2J
type: MusicGroup
popularity: 2
followers: 198
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x813b55dcbabb8f22c748fc813d8e1298bc971f286b7818fd100e98d2e2d15512
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953885
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953885
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0b2121b1-91cb-40ea-b12f-ba66262370ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0b2121b1-91cb-40ea-b12f-ba66262370ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0b2121b1-91cb-40ea-b12f-ba66262370ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:12:47Z
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 0x813b55dcbabb8f22c748fc813d8e1298bc971f286b7818fd100e98d2e2d15512. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b2121b1-91cb-40ea-b12f-ba66262370ba.json and https://artists.proofprofile.net/proofs/artist/0b2121b1-91cb-40ea-b12f-ba66262370ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
album: What's Wrong With the World?
  type: MusicAlbum
  date published: 2015-04-15
album: Cool Down
  type: MusicAlbum
  date published: 2016-09-01
album: Neptune
  type: MusicAlbum
  date published: 2019-10-31
album: Mind Set
  type: MusicAlbum
  date published: 2020-09-04
album: Bonne Question
  type: MusicAlbum
  date published: 2020-09-04
album: Rêveries
  type: MusicAlbum
  date published: 2020-09-23
album: Billie
  type: MusicAlbum
  date published: 2020-10-14
album: Privé
  type: MusicAlbum
  date published: 2020-11-28
album: Roland Garros
  type: MusicAlbum
  date published: 2020-12-19
album: Zdarissime
  type: MusicAlbum
  date published: 2021-04-21
album: Preaches
  type: MusicAlbum
  date published: 2021-05-02
album: Zdarrissime Rework
  type: MusicAlbum
  date published: 2021-05-21
album: It's Saturday
  type: MusicAlbum
  date published: 2021-11-19
album: Rappers de la Nuit (tribute)
  type: MusicAlbum
  date published: 2021-12-15
album: Craked
  type: MusicAlbum
  date published: 2022-07-20
album: Epic Journey
  type: MusicAlbum
  date published: 2022-12-14
album: Preaches
  type: MusicAlbum
  date published: 2022-12-28
album: Epic Journey
  type: MusicAlbum
  date published: 2023-03-23
album: Memory
  type: MusicAlbum
  date published: 2023-03-31
album: C 'est bon
  type: MusicAlbum
  date published: 2023-06-23
album: Sunday Mood
  type: MusicAlbum
  date published: 2023-06-24
album: 2J - Y'all From Paralimni?
  type: MusicAlbum
  date published: 2023-08-17
album: Brique jaune
  type: MusicAlbum
  date published: 2023-10-18