Big Dirk
type: MusicGroup
popularity: 7
followers: 224
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f33e93ed8d36eb8f1a589fe2f752dd8611c4ef67d7313804c5dde288cf41f61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953879
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953879
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09c44b83-82a0-49d1-a1b9-c59a02d5611e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09c44b83-82a0-49d1-a1b9-c59a02d5611e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/09c44b83-82a0-49d1-a1b9-c59a02d5611e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9f33e93ed8d36eb8f1a589fe2f752dd8611c4ef67d7313804c5dde288cf41f61","name":"Big Dirk","registered_at":"2026-06-15T16:59:36Z","symbol":"NIM0773076","token_address":"0xece51e458005bd00118d5c71c8b5505c36169c62","type":"artist","uuid":"09c44b83-82a0-49d1-a1b9-c59a02d5611e"}
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 0x9f33e93ed8d36eb8f1a589fe2f752dd8611c4ef67d7313804c5dde288cf41f61. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09c44b83-82a0-49d1-a1b9-c59a02d5611e.json and https://artists.proofprofile.net/proofs/artist/09c44b83-82a0-49d1-a1b9-c59a02d5611e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:57:35Z
  text: {"copyright_id":"0x9f33e93ed8d36eb8f1a589fe2f752dd8611c4ef67d7313804c5dde288cf41f61","name":"Big Dirk","registered_at":"2026-06-15T16:59:36Z","symbol":"NIM0773076","token_address":"0xece51e458005bd00118d5c71c8b5505c36169c62","type":"artist","uuid":"09c44b83-82a0-49d1-a1b9-c59a02d5611e"}
album: Now Or Later (You Can Get This)
  type: MusicAlbum
  date published: 2017-02-10