Buchberger Quartet
type: MusicGroup
genre: chamber music
popularity: 12
followers: 312
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3ee309fc1dae2754ddb35a2d97538d2b06c7c08c48b17527e638d7de9eff9961
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7aee31c5-0839-41ea-97df-5aef3d663392.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7aee31c5-0839-41ea-97df-5aef3d663392.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7aee31c5-0839-41ea-97df-5aef3d663392
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3ee309fc1dae2754ddb35a2d97538d2b06c7c08c48b17527e638d7de9eff9961","name":"Buchberger Quartet","registered_at":"2026-06-14T17:26:43Z","symbol":"NIM0524198","token_address":"0x5044aaa1d45587baf86d2a7ec1806e32cb78d11a","type":"artist","uuid":"7aee31c5-0839-41ea-97df-5aef3d663392"}
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 0x3ee309fc1dae2754ddb35a2d97538d2b06c7c08c48b17527e638d7de9eff9961. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7aee31c5-0839-41ea-97df-5aef3d663392.json and https://artists.proofprofile.net/proofs/artist/7aee31c5-0839-41ea-97df-5aef3d663392.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x3ee309fc1dae2754ddb35a2d97538d2b06c7c08c48b17527e638d7de9eff9961","name":"Buchberger Quartet","registered_at":"2026-06-14T17:26:43Z","symbol":"NIM0524198","token_address":"0x5044aaa1d45587baf86d2a7ec1806e32cb78d11a","type":"artist","uuid":"7aee31c5-0839-41ea-97df-5aef3d663392"}
album: Haydn: Complete String Quartets Vol. 13 - String Quartets Op. 50 Nos. 4-6
  type: MusicAlbum
  date published: 2009-05-01