Cheba Maria
type: MusicGroup
description: thumb|Cheba Maria Khadija Zine, commonly known as Cheba Maria, is a Moroccan singer and songwriter of Raï music. Born in Casablanca, she is based in Toulouse, France. Cheba Maria grew up in a cultur
popularity: 3
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa40b3a3cde23a7a99337edece38c7e4dbf96c427d2ab8b4f26e6374eaa921193
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b6a17ae2-da18-482d-b5c0-9a734a41faac.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b6a17ae2-da18-482d-b5c0-9a734a41faac.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b6a17ae2-da18-482d-b5c0-9a734a41faac
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa40b3a3cde23a7a99337edece38c7e4dbf96c427d2ab8b4f26e6374eaa921193","name":"Cheba Maria","registered_at":"2026-06-20T15:32:11Z","symbol":"NIM1642146","token_address":"0x6f1ff922ecebc6cc2dbb471b8df8a8e1a12de365","type":"artist","uuid":"b6a17ae2-da18-482d-b5c0-9a734a41faac"}
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 0xa40b3a3cde23a7a99337edece38c7e4dbf96c427d2ab8b4f26e6374eaa921193. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6a17ae2-da18-482d-b5c0-9a734a41faac.json and https://artists.proofprofile.net/proofs/artist/b6a17ae2-da18-482d-b5c0-9a734a41faac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xa40b3a3cde23a7a99337edece38c7e4dbf96c427d2ab8b4f26e6374eaa921193","name":"Cheba Maria","registered_at":"2026-06-20T15:32:11Z","symbol":"NIM1642146","token_address":"0x6f1ff922ecebc6cc2dbb471b8df8a8e1a12de365","type":"artist","uuid":"b6a17ae2-da18-482d-b5c0-9a734a41faac"}