Grupo Los Cafres
type: MusicGroup
genre: cumbia
genre: cumbia sonidera
popularity: 17
followers: 370
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77ee64d8e0a55cbd4dda88385920d892fc6a257b781812422800a8eb92cf18a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953730
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953730
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93ff7c52-914f-4532-8f48-2c2d76cf5d58.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93ff7c52-914f-4532-8f48-2c2d76cf5d58.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/93ff7c52-914f-4532-8f48-2c2d76cf5d58
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T02:47:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x77ee64d8e0a55cbd4dda88385920d892fc6a257b781812422800a8eb92cf18a3","name":"Grupo Los Cafres","registered_at":"2026-06-14T20:06:46Z","symbol":"NIM0562311","token_address":"0x607c0051ba8d2d454ba9bc3338b5cba45a910b2f","type":"artist","uuid":"93ff7c52-914f-4532-8f48-2c2d76cf5d58"}
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 0x77ee64d8e0a55cbd4dda88385920d892fc6a257b781812422800a8eb92cf18a3. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93ff7c52-914f-4532-8f48-2c2d76cf5d58.json and https://artists.proofprofile.net/proofs/artist/93ff7c52-914f-4532-8f48-2c2d76cf5d58.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T02:47:28Z
  text: {"copyright_id":"0x77ee64d8e0a55cbd4dda88385920d892fc6a257b781812422800a8eb92cf18a3","name":"Grupo Los Cafres","registered_at":"2026-06-14T20:06:46Z","symbol":"NIM0562311","token_address":"0x607c0051ba8d2d454ba9bc3338b5cba45a910b2f","type":"artist","uuid":"93ff7c52-914f-4532-8f48-2c2d76cf5d58"}
album: 20 Canonazos 100% Poblanos
  type: MusicAlbum
  date published: 2017-02-20