J Castle
type: MusicGroup
popularity: 61
followers: 9105
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f9046c1911c3a4565f1c5513e91e7005ed2b16b7ab16bf360bd1d719e0cdab7
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/f2c4323f-7f2e-436a-b80f-bc5a855009b3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f2c4323f-7f2e-436a-b80f-bc5a855009b3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f2c4323f-7f2e-436a-b80f-bc5a855009b3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7f9046c1911c3a4565f1c5513e91e7005ed2b16b7ab16bf360bd1d719e0cdab7","name":"J Castle","registered_at":"2026-06-12T13:33:16Z","symbol":"NIM0312835","token_address":"0xd921d3a748ba203e733b0fb910039c1cb86ce5ed","type":"artist","uuid":"f2c4323f-7f2e-436a-b80f-bc5a855009b3"}
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 0x7f9046c1911c3a4565f1c5513e91e7005ed2b16b7ab16bf360bd1d719e0cdab7. 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/f2c4323f-7f2e-436a-b80f-bc5a855009b3.json and https://artists.proofprofile.net/proofs/artist/f2c4323f-7f2e-436a-b80f-bc5a855009b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x7f9046c1911c3a4565f1c5513e91e7005ed2b16b7ab16bf360bd1d719e0cdab7","name":"J Castle","registered_at":"2026-06-12T13:33:16Z","symbol":"NIM0312835","token_address":"0xd921d3a748ba203e733b0fb910039c1cb86ce5ed","type":"artist","uuid":"f2c4323f-7f2e-436a-b80f-bc5a855009b3"}
album: El After
  type: MusicAlbum
  date published: 2024-08-29
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  type: MusicAlbum
  date published: 2024-12-05
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  type: MusicAlbum
  date published: 2025-02-05
album: Tokischa RMX
  type: MusicAlbum
  date published: 2025-10-09