Sotto Voce Quartet
type: MusicGroup
genre: chamber music
popularity: 3
followers: 729
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x067578c3276281272b6514fc62e3f462fac6f9a8a877f85fae4c41b7a2f96515
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc585540-fbda-4cac-957d-fc89b49f6085.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc585540-fbda-4cac-957d-fc89b49f6085.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bc585540-fbda-4cac-957d-fc89b49f6085
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x067578c3276281272b6514fc62e3f462fac6f9a8a877f85fae4c41b7a2f96515","name":"Sotto Voce Quartet","registered_at":"2026-06-20T17:16:10Z","symbol":"NIM1664588","token_address":"0x625109c9c6059c9eedb486d16b29704828312bbf","type":"artist","uuid":"bc585540-fbda-4cac-957d-fc89b49f6085"}
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 0x067578c3276281272b6514fc62e3f462fac6f9a8a877f85fae4c41b7a2f96515. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc585540-fbda-4cac-957d-fc89b49f6085.json and https://artists.proofprofile.net/proofs/artist/bc585540-fbda-4cac-957d-fc89b49f6085.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x067578c3276281272b6514fc62e3f462fac6f9a8a877f85fae4c41b7a2f96515","name":"Sotto Voce Quartet","registered_at":"2026-06-20T17:16:10Z","symbol":"NIM1664588","token_address":"0x625109c9c6059c9eedb486d16b29704828312bbf","type":"artist","uuid":"bc585540-fbda-4cac-957d-fc89b49f6085"}
album: Consequences
  type: MusicAlbum
  date published: 2002
album: Refractions - Old & New Music for Low Brass
  type: MusicAlbum
  date published: 2008-03-08
album: Take This Hammer: Music Composed for the Sotto Voce Quartet
  type: MusicAlbum
  date published: 2014-01-22
album: GROOVES
  type: MusicAlbum
  date published: 2025-09-01