Mark Grandel
type: MusicGroup
genre: minimal techno
popularity: 11
followers: 618
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe14afd1be162c9d96e44d81821a2a6845e5b605d0df4deeaffd85f8ba49eda1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953645
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953645
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40492d7e-67f7-446e-87fd-24d0e2dbac25.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40492d7e-67f7-446e-87fd-24d0e2dbac25.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/40492d7e-67f7-446e-87fd-24d0e2dbac25
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T14:31:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe14afd1be162c9d96e44d81821a2a6845e5b605d0df4deeaffd85f8ba49eda1","name":"Mark Grandel","registered_at":"2026-06-14T11:10:44Z","symbol":"NIM0434475","token_address":"0xff4df2cd3eb97a1b2a44689845e39fc9c08d65b8","type":"artist","uuid":"40492d7e-67f7-446e-87fd-24d0e2dbac25"}
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 0xfe14afd1be162c9d96e44d81821a2a6845e5b605d0df4deeaffd85f8ba49eda1. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40492d7e-67f7-446e-87fd-24d0e2dbac25.json and https://artists.proofprofile.net/proofs/artist/40492d7e-67f7-446e-87fd-24d0e2dbac25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xfe14afd1be162c9d96e44d81821a2a6845e5b605d0df4deeaffd85f8ba49eda1","name":"Mark Grandel","registered_at":"2026-06-14T11:10:44Z","symbol":"NIM0434475","token_address":"0xff4df2cd3eb97a1b2a44689845e39fc9c08d65b8","type":"artist","uuid":"40492d7e-67f7-446e-87fd-24d0e2dbac25"}
album: Oxidation EP
  type: MusicAlbum
  date published: 2018-12-31