Sherif Mostafa
type: MusicGroup
popularity: 14
followers: 494
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c7d9283ac0567a71788ae420548ea3da460598b556d672080a3fadbade042e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/51aab940-1f42-4c3a-959f-b4973514bd00.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/51aab940-1f42-4c3a-959f-b4973514bd00.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/51aab940-1f42-4c3a-959f-b4973514bd00
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9c7d9283ac0567a71788ae420548ea3da460598b556d672080a3fadbade042e2","name":"Sherif Mostafa","registered_at":"2026-06-14T13:02:49Z","symbol":"NIM0461218","token_address":"0xe9b07914b194dd92d9c46dd08b4e437f5c0b0e21","type":"artist","uuid":"51aab940-1f42-4c3a-959f-b4973514bd00"}
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 0x9c7d9283ac0567a71788ae420548ea3da460598b556d672080a3fadbade042e2. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51aab940-1f42-4c3a-959f-b4973514bd00.json and https://artists.proofprofile.net/proofs/artist/51aab940-1f42-4c3a-959f-b4973514bd00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0x9c7d9283ac0567a71788ae420548ea3da460598b556d672080a3fadbade042e2","name":"Sherif Mostafa","registered_at":"2026-06-14T13:02:49Z","symbol":"NIM0461218","token_address":"0xe9b07914b194dd92d9c46dd08b4e437f5c0b0e21","type":"artist","uuid":"51aab940-1f42-4c3a-959f-b4973514bd00"}
album: Zekrayat Hayati
  type: MusicAlbum
  date published: 2018-10-21