عمرو حرفوش
type: MusicGroup
genre: mahraganat
popularity: 3
followers: 1003
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8b17a95d6e47e1a8244e81091dee8f8d6f824f2f55ba13db2444afb9734c3fa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953888
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953888
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0cea0efb-6cb5-4c28-8aeb-f7cec5d1f300.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0cea0efb-6cb5-4c28-8aeb-f7cec5d1f300.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0cea0efb-6cb5-4c28-8aeb-f7cec5d1f300
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:55:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa8b17a95d6e47e1a8244e81091dee8f8d6f824f2f55ba13db2444afb9734c3fa","name":"عمرو حرفوش","registered_at":"2026-06-15T18:14:31Z","symbol":"NIM0790954","token_address":"0xf5759bca437daa4830d46ae1d25f4e53540cfaa6","type":"artist","uuid":"0cea0efb-6cb5-4c28-8aeb-f7cec5d1f300"}
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 0xa8b17a95d6e47e1a8244e81091dee8f8d6f824f2f55ba13db2444afb9734c3fa. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0cea0efb-6cb5-4c28-8aeb-f7cec5d1f300.json and https://artists.proofprofile.net/proofs/artist/0cea0efb-6cb5-4c28-8aeb-f7cec5d1f300.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T04:55:23Z
  text: {"copyright_id":"0xa8b17a95d6e47e1a8244e81091dee8f8d6f824f2f55ba13db2444afb9734c3fa","name":"عمرو حرفوش","registered_at":"2026-06-15T18:14:31Z","symbol":"NIM0790954","token_address":"0xf5759bca437daa4830d46ae1d25f4e53540cfaa6","type":"artist","uuid":"0cea0efb-6cb5-4c28-8aeb-f7cec5d1f300"}
album: يا محمد
  type: MusicAlbum
  date published: 2018-04-25