HART
type: MusicGroup
genre: boom bap
popularity: 3
followers: 198
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c496888f303f02e13ce4d1628b5d2ccf1b33cb718a2a42113d2b3b73a4eae78
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bdf103c0-a186-4885-aa4a-e851220d11c8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bdf103c0-a186-4885-aa4a-e851220d11c8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bdf103c0-a186-4885-aa4a-e851220d11c8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
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 0x7c496888f303f02e13ce4d1628b5d2ccf1b33cb718a2a42113d2b3b73a4eae78. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bdf103c0-a186-4885-aa4a-e851220d11c8.json and https://artists.proofprofile.net/proofs/artist/bdf103c0-a186-4885-aa4a-e851220d11c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
album: Matter
  type: MusicAlbum
  date published: 2017-05-28
album: The Reflective
  type: MusicAlbum
  date published: 2017-09-02
album: The Nature
  type: MusicAlbum
  date published: 2022-01-07
album: Vocabulary
  type: MusicAlbum
  date published: 2022-02-03
album: Key Tickler
  type: MusicAlbum
  date published: 2022-03-03
album: Cruisin
  type: MusicAlbum
  date published: 2022-05-09
album: 504
  type: MusicAlbum
  date published: 2022-07-29
album: Sugar Tea Time
  type: MusicAlbum
  date published: 2022-10-07
album: Moon Jazz
  type: MusicAlbum
  date published: 2022-10-30
album: Why
  type: MusicAlbum
  date published: 2023-09-15
album: Runnin
  type: MusicAlbum
  date published: 2023-10-06
album: Illusion
  type: MusicAlbum
  date published: 2023-10-27
album: Nowhere Fast
  type: MusicAlbum
  date published: 2023-11-17
album: Baku EP
  type: MusicAlbum
  date published: 2023-11-24
album: These Days
  type: MusicAlbum
  date published: 2024-11-21