Ja'far
type: MusicGroup
genre: hyperpop
popularity: 3
followers: 108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x226655a78c87d391a6fb75ea3dda4b3b58121dcd5eee555357920ca0f1cea0ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ffcf482a-7732-4344-94f1-ac2b37e4d27a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ffcf482a-7732-4344-94f1-ac2b37e4d27a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ffcf482a-7732-4344-94f1-ac2b37e4d27a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
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 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 0x226655a78c87d391a6fb75ea3dda4b3b58121dcd5eee555357920ca0f1cea0ff. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffcf482a-7732-4344-94f1-ac2b37e4d27a.json and https://artists.proofprofile.net/proofs/artist/ffcf482a-7732-4344-94f1-ac2b37e4d27a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: 5G (feat. NeS & N.E.O)
  type: MusicAlbum
  date published: 2021-07-28
album: B=S99
  type: MusicAlbum
  date published: 2022-02-04
album: B=S99
  type: MusicAlbum
  date published: 2022-02-04
album: lingering
  type: MusicAlbum
  date published: 2022-12-27
album: lingering
  type: MusicAlbum
  date published: 2022-12-27
album: Roaming
  type: MusicAlbum
  date published: 2024-08-31
album: Roaming
  type: MusicAlbum
  date published: 2024-08-31
album: With U (feat. Yvng xan & coco.)
  type: MusicAlbum
  date published: 2024-09-13
album: With U (feat. Yvng xan & coco.)
  type: MusicAlbum
  date published: 2024-09-13
album: sukoshidake (feat. hiiragi)
  type: MusicAlbum
  date published: 2024-11-06
album: スコシダケ (feat. hiiragi)
  type: MusicAlbum
  date published: 2024-11-06
album: HERO
  type: MusicAlbum
  date published: 2025-03-28
album: HERO
  type: MusicAlbum
  date published: 2025-03-28