Mack Daddy Productions
type: MusicGroup
popularity: 7
followers: 76
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4dd7034a7bd0181b559c773b9448d346974af69f02eee2dede1e789793a805d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954174
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954174
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e7b9f1c-a57e-4fba-9bbc-f9213dc05e6d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e7b9f1c-a57e-4fba-9bbc-f9213dc05e6d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7e7b9f1c-a57e-4fba-9bbc-f9213dc05e6d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-18T03:01:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4dd7034a7bd0181b559c773b9448d346974af69f02eee2dede1e789793a805d8","name":"Mack Daddy Productions","registered_at":"2026-06-17T09:39:57Z","symbol":"NIM1355404","token_address":"0x62c9021e9b3a75726fa911ae9e209cc23e68d27e","type":"artist","uuid":"7e7b9f1c-a57e-4fba-9bbc-f9213dc05e6d"}
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 0x4dd7034a7bd0181b559c773b9448d346974af69f02eee2dede1e789793a805d8. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e7b9f1c-a57e-4fba-9bbc-f9213dc05e6d.json and https://artists.proofprofile.net/proofs/artist/7e7b9f1c-a57e-4fba-9bbc-f9213dc05e6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-18T03:01:36Z
  text: {"copyright_id":"0x4dd7034a7bd0181b559c773b9448d346974af69f02eee2dede1e789793a805d8","name":"Mack Daddy Productions","registered_at":"2026-06-17T09:39:57Z","symbol":"NIM1355404","token_address":"0x62c9021e9b3a75726fa911ae9e209cc23e68d27e","type":"artist","uuid":"7e7b9f1c-a57e-4fba-9bbc-f9213dc05e6d"}
album: New Life
  type: MusicAlbum
  date published: 2021-07-17