Kühn Choir Of Prague
type: MusicGroup
popularity: 14
followers: 89
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe0b4cde34c2c43e7ebc2b7d1728d805cb92728900aa97f66ea323b156a8c84de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953599
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953599
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0df6d32a-7e5b-4ef5-a426-c4e746f8b8a8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0df6d32a-7e5b-4ef5-a426-c4e746f8b8a8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0df6d32a-7e5b-4ef5-a426-c4e746f8b8a8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T06:43:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe0b4cde34c2c43e7ebc2b7d1728d805cb92728900aa97f66ea323b156a8c84de","name":"Kühn Choir Of Prague","registered_at":"2026-06-14T05:54:07Z","symbol":"NIM0358987","token_address":"0xb8ef078a8c3fed90e5fbdf23214cacbf4362eb95","type":"artist","uuid":"0df6d32a-7e5b-4ef5-a426-c4e746f8b8a8"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b4cde34c2c43e7ebc2b7d1728d805cb92728900aa97f66ea323b156a8c84de. Chain 2 (Bitcoin): anchored in block 953599 (2026-06-14T06:43:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0df6d32a-7e5b-4ef5-a426-c4e746f8b8a8.json and https://artists.proofprofile.net/proofs/artist/0df6d32a-7e5b-4ef5-a426-c4e746f8b8a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T06:43:55Z
  text: {"copyright_id":"0xe0b4cde34c2c43e7ebc2b7d1728d805cb92728900aa97f66ea323b156a8c84de","name":"Kühn Choir Of Prague","registered_at":"2026-06-14T05:54:07Z","symbol":"NIM0358987","token_address":"0xb8ef078a8c3fed90e5fbdf23214cacbf4362eb95","type":"artist","uuid":"0df6d32a-7e5b-4ef5-a426-c4e746f8b8a8"}
album: Voices of Earth and Air, Vol. 4
  type: MusicAlbum
  date published: 2022-09-09
album: Voices of Earth and Air, Vol. 4
  type: MusicAlbum
  date published: 2022-09-09
album: Tapestry of Voices
  type: MusicAlbum
  date published: 2023-12-01
album: Celestial Voices
  type: MusicAlbum
  date published: 2024-03-01
album: Celestial Voices, Vol. 2
  type: MusicAlbum
  date published: 2025-11-14