid":"1c400a1b-584a-4f22-bafd-35af2432759e"}
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 0x5f0765317bd8aa79972555b7692b2d188669b183b8e46fe4a98697d5f3a69959. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c400a1b-584a-4f22-bafd-35af2432759e.json and https://artists.proofprofile.net/proofs/artist/1c400a1b-584a-4f22-bafd-35af2432759e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x5f0765317bd8aa79972555b7692b2d188669b183b8e46fe4a98697d5f3a69959","name":"Tropicana Club","registered_at":"2026-06-15T23:38:58Z","symbol":"NIM0868359","token_address":"0x81ea015498f5e49ea94d4390d7caa351e562e8f7","type":"artist","uuid":"1c400a1b-584a-4f22-bafd-35af2432759e"}