Johannes Mattheson
type: MusicGroup
popularity: 2
followers: 75
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe0d3313ba817b83c4968c66b58c3a2e7b2a31fb193df69f58a72a0d41c436a68
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/e3b87bf9-3608-4e33-be11-ab7aee3609f7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3b87bf9-3608-4e33-be11-ab7aee3609f7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e3b87bf9-3608-4e33-be11-ab7aee3609f7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe0d3313ba817b83c4968c66b58c3a2e7b2a31fb193df69f58a72a0d41c436a68","name":"Johannes Mattheson","registered_at":"2026-06-21T07:52:57Z","symbol":"NIM1863446","token_address":"0xd2365698fc65b7d28e3c2359203c88334676fb6b","type":"artist","uuid":"e3b87bf9-3608-4e33-be11-ab7aee3609f7"}
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 0xe0d3313ba817b83c4968c66b58c3a2e7b2a31fb193df69f58a72a0d41c436a68. 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/e3b87bf9-3608-4e33-be11-ab7aee3609f7.json and https://artists.proofprofile.net/proofs/artist/e3b87bf9-3608-4e33-be11-ab7aee3609f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xe0d3313ba817b83c4968c66b58c3a2e7b2a31fb193df69f58a72a0d41c436a68","name":"Johannes Mattheson","registered_at":"2026-06-21T07:52:57Z","symbol":"NIM1863446","token_address":"0xd2365698fc65b7d28e3c2359203c88334676fb6b","type":"artist","uuid":"e3b87bf9-3608-4e33-be11-ab7aee3609f7"}
album: Mattheson: Der Brauchbare Virtuoso
  type: MusicAlbum
  date published: 2002
album: Mattheson: Der Brauchbare Virtuoso
  type: MusicAlbum
  date published: 2003-01-01