Matthias Frey
type: MusicGroup
genre: jazz funk
popularity: 10
followers: 397
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x67e7b4c170256383bcd5b0e48b6b5278a4b4d6b11e7b9fcd55c5098940e9e098
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/23fc1ae7-9191-4985-a54a-27357f1e17f3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/23fc1ae7-9191-4985-a54a-27357f1e17f3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/23fc1ae7-9191-4985-a54a-27357f1e17f3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x67e7b4c170256383bcd5b0e48b6b5278a4b4d6b11e7b9fcd55c5098940e9e098","name":"Matthias Frey","registered_at":"2026-06-16T02:03:20Z","symbol":"NIM0902829","token_address":"0xcbe36221e15d1eb58e53783a6e94ecca83706acb","type":"artist","uuid":"23fc1ae7-9191-4985-a54a-27357f1e17f3"}
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 0x67e7b4c170256383bcd5b0e48b6b5278a4b4d6b11e7b9fcd55c5098940e9e098. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23fc1ae7-9191-4985-a54a-27357f1e17f3.json and https://artists.proofprofile.net/proofs/artist/23fc1ae7-9191-4985-a54a-27357f1e17f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:14:26Z
  text: {"copyright_id":"0x67e7b4c170256383bcd5b0e48b6b5278a4b4d6b11e7b9fcd55c5098940e9e098","name":"Matthias Frey","registered_at":"2026-06-16T02:03:20Z","symbol":"NIM0902829","token_address":"0xcbe36221e15d1eb58e53783a6e94ecca83706acb","type":"artist","uuid":"23fc1ae7-9191-4985-a54a-27357f1e17f3"}
album: Ziyada (Acoustic)
  type: MusicAlbum
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  date published: 2002-06-30
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