$Ha Hef
type: MusicGroup
popularity: 9
followers: 2616
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x24e273b955c9a3a652e2c35db9c01eceb3f344f0bc41cbff0983e23e99496b93
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/975b9a8a-037a-4570-9e1f-252ed353e7f7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/975b9a8a-037a-4570-9e1f-252ed353e7f7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/975b9a8a-037a-4570-9e1f-252ed353e7f7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x24e273b955c9a3a652e2c35db9c01eceb3f344f0bc41cbff0983e23e99496b93","name":"$Ha Hef","registered_at":"2026-06-17T18:45:48Z","symbol":"NIM1485567","token_address":"0x1193fea7358c3385ec0613fbeaacdb2f28dc682e","type":"artist","uuid":"975b9a8a-037a-4570-9e1f-252ed353e7f7"}
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 0x24e273b955c9a3a652e2c35db9c01eceb3f344f0bc41cbff0983e23e99496b93. 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/975b9a8a-037a-4570-9e1f-252ed353e7f7.json and https://artists.proofprofile.net/proofs/artist/975b9a8a-037a-4570-9e1f-252ed353e7f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x24e273b955c9a3a652e2c35db9c01eceb3f344f0bc41cbff0983e23e99496b93","name":"$Ha Hef","registered_at":"2026-06-17T18:45:48Z","symbol":"NIM1485567","token_address":"0x1193fea7358c3385ec0613fbeaacdb2f28dc682e","type":"artist","uuid":"975b9a8a-037a-4570-9e1f-252ed353e7f7"}
album: Super Villain
  type: MusicAlbum
  date published: 2015-08-18
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  type: MusicAlbum
  date published: 2015-08-30
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  type: MusicAlbum
  date published: 2016-08-18
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  type: MusicAlbum
  date published: 2017-01-09
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  type: MusicAlbum
  date published: 2017-01-31
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  type: MusicAlbum
  date published: 2017-02-02
album: Po' it out the Brick (Remix) [feat. Project Pat]
  type: MusicAlbum
  date published: 2017-04-20
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  type: MusicAlbum
  date published: 2017-06-02
album: Out the Mud
  type: MusicAlbum
  date published: 2017-07-17
album: Overnight
  type: MusicAlbum
  date published: 2018-04-30
album: 3rd Grade
  type: MusicAlbum
  date published: 2018-04-30
album: Kommunity Service
  type: MusicAlbum
  date published: 2018-05-11