Black Sherif
type: MusicGroup
genre: hiplife
description: Mohammed Ismail Sherif (born 9 January 2002), professionally known as Black Sherif and formerly Blacko, is a Ghanaian singer, rapper and fashion model. He initially gained popularity in 2021 with his
popularity: 13
followers: 348
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7ac8f28c9e875ad6e029ebd496e06672cf4326a920a4179819321de6f6bb2d6d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2fd7f6c-1144-467a-95d0-b8e27ceffd01.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2fd7f6c-1144-467a-95d0-b8e27ceffd01.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a2fd7f6c-1144-467a-95d0-b8e27ceffd01
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7ac8f28c9e875ad6e029ebd496e06672cf4326a920a4179819321de6f6bb2d6d","name":"Black Sherif","registered_at":"2026-06-14T21:35:32Z","symbol":"NIM0583497","token_address":"0xc4dac4e4995f2c0ee445b45c4f4cd69ff63cdd0f","type":"artist","uuid":"a2fd7f6c-1144-467a-95d0-b8e27ceffd01"}
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 0x7ac8f28c9e875ad6e029ebd496e06672cf4326a920a4179819321de6f6bb2d6d. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2fd7f6c-1144-467a-95d0-b8e27ceffd01.json and https://artists.proofprofile.net/proofs/artist/a2fd7f6c-1144-467a-95d0-b8e27ceffd01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:52:01Z
  text: {"copyright_id":"0x7ac8f28c9e875ad6e029ebd496e06672cf4326a920a4179819321de6f6bb2d6d","name":"Black Sherif","registered_at":"2026-06-14T21:35:32Z","symbol":"NIM0583497","token_address":"0xc4dac4e4995f2c0ee445b45c4f4cd69ff63cdd0f","type":"artist","uuid":"a2fd7f6c-1144-467a-95d0-b8e27ceffd01"}
album: Lord Im Amazed
  type: MusicAlbum
  date published: 2025-01-13