Royal City Saxophone Quartet
type: MusicGroup
genre: ragtime
popularity: 2
followers: 89
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcade1e55a524b9f5e22a81a89ee9db84747aac8ccf548e1c454dca4ad1453b58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f052a47b-b868-4756-b6bb-d4be495ad927.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f052a47b-b868-4756-b6bb-d4be495ad927.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f052a47b-b868-4756-b6bb-d4be495ad927
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcade1e55a524b9f5e22a81a89ee9db84747aac8ccf548e1c454dca4ad1453b58","name":"Royal City Saxophone Quartet","registered_at":"2026-06-21T12:48:32Z","symbol":"NIM1927916","token_address":"0xac7ca354d7789d6e8f5870870fadeb188566883e","type":"artist","uuid":"f052a47b-b868-4756-b6bb-d4be495ad927"}
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 0xcade1e55a524b9f5e22a81a89ee9db84747aac8ccf548e1c454dca4ad1453b58. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f052a47b-b868-4756-b6bb-d4be495ad927.json and https://artists.proofprofile.net/proofs/artist/f052a47b-b868-4756-b6bb-d4be495ad927.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xcade1e55a524b9f5e22a81a89ee9db84747aac8ccf548e1c454dca4ad1453b58","name":"Royal City Saxophone Quartet","registered_at":"2026-06-21T12:48:32Z","symbol":"NIM1927916","token_address":"0xac7ca354d7789d6e8f5870870fadeb188566883e","type":"artist","uuid":"f052a47b-b868-4756-b6bb-d4be495ad927"}
album: Ragtime For Rent
  type: MusicAlbum
  date published: 1999-10-12
album: Ticklin' Time ... From Joplin to Gershwin
  type: MusicAlbum
  date published: 1999-12-01
album: Music Of The Six Brown Brothers
  type: MusicAlbum
  date published: 2008-01-01
album: Music Of The Six Brown Brothers
  type: MusicAlbum
  date published: 2008-01-01