J-Cast
type: MusicGroup
popularity: 5
followers: 87
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x931d89693a686ad68f80a5bf9ef5febf6eb6ee489ae8ca57ed394c31cbde64bb
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/e920acff-001d-42ba-aa83-69591dcf0dea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e920acff-001d-42ba-aa83-69591dcf0dea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e920acff-001d-42ba-aa83-69591dcf0dea
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931d89693a686ad68f80a5bf9ef5febf6eb6ee489ae8ca57ed394c31cbde64bb. 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/e920acff-001d-42ba-aa83-69591dcf0dea.json and https://artists.proofprofile.net/proofs/artist/e920acff-001d-42ba-aa83-69591dcf0dea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: Break It Down
  type: MusicAlbum
  date published: 2008-04-25
album: Joy and Pain
  type: MusicAlbum
  date published: 2015-05-12
album: Suicide [Prod. D. Lynch] (feat. Fetty Wap)
  type: MusicAlbum
  date published: 2016-08-05
album: The Way
  type: MusicAlbum
  date published: 2016-09-09
album: Wine to This
  type: MusicAlbum
  date published: 2017-08-01
album: Todas Mienten
  type: MusicAlbum
  date published: 2024-05-28
album: Bandida
  type: MusicAlbum
  date published: 2024-08-21