OJ Blaq
type: MusicGroup
description: Andy Nii Akrashie (1983 – 17 August 2023) known professionally as OJ Blaq, was a Ghanaian actor and musician. His first album, The Blaq Mixtape, which came out in 2006, made him famous and got him a l
popularity: 2
followers: 80
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa144b838b2fc58d2100dd6bd326e1c9e30e60809bff88e2c7a11863ce38f1899
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d368462f-135e-45c3-8622-a45f2578f79c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d368462f-135e-45c3-8622-a45f2578f79c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d368462f-135e-45c3-8622-a45f2578f79c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa144b838b2fc58d2100dd6bd326e1c9e30e60809bff88e2c7a11863ce38f1899","name":"OJ Blaq","registered_at":"2026-06-21T01:40:06Z","symbol":"NIM1780285","token_address":"0xac73454ad875772e4153b75353f3eb036282cc36","type":"artist","uuid":"d368462f-135e-45c3-8622-a45f2578f79c"}
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 0xa144b838b2fc58d2100dd6bd326e1c9e30e60809bff88e2c7a11863ce38f1899. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d368462f-135e-45c3-8622-a45f2578f79c.json and https://artists.proofprofile.net/proofs/artist/d368462f-135e-45c3-8622-a45f2578f79c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0xa144b838b2fc58d2100dd6bd326e1c9e30e60809bff88e2c7a11863ce38f1899","name":"OJ Blaq","registered_at":"2026-06-21T01:40:06Z","symbol":"NIM1780285","token_address":"0xac73454ad875772e4153b75353f3eb036282cc36","type":"artist","uuid":"d368462f-135e-45c3-8622-a45f2578f79c"}
album: His Presence
  type: MusicAlbum
  date published: 2018-08-09
album: Show Dem
  type: MusicAlbum
  date published: 2019-03-23
album: Saka Saka
  type: MusicAlbum
  date published: 2022-03-07
album: Show Dem
  type: MusicAlbum
  date published: 2022-08-20