Michael Schopper
type: MusicGroup
genre: opera
description: Michael Schopper (born 28 May 1942) is a German bass-baritone in opera and concert, and an academic teacher. Michael Schopper was educated with the Regensburger Domspatzen and studied on a scholarshi
popularity: 9
followers: 87
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x55e33192b3e7f1cf29e8b3b7e14d83bd9ea2703ec45ce48671c792b57780c5e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8dda66be-8eb3-454f-be05-3059d393615e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8dda66be-8eb3-454f-be05-3059d393615e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8dda66be-8eb3-454f-be05-3059d393615e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x55e33192b3e7f1cf29e8b3b7e14d83bd9ea2703ec45ce48671c792b57780c5e3","name":"Michael Schopper","registered_at":"2026-06-17T15:07:41Z","symbol":"NIM1433491","token_address":"0xae7f5219b16c9ab4f2123bfebb94c3f605374674","type":"artist","uuid":"8dda66be-8eb3-454f-be05-3059d393615e"}
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 0x55e33192b3e7f1cf29e8b3b7e14d83bd9ea2703ec45ce48671c792b57780c5e3. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8dda66be-8eb3-454f-be05-3059d393615e.json and https://artists.proofprofile.net/proofs/artist/8dda66be-8eb3-454f-be05-3059d393615e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x55e33192b3e7f1cf29e8b3b7e14d83bd9ea2703ec45ce48671c792b57780c5e3","name":"Michael Schopper","registered_at":"2026-06-17T15:07:41Z","symbol":"NIM1433491","token_address":"0xae7f5219b16c9ab4f2123bfebb94c3f605374674","type":"artist","uuid":"8dda66be-8eb3-454f-be05-3059d393615e"}
album: Basso & Organo (Motetten von Engelsturz und Weltuntergang)
  type: MusicAlbum
  date published: 2001-09-15