Ensemble Oktoechos
type: MusicGroup
genre: gregorian chant
genre: medieval
popularity: 3
followers: 136
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d9bddd17e9fa74e30584d63b1d32d11f25125ee192a7adfc5f9c8b0a10e76d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9a3a9d1-14e3-4e61-b417-5b994146f6cf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9a3a9d1-14e3-4e61-b417-5b994146f6cf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f9a3a9d1-14e3-4e61-b417-5b994146f6cf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1d9bddd17e9fa74e30584d63b1d32d11f25125ee192a7adfc5f9c8b0a10e76d5","name":"Ensemble Oktoechos","registered_at":"2026-06-21T16:35:34Z","symbol":"NIM1974995","token_address":"0x4faceeaeae104e192ef0f9f32cbe09f464289e14","type":"artist","uuid":"f9a3a9d1-14e3-4e61-b417-5b994146f6cf"}
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 0x1d9bddd17e9fa74e30584d63b1d32d11f25125ee192a7adfc5f9c8b0a10e76d5. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9a3a9d1-14e3-4e61-b417-5b994146f6cf.json and https://artists.proofprofile.net/proofs/artist/f9a3a9d1-14e3-4e61-b417-5b994146f6cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0x1d9bddd17e9fa74e30584d63b1d32d11f25125ee192a7adfc5f9c8b0a10e76d5","name":"Ensemble Oktoechos","registered_at":"2026-06-21T16:35:34Z","symbol":"NIM1974995","token_address":"0x4faceeaeae104e192ef0f9f32cbe09f464289e14","type":"artist","uuid":"f9a3a9d1-14e3-4e61-b417-5b994146f6cf"}
album: Venetia Mundi Splendor
  type: MusicAlbum
  date published: 2017-10-06
album: Crucem tuam adoramus - Concerto per le sacre Ceneri 2007
  type: MusicAlbum
  date published: 2012-10-01