OSCA
type: MusicGroup
genre: j-rap
popularity: 27
followers: 929
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e38678dbf79765960a44e721535a786241786a5bd20661b7df7162ce5cf7d21
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/edd09a70-bc3b-4e88-8783-c0e84bc03419.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/edd09a70-bc3b-4e88-8783-c0e84bc03419.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/edd09a70-bc3b-4e88-8783-c0e84bc03419
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 0x7e38678dbf79765960a44e721535a786241786a5bd20661b7df7162ce5cf7d21. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edd09a70-bc3b-4e88-8783-c0e84bc03419.json and https://artists.proofprofile.net/proofs/artist/edd09a70-bc3b-4e88-8783-c0e84bc03419.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: blackout (feat. KOPERU)
  type: MusicAlbum
  date published: 2019-03-29
album: Maserati
  type: MusicAlbum
  date published: 2020-01-28
album: Maserati
  type: MusicAlbum
  date published: 2020-01-28
album: Flow-er
  type: MusicAlbum
  date published: 2020-04-15
album: Flow-er
  type: MusicAlbum
  date published: 2020-04-15
album: Dead Cat Walking -Live in Deadman Wonderland pt.2-
  type: MusicAlbum
  date published: 2023-09-29
album: Dead Cat Walking -Live in Deadman Wonderland pt.2-
  type: MusicAlbum
  date published: 2023-09-29
album: Afterglow
  type: MusicAlbum
  date published: 2023-11-15
album: Afterglow
  type: MusicAlbum
  date published: 2023-11-15