2MJ
type: MusicGroup
genre: rumba congolaise
popularity: 2
followers: 1018
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x796ea3afe994f6e88bc57b3911637d2d0550659975886c8b22554d9277e57b7d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/888c023f-6ae2-4e76-8ef1-45025525e3b9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/888c023f-6ae2-4e76-8ef1-45025525e3b9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/888c023f-6ae2-4e76-8ef1-45025525e3b9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
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 0x796ea3afe994f6e88bc57b3911637d2d0550659975886c8b22554d9277e57b7d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/888c023f-6ae2-4e76-8ef1-45025525e3b9.json and https://artists.proofprofile.net/proofs/artist/888c023f-6ae2-4e76-8ef1-45025525e3b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
album: Tsa Tsi Tso
  type: MusicAlbum
  date published: 2018-08-04
album: Haricot
  type: MusicAlbum
  date published: 2018-10-06
album: BOUPENDZA n’était pas hors-jeu
  type: MusicAlbum
  date published: 2019
album: On prélève
  type: MusicAlbum
  date published: 2019-02-14
album: Oublier (#IlFautQueçaNtcham1)
  type: MusicAlbum
  date published: 2019-05-17
album: Mabanga
  type: MusicAlbum
  date published: 2019-08-23
album: Mabanga
  type: MusicAlbum
  date published: 2019-11-15
album: Ngata
  type: MusicAlbum
  date published: 2019-12-24
album: Placements en or
  type: MusicAlbum
  date published: 2022-04-07