Maria Müller
type: MusicGroup
genre: opera
description: thumb|Maria Mueller standing at the stage door of the Metropolitan Opera House, New York City, 1925 Maria Müller (29 January 1889 – 13 March 1958Bayreuth Registry Office, Death Register 252/1958) was
popularity: 4
followers: 183
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ad99bcdb4c37c6e32c2b16164539ce0e03a273867774bee06f89f1819283919
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/da4bdbf1-df81-4d55-9a25-ca540b95144f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/da4bdbf1-df81-4d55-9a25-ca540b95144f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/da4bdbf1-df81-4d55-9a25-ca540b95144f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ad99bcdb4c37c6e32c2b16164539ce0e03a273867774bee06f89f1819283919","name":"Maria Müller","registered_at":"2026-06-21T04:14:46Z","symbol":"NIM1816479","token_address":"0xa93497e22de733e8b9f2b77d3af218e51e8137ac","type":"artist","uuid":"da4bdbf1-df81-4d55-9a25-ca540b95144f"}
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 0x2ad99bcdb4c37c6e32c2b16164539ce0e03a273867774bee06f89f1819283919. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da4bdbf1-df81-4d55-9a25-ca540b95144f.json and https://artists.proofprofile.net/proofs/artist/da4bdbf1-df81-4d55-9a25-ca540b95144f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x2ad99bcdb4c37c6e32c2b16164539ce0e03a273867774bee06f89f1819283919","name":"Maria Müller","registered_at":"2026-06-21T04:14:46Z","symbol":"NIM1816479","token_address":"0xa93497e22de733e8b9f2b77d3af218e51e8137ac","type":"artist","uuid":"da4bdbf1-df81-4d55-9a25-ca540b95144f"}
album: Richard Wagner : Lohengrin (Excerpts)
  type: MusicAlbum
  date published: 2004