Alfred Wallenstein
type: MusicGroup
genre: classical
genre: classical piano
description: Alfred Wallenstein (October 7, 1898 – February 8, 1983) was an American cellist and conductor. A successful solo and orchestral cellist in his early life, Wallenstein took up conducting in the 1930s a
popularity: 36
followers: 299
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfbe555a22c2bc0c20787706774c3b976c323d5155996c031f814da9631f75dab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/563fc456-48f9-42e3-a473-77ce12f2792e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/563fc456-48f9-42e3-a473-77ce12f2792e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/563fc456-48f9-42e3-a473-77ce12f2792e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfbe555a22c2bc0c20787706774c3b976c323d5155996c031f814da9631f75dab","name":"Alfred Wallenstein","registered_at":"2026-06-11T21:05:01Z","symbol":"NIM0111343","token_address":"0xc9a96438fcc19aa56a84af2e7b9bf102dbd33212","type":"artist","uuid":"563fc456-48f9-42e3-a473-77ce12f2792e"}
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 0xfbe555a22c2bc0c20787706774c3b976c323d5155996c031f814da9631f75dab. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/563fc456-48f9-42e3-a473-77ce12f2792e.json and https://artists.proofprofile.net/proofs/artist/563fc456-48f9-42e3-a473-77ce12f2792e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xfbe555a22c2bc0c20787706774c3b976c323d5155996c031f814da9631f75dab","name":"Alfred Wallenstein","registered_at":"2026-06-11T21:05:01Z","symbol":"NIM0111343","token_address":"0xc9a96438fcc19aa56a84af2e7b9bf102dbd33212","type":"artist","uuid":"563fc456-48f9-42e3-a473-77ce12f2792e"}
album: Mozart: Le Nozze di Figaro (The Marriage of Figaro), K. 492
  type: MusicAlbum
  date published: 2014-10-01
album: Heifetz Plays the Best of Bach, Mozart, Paganini & Vitali
  type: MusicAlbum
  date published: 2013-07-02
album: Lauritz Melchior in Concert 1944 - 1949
  type: MusicAlbum
  date published: 2021-07-02