HLNDR
type: MusicGroup
popularity: 2
followers: 108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f56d4b238e1bfb4da2a7e5c8da80c2a3c5f5243643631aae81ed2d55f4a4452
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbc1ed01-3b40-4d9c-a9e7-dce04efa6d2e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbc1ed01-3b40-4d9c-a9e7-dce04efa6d2e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fbc1ed01-3b40-4d9c-a9e7-dce04efa6d2e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
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 0x2f56d4b238e1bfb4da2a7e5c8da80c2a3c5f5243643631aae81ed2d55f4a4452. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbc1ed01-3b40-4d9c-a9e7-dce04efa6d2e.json and https://artists.proofprofile.net/proofs/artist/fbc1ed01-3b40-4d9c-a9e7-dce04efa6d2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
album: Remember
  type: MusicAlbum
  date published: 2021-11-08
album: Heartaches
  type: MusicAlbum
  date published: 2023-01-14
album: Bring Me
  type: MusicAlbum
  date published: 2023-01-20
album: MINI-GRUV III
  type: MusicAlbum
  date published: 2023-12-29
album: BLOCK
  type: MusicAlbum
  date published: 2024-06-12
album: Mama Said Knock You Out
  type: MusicAlbum
  date published: 2024-08-24
album: Ride Clean / Off Limits
  type: MusicAlbum
  date published: 2024-09-13