Lotfi Jormena
type: MusicGroup
genre: raï
popularity: 2
followers: 172
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba30001ab96b14199844dc38605817c6e9222ca63a20020a21122c0e382735c5
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/b81db863-c783-433f-bb40-e06d9ccf9bdb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b81db863-c783-433f-bb40-e06d9ccf9bdb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b81db863-c783-433f-bb40-e06d9ccf9bdb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xba30001ab96b14199844dc38605817c6e9222ca63a20020a21122c0e382735c5","name":"Lotfi Jormena","registered_at":"2026-06-20T15:58:30Z","symbol":"NIM1647209","token_address":"0xec27d06b1a51de7b39579cb586253198ee58d109","type":"artist","uuid":"b81db863-c783-433f-bb40-e06d9ccf9bdb"}
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 0xba30001ab96b14199844dc38605817c6e9222ca63a20020a21122c0e382735c5. 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/b81db863-c783-433f-bb40-e06d9ccf9bdb.json and https://artists.proofprofile.net/proofs/artist/b81db863-c783-433f-bb40-e06d9ccf9bdb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xba30001ab96b14199844dc38605817c6e9222ca63a20020a21122c0e382735c5","name":"Lotfi Jormena","registered_at":"2026-06-20T15:58:30Z","symbol":"NIM1647209","token_address":"0xec27d06b1a51de7b39579cb586253198ee58d109","type":"artist","uuid":"b81db863-c783-433f-bb40-e06d9ccf9bdb"}
album: Bent Erroumya
  type: MusicAlbum
  date published: 2015
album: Ahl Echatayem
  type: MusicAlbum
  date published: 2016-08-31