Zandro Urbiztondo
type: MusicGroup
genre: opm
popularity: 21
followers: 1538
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc81eefa2f960d5f1f78cc51cd220d5b315b944cf9c2fdc0031812259f5368a3b
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/e3c2a164-2ca8-4e93-b073-99e47574073a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3c2a164-2ca8-4e93-b073-99e47574073a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e3c2a164-2ca8-4e93-b073-99e47574073a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc81eefa2f960d5f1f78cc51cd220d5b315b944cf9c2fdc0031812259f5368a3b","name":"Zandro Urbiztondo","registered_at":"2026-06-12T12:10:39Z","symbol":"NIM0293787","token_address":"0x42dba39486eb4c363d73855f1b47f427d448aa12","type":"artist","uuid":"e3c2a164-2ca8-4e93-b073-99e47574073a"}
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 0xc81eefa2f960d5f1f78cc51cd220d5b315b944cf9c2fdc0031812259f5368a3b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3c2a164-2ca8-4e93-b073-99e47574073a.json and https://artists.proofprofile.net/proofs/artist/e3c2a164-2ca8-4e93-b073-99e47574073a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xc81eefa2f960d5f1f78cc51cd220d5b315b944cf9c2fdc0031812259f5368a3b","name":"Zandro Urbiztondo","registered_at":"2026-06-12T12:10:39Z","symbol":"NIM0293787","token_address":"0x42dba39486eb4c363d73855f1b47f427d448aa12","type":"artist","uuid":"e3c2a164-2ca8-4e93-b073-99e47574073a"}
album: Cantilan
  type: MusicAlbum
  date published: 1995-09-01
album: Surigaonon
  type: MusicAlbum
  date published: 2003-07-15
album: Baby Ko
  type: MusicAlbum
  date published: 2006-09-01
album: Umaasa
  type: MusicAlbum
  date published: 2016-07-07
album: I Ain't Ready To Say Goodbye
  type: MusicAlbum
  date published: 2025-09-16