BLACKHAIR
type: MusicGroup
popularity: 3
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb58183d307ce66b8e38e4ad629c5632e3e6b8b06e2685519de30fde8faeeacd0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99476981-90f4-4d1c-9c99-2f4608d9b7ca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99476981-90f4-4d1c-9c99-2f4608d9b7ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/99476981-90f4-4d1c-9c99-2f4608d9b7ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
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 0xb58183d307ce66b8e38e4ad629c5632e3e6b8b06e2685519de30fde8faeeacd0. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99476981-90f4-4d1c-9c99-2f4608d9b7ca.json and https://artists.proofprofile.net/proofs/artist/99476981-90f4-4d1c-9c99-2f4608d9b7ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
album: BoOm!
  type: MusicAlbum
  date published: 2022-12-13
album: NO ROLE MODEL
  type: MusicAlbum
  date published: 2023-08-17
album: Eyes Rollin'
  type: MusicAlbum
  date published: 2024-06-11
album: Keep Talkin'
  type: MusicAlbum
  date published: 2024-06-18
album: Visitor
  type: MusicAlbum
  date published: 2024-11-17
album: Reply
  type: MusicAlbum
  date published: 2024-11-27
album: 2 LATE (feat. Yun Doah)
  type: MusicAlbum
  date published: 2025-07-03