Nass Marrakech
type: MusicGroup
genre: gnawa
description: Nass Marrakech () is a Gnawa music group formed in 1991. They introduced instruments foreign to Gnawa music such as the djembe, tam-tam, mandolin, tabla and Afro-Cuban percussion. Line up "Moulay Sh
popularity: 2
followers: 353
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x09c4f1141439d35c7bbea888786494c0fe547b5d586d7e74f80eff43c53e920e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8c851f8-af53-4caf-b34a-75ccfebae1ce.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8c851f8-af53-4caf-b34a-75ccfebae1ce.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8c851f8-af53-4caf-b34a-75ccfebae1ce
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x09c4f1141439d35c7bbea888786494c0fe547b5d586d7e74f80eff43c53e920e","name":"Nass Marrakech","registered_at":"2026-06-21T16:13:11Z","symbol":"NIM1970761","token_address":"0x5516cfc231b93ac1ee5302f496258937c75582c8","type":"artist","uuid":"f8c851f8-af53-4caf-b34a-75ccfebae1ce"}
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 0x09c4f1141439d35c7bbea888786494c0fe547b5d586d7e74f80eff43c53e920e. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8c851f8-af53-4caf-b34a-75ccfebae1ce.json and https://artists.proofprofile.net/proofs/artist/f8c851f8-af53-4caf-b34a-75ccfebae1ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x09c4f1141439d35c7bbea888786494c0fe547b5d586d7e74f80eff43c53e920e","name":"Nass Marrakech","registered_at":"2026-06-21T16:13:11Z","symbol":"NIM1970761","token_address":"0x5516cfc231b93ac1ee5302f496258937c75582c8","type":"artist","uuid":"f8c851f8-af53-4caf-b34a-75ccfebae1ce"}
album: Sabil 'a' Salaam
  type: MusicAlbum
  date published: 2000-01-01
album: Bouderbala
  type: MusicAlbum
  date published: 2002