Arthur Winograd
type: MusicGroup
genre: chamber music
description: Arthur Winograd (April 22, 1920 – April 22, 2010) was the music director of the Hartford Symphony Orchestra and the founding cellist of the Juilliard String Quartet.MARGALIT FOX, "Arthur Winograd, Har
popularity: 2
followers: 69
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x951010e375d499a8916cb6e2797d6135495bf260f921269f4171d2abf25fd94d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/051c4950-e469-4450-820f-f3ee472f123c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/051c4950-e469-4450-820f-f3ee472f123c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/051c4950-e469-4450-820f-f3ee472f123c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x951010e375d499a8916cb6e2797d6135495bf260f921269f4171d2abf25fd94d","name":"Arthur Winograd","registered_at":"2026-06-15T15:22:21Z","symbol":"NIM0749856","token_address":"0x9da32828e4e089d691fb5c8c0334416e73ebf066","type":"artist","uuid":"051c4950-e469-4450-820f-f3ee472f123c"}
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 0x951010e375d499a8916cb6e2797d6135495bf260f921269f4171d2abf25fd94d. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/051c4950-e469-4450-820f-f3ee472f123c.json and https://artists.proofprofile.net/proofs/artist/051c4950-e469-4450-820f-f3ee472f123c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:09:47Z
  text: {"copyright_id":"0x951010e375d499a8916cb6e2797d6135495bf260f921269f4171d2abf25fd94d","name":"Arthur Winograd","registered_at":"2026-06-15T15:22:21Z","symbol":"NIM0749856","token_address":"0x9da32828e4e089d691fb5c8c0334416e73ebf066","type":"artist","uuid":"051c4950-e469-4450-820f-f3ee472f123c"}
album: Mozart: Church Sonatas, Vol. 2 (Mono Version)
  type: MusicAlbum
  date published: 1959-01-01
album: Mozart: Church Sonatas, Vol. 1 (Mono Version)
  type: MusicAlbum
  date published: 1959-01-01