University of Bielsko-Biala Choir
type: MusicGroup
genre: choral
genre: requiem
popularity: 10
followers: 156
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30542468f934fc4e38e0d365077ad7b0d42fd6a5079c64e520f9fb7c35431c64
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/abd1c5eb-a107-4d37-b2f8-c56e2405aa4c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/abd1c5eb-a107-4d37-b2f8-c56e2405aa4c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/abd1c5eb-a107-4d37-b2f8-c56e2405aa4c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30542468f934fc4e38e0d365077ad7b0d42fd6a5079c64e520f9fb7c35431c64","name":"University of Bielsko-Biala Choir","registered_at":"2026-06-20T09:29:45Z","symbol":"NIM1583048","token_address":"0x7994c74d5a655db91c58c4a3bd6e384a4ac87484","type":"artist","uuid":"abd1c5eb-a107-4d37-b2f8-c56e2405aa4c"}
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 0x30542468f934fc4e38e0d365077ad7b0d42fd6a5079c64e520f9fb7c35431c64. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abd1c5eb-a107-4d37-b2f8-c56e2405aa4c.json and https://artists.proofprofile.net/proofs/artist/abd1c5eb-a107-4d37-b2f8-c56e2405aa4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0x30542468f934fc4e38e0d365077ad7b0d42fd6a5079c64e520f9fb7c35431c64","name":"University of Bielsko-Biala Choir","registered_at":"2026-06-20T09:29:45Z","symbol":"NIM1583048","token_address":"0x7994c74d5a655db91c58c4a3bd6e384a4ac87484","type":"artist","uuid":"abd1c5eb-a107-4d37-b2f8-c56e2405aa4c"}
album: Kolędy w wykonaniu Chóru Akademii Techniczno-Humanistycznej w Bielsku-Białej
  type: MusicAlbum
  date published: 2010-12-24
album: O Magnum Mysterium - Chór ATH
  type: MusicAlbum
  date published: 2013-08-16
album: Sing, Be, Live
  type: MusicAlbum
  date published: 2024-04-16