Ahmed Zergui
type: MusicGroup
genre: raï
description: Ahmed Zergui (El Abbassi) (Arabic أحمد زرقي) (born 1948 in Sidi Bel Abbès, Algeria – 27 November 1983 in Tenira, Algeria) was an Algerian raï singer-songwriter. He was a pioneer in introducing the Wa
popularity: 2
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb2cb7d8a44b8f79f4f3eb73db4944a5b1d751f65f3a7de1829100dbb710e7cf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4699e313-4676-4988-b5e9-fe034e597f13.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4699e313-4676-4988-b5e9-fe034e597f13.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4699e313-4676-4988-b5e9-fe034e597f13
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdb2cb7d8a44b8f79f4f3eb73db4944a5b1d751f65f3a7de1829100dbb710e7cf","name":"Ahmed Zergui","registered_at":"2026-06-16T14:30:43Z","symbol":"NIM1081230","token_address":"0xd4296524af8d7a12ebc3cbaac70f8837dd6f901c","type":"artist","uuid":"4699e313-4676-4988-b5e9-fe034e597f13"}
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 0xdb2cb7d8a44b8f79f4f3eb73db4944a5b1d751f65f3a7de1829100dbb710e7cf. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4699e313-4676-4988-b5e9-fe034e597f13.json and https://artists.proofprofile.net/proofs/artist/4699e313-4676-4988-b5e9-fe034e597f13.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T07:39:10Z
  text: {"copyright_id":"0xdb2cb7d8a44b8f79f4f3eb73db4944a5b1d751f65f3a7de1829100dbb710e7cf","name":"Ahmed Zergui","registered_at":"2026-06-16T14:30:43Z","symbol":"NIM1081230","token_address":"0xd4296524af8d7a12ebc3cbaac70f8837dd6f901c","type":"artist","uuid":"4699e313-4676-4988-b5e9-fe034e597f13"}
album: Atani Hdiya
  type: MusicAlbum
  date published: 1990-07-19
album: Zahri Win
  type: MusicAlbum
  date published: 1992-08-10
album: Arwahi Liya
  type: MusicAlbum
  date published: 1995-08-26