Matt Rösner
type: MusicGroup
genre: ambient
genre: dark ambient
genre: drone
genre: neoclassical
popularity: 5
followers: 381
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72936ab4a2338604904f8083b6ebe78dd9421702ee4e0281e9f75a14806c29b5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6e0d76c-69f6-42c5-ac1f-3de1170436f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6e0d76c-69f6-42c5-ac1f-3de1170436f5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f6e0d76c-69f6-42c5-ac1f-3de1170436f5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x72936ab4a2338604904f8083b6ebe78dd9421702ee4e0281e9f75a14806c29b5","name":"Matt Rösner","registered_at":"2026-06-21T15:37:32Z","symbol":"NIM1961245","token_address":"0x0182ce28a9443aaa93865d21dfd48ae1236d096a","type":"artist","uuid":"f6e0d76c-69f6-42c5-ac1f-3de1170436f5"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72936ab4a2338604904f8083b6ebe78dd9421702ee4e0281e9f75a14806c29b5. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6e0d76c-69f6-42c5-ac1f-3de1170436f5.json and https://artists.proofprofile.net/proofs/artist/f6e0d76c-69f6-42c5-ac1f-3de1170436f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x72936ab4a2338604904f8083b6ebe78dd9421702ee4e0281e9f75a14806c29b5","name":"Matt Rösner","registered_at":"2026-06-21T15:37:32Z","symbol":"NIM1961245","token_address":"0x0182ce28a9443aaa93865d21dfd48ae1236d096a","type":"artist","uuid":"f6e0d76c-69f6-42c5-ac1f-3de1170436f5"}
album: Repeat
  type: MusicAlbum
  date published: 2009-09-09
album: Tape Series (Volume 1)
  type: MusicAlbum
  date published: 2010-05-30
album: Tape Series, Vol. 2
  type: MusicAlbum
  date published: 2012-02-27
album: New Isolation
  type: MusicAlbum
  date published: 2019-12-01
album: No Lasting Form
  type: MusicAlbum
  date published: 2021-04-02
album: Empty, Expanding, Collapsing
  type: MusicAlbum
  date published: 2023-03-03