II XII
type: MusicGroup
popularity: 8
followers: 176
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9cafe1e89a21bbd78d83a8e1cdd54e122f348577ba5b08c2d9e7d8509e52409
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/209ca94c-7728-42ee-bca0-37364e5235dd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/209ca94c-7728-42ee-bca0-37364e5235dd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/209ca94c-7728-42ee-bca0-37364e5235dd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe9cafe1e89a21bbd78d83a8e1cdd54e122f348577ba5b08c2d9e7d8509e52409","name":"II XII","registered_at":"2026-06-16T00:53:30Z","symbol":"NIM0886139","token_address":"0xf059a14ca0791dc89fb0e674743c08ea63bd80c0","type":"artist","uuid":"209ca94c-7728-42ee-bca0-37364e5235dd"}
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 0xe9cafe1e89a21bbd78d83a8e1cdd54e122f348577ba5b08c2d9e7d8509e52409. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/209ca94c-7728-42ee-bca0-37364e5235dd.json and https://artists.proofprofile.net/proofs/artist/209ca94c-7728-42ee-bca0-37364e5235dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xe9cafe1e89a21bbd78d83a8e1cdd54e122f348577ba5b08c2d9e7d8509e52409","name":"II XII","registered_at":"2026-06-16T00:53:30Z","symbol":"NIM0886139","token_address":"0xf059a14ca0791dc89fb0e674743c08ea63bd80c0","type":"artist","uuid":"209ca94c-7728-42ee-bca0-37364e5235dd"}
album: Stranger In My Room
  type: MusicAlbum
  date published: 2021-10-01
album: Goin So Dumb
  type: MusicAlbum
  date published: 2022-01-07
album: Pills & Potions
  type: MusicAlbum
  date published: 2022-03-25
album: What I Need
  type: MusicAlbum
  date published: 2023-06-30
album: Bad for You
  type: MusicAlbum
  date published: 2023-08-18