احمد سعد
type: MusicGroup
genre: egyptian shaabi
genre: mahraganat
popularity: 8
followers: 1479
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb266b368c4cb577d636ee5f7b3fabf2d98e0fa7ef1b4a7d47b3416e8b69693b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/91633dd1-e34b-48ad-a4d4-5237b2a33330.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/91633dd1-e34b-48ad-a4d4-5237b2a33330.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/91633dd1-e34b-48ad-a4d4-5237b2a33330
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbb266b368c4cb577d636ee5f7b3fabf2d98e0fa7ef1b4a7d47b3416e8b69693b","name":"احمد سعد","registered_at":"2026-06-17T16:20:32Z","symbol":"NIM1450904","token_address":"0x0412ef42b773d733761b079ae4270ad0c0633606","type":"artist","uuid":"91633dd1-e34b-48ad-a4d4-5237b2a33330"}
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 0xbb266b368c4cb577d636ee5f7b3fabf2d98e0fa7ef1b4a7d47b3416e8b69693b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91633dd1-e34b-48ad-a4d4-5237b2a33330.json and https://artists.proofprofile.net/proofs/artist/91633dd1-e34b-48ad-a4d4-5237b2a33330.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xbb266b368c4cb577d636ee5f7b3fabf2d98e0fa7ef1b4a7d47b3416e8b69693b","name":"احمد سعد","registered_at":"2026-06-17T16:20:32Z","symbol":"NIM1450904","token_address":"0x0412ef42b773d733761b079ae4270ad0c0633606","type":"artist","uuid":"91633dd1-e34b-48ad-a4d4-5237b2a33330"}
album: سنين حياتي
  type: MusicAlbum
  date published: 2019-10-27
album: احمد سعد سيدنا النبي
  type: MusicAlbum
  date published: 2023-03-16