Friedrich Schorr
type: MusicGroup
genre: opera
description: thumb|230px|Friedrich Schorr Friedrich Schorr (September 2, 1888 – August 14, 1953), was a renowned Austrian-Hungarian bass-baritone opera singer of Jewish origin. He later became a naturalized Ameri
popularity: 2
followers: 109
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6f8f0a1d1241535c4b6dbed8aa9b082533e81233c1e9d6be97f7cf029957e68c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f54edf7-ee7c-46c6-a7af-ac15093882ad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f54edf7-ee7c-46c6-a7af-ac15093882ad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7f54edf7-ee7c-46c6-a7af-ac15093882ad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6f8f0a1d1241535c4b6dbed8aa9b082533e81233c1e9d6be97f7cf029957e68c","name":"Friedrich Schorr","registered_at":"2026-06-17T09:53:03Z","symbol":"NIM1358528","token_address":"0x0b1dcca2408e3f1c41911d9c6907813754b24c6c","type":"artist","uuid":"7f54edf7-ee7c-46c6-a7af-ac15093882ad"}
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 0x6f8f0a1d1241535c4b6dbed8aa9b082533e81233c1e9d6be97f7cf029957e68c. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f54edf7-ee7c-46c6-a7af-ac15093882ad.json and https://artists.proofprofile.net/proofs/artist/7f54edf7-ee7c-46c6-a7af-ac15093882ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0x6f8f0a1d1241535c4b6dbed8aa9b082533e81233c1e9d6be97f7cf029957e68c","name":"Friedrich Schorr","registered_at":"2026-06-17T09:53:03Z","symbol":"NIM1358528","token_address":"0x0b1dcca2408e3f1c41911d9c6907813754b24c6c","type":"artist","uuid":"7f54edf7-ee7c-46c6-a7af-ac15093882ad"}
album: Die Walküre
  type: MusicAlbum
  date published: 2021-10-01