Christian Gratz
type: MusicGroup
genre: album rock
genre: arena rock
popularity: 2
followers: 338
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb63b6e97cc6e505999913a53aeac36b2ea9d1d36d4b6cadffd8f744f0acbdca7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953954
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953954
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/25896ec1-5820-4e5f-9b9c-2e124fe28414.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/25896ec1-5820-4e5f-9b9c-2e124fe28414.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/25896ec1-5820-4e5f-9b9c-2e124fe28414
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:18:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb63b6e97cc6e505999913a53aeac36b2ea9d1d36d4b6cadffd8f744f0acbdca7","name":"Christian Gratz","registered_at":"2026-06-16T02:38:00Z","symbol":"NIM0911112","token_address":"0x6e4983db6a1d36789d65bdc78b2ece816475a7cd","type":"artist","uuid":"25896ec1-5820-4e5f-9b9c-2e124fe28414"}
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 0xb63b6e97cc6e505999913a53aeac36b2ea9d1d36d4b6cadffd8f744f0acbdca7. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25896ec1-5820-4e5f-9b9c-2e124fe28414.json and https://artists.proofprofile.net/proofs/artist/25896ec1-5820-4e5f-9b9c-2e124fe28414.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:18:37Z
  text: {"copyright_id":"0xb63b6e97cc6e505999913a53aeac36b2ea9d1d36d4b6cadffd8f744f0acbdca7","name":"Christian Gratz","registered_at":"2026-06-16T02:38:00Z","symbol":"NIM0911112","token_address":"0x6e4983db6a1d36789d65bdc78b2ece816475a7cd","type":"artist","uuid":"25896ec1-5820-4e5f-9b9c-2e124fe28414"}
album: Nitelines
  type: MusicAlbum
  date published: 2018-08-01
album: Purple
  type: MusicAlbum
  date published: 2018-09-08
album: Where Are You Now
  type: MusicAlbum
  date published: 2018-11-01
album: City Lights
  type: MusicAlbum
  date published: 2019-02-01
album: Midnight
  type: MusicAlbum
  date published: 2019-07-19
album: 1979
  type: MusicAlbum
  date published: 2020-01-31
album: Hide Away
  type: MusicAlbum
  date published: 2020-07-17
album: 1981
  type: MusicAlbum
  date published: 2021-03-12
album: Stay the Night
  type: MusicAlbum
  date published: 2021-06-25