Tuna Universitaria de Distrito UNAM
type: MusicGroup
popularity: 2
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd9522038ab13a7225a2256c8ab7a69c58f415beda6a72ade8e0c8ce67f985bf0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e08d5b68-8a0c-4487-bc3c-bd691505b5ab.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e08d5b68-8a0c-4487-bc3c-bd691505b5ab.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e08d5b68-8a0c-4487-bc3c-bd691505b5ab
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd9522038ab13a7225a2256c8ab7a69c58f415beda6a72ade8e0c8ce67f985bf0","name":"Tuna Universitaria de Distrito UNAM","registered_at":"2026-06-21T06:15:55Z","symbol":"NIM1845584","token_address":"0xaa89b065ad8fdde66900c8487326809cd3adaa8e","type":"artist","uuid":"e08d5b68-8a0c-4487-bc3c-bd691505b5ab"}
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 0xd9522038ab13a7225a2256c8ab7a69c58f415beda6a72ade8e0c8ce67f985bf0. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e08d5b68-8a0c-4487-bc3c-bd691505b5ab.json and https://artists.proofprofile.net/proofs/artist/e08d5b68-8a0c-4487-bc3c-bd691505b5ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xd9522038ab13a7225a2256c8ab7a69c58f415beda6a72ade8e0c8ce67f985bf0","name":"Tuna Universitaria de Distrito UNAM","registered_at":"2026-06-21T06:15:55Z","symbol":"NIM1845584","token_address":"0xaa89b065ad8fdde66900c8487326809cd3adaa8e","type":"artist","uuid":"e08d5b68-8a0c-4487-bc3c-bd691505b5ab"}
album: Gaudeamus Igitur
  type: MusicAlbum
  date published: 1996-01-31
album: Veinticinco
  type: MusicAlbum
  date published: 2011-08-16
album: Certamen de Tunas en el Centro Histórico (En vivo 30 Aniversario de la TUDUNAM)
  type: MusicAlbum
  date published: 2016-10-15