Hajja Hamdaouia
type: MusicGroup
genre: moroccan chaabi
genre: tropical music
popularity: 2
followers: 1485
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xed740a79def744b8b5dda87f3fe2aaf4330f09ab05b1d36b952a84508e07be6b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/729ce539-c109-4f4e-b5b1-4ce48c753c75.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/729ce539-c109-4f4e-b5b1-4ce48c753c75.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/729ce539-c109-4f4e-b5b1-4ce48c753c75
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xed740a79def744b8b5dda87f3fe2aaf4330f09ab05b1d36b952a84508e07be6b","name":"Hajja Hamdaouia","registered_at":"2026-06-17T05:29:20Z","symbol":"NIM1295664","token_address":"0xfbc857a691a233fe6a66d21f606880b4845639f1","type":"artist","uuid":"729ce539-c109-4f4e-b5b1-4ce48c753c75"}
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 0xed740a79def744b8b5dda87f3fe2aaf4330f09ab05b1d36b952a84508e07be6b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/729ce539-c109-4f4e-b5b1-4ce48c753c75.json and https://artists.proofprofile.net/proofs/artist/729ce539-c109-4f4e-b5b1-4ce48c753c75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xed740a79def744b8b5dda87f3fe2aaf4330f09ab05b1d36b952a84508e07be6b","name":"Hajja Hamdaouia","registered_at":"2026-06-17T05:29:20Z","symbol":"NIM1295664","token_address":"0xfbc857a691a233fe6a66d21f606880b4845639f1","type":"artist","uuid":"729ce539-c109-4f4e-b5b1-4ce48c753c75"}
album: Entia Arbia (Mono Version)
  type: MusicAlbum
  date published: 1900-01-01
album: Malou Aleya Ghodban (Mono Version)
  type: MusicAlbum
  date published: 1900-01-01
album: Yaddalem Dlamtini (Mono Version)
  type: MusicAlbum
  date published: 1900-01-01
album: Entia Arbia (Mono Version)
  type: MusicAlbum
  date published: 1900-01-01
album: Berdak Ya Hbibi Berdak (Mono Version)
  type: MusicAlbum
  date published: 1960
album: Entia Arbia (Mono Version)
  type: MusicAlbum
  date published: 1960-01-01
album: Barbès café
  type: MusicAlbum
  date published: 2011-01-01
album: Ayamna ayamna (The Best Of Aita)
  type: MusicAlbum
  date published: 2012-12-06