Friedemann Rieger
type: MusicGroup
genre: chamber music
genre: classical
popularity: 6
followers: 85
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea71380781c973fa05c8ca9d0c5eb9f70b0c4c299e0ac81fab863a257b251cd3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab6a1b93-30cc-4ada-8766-f16664733268.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab6a1b93-30cc-4ada-8766-f16664733268.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ab6a1b93-30cc-4ada-8766-f16664733268
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xea71380781c973fa05c8ca9d0c5eb9f70b0c4c299e0ac81fab863a257b251cd3","name":"Friedemann Rieger","registered_at":"2026-06-20T09:42:32Z","symbol":"NIM1583120","token_address":"0x92a08fc10c666691ebd8dacb3f5bd53a446edb9c","type":"artist","uuid":"ab6a1b93-30cc-4ada-8766-f16664733268"}
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 0xea71380781c973fa05c8ca9d0c5eb9f70b0c4c299e0ac81fab863a257b251cd3. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab6a1b93-30cc-4ada-8766-f16664733268.json and https://artists.proofprofile.net/proofs/artist/ab6a1b93-30cc-4ada-8766-f16664733268.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0xea71380781c973fa05c8ca9d0c5eb9f70b0c4c299e0ac81fab863a257b251cd3","name":"Friedemann Rieger","registered_at":"2026-06-20T09:42:32Z","symbol":"NIM1583120","token_address":"0x92a08fc10c666691ebd8dacb3f5bd53a446edb9c","type":"artist","uuid":"ab6a1b93-30cc-4ada-8766-f16664733268"}
album: Mozart - Beethoven: Violin Sonatas
  type: MusicAlbum
  date published: 2011-05-24