MC HN
type: MusicGroup
genre: funk de bh
popularity: 8
followers: 37
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1783e8189f6d9e399dbd6c1b32d7eaf1699e16666376f70e0b80b37e2bfa4b2a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6dfdfa1-ade4-45c3-bd40-0440dab81bef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6dfdfa1-ade4-45c3-bd40-0440dab81bef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f6dfdfa1-ade4-45c3-bd40-0440dab81bef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1783e8189f6d9e399dbd6c1b32d7eaf1699e16666376f70e0b80b37e2bfa4b2a","name":"MC HN","registered_at":"2026-06-21T15:32:09Z","symbol":"NIM1961454","token_address":"0x726641397589cf7102cea3a7b1ef563acdb40793","type":"artist","uuid":"f6dfdfa1-ade4-45c3-bd40-0440dab81bef"}
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 0x1783e8189f6d9e399dbd6c1b32d7eaf1699e16666376f70e0b80b37e2bfa4b2a. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6dfdfa1-ade4-45c3-bd40-0440dab81bef.json and https://artists.proofprofile.net/proofs/artist/f6dfdfa1-ade4-45c3-bd40-0440dab81bef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
  text: {"copyright_id":"0x1783e8189f6d9e399dbd6c1b32d7eaf1699e16666376f70e0b80b37e2bfa4b2a","name":"MC HN","registered_at":"2026-06-21T15:32:09Z","symbol":"NIM1961454","token_address":"0x726641397589cf7102cea3a7b1ef563acdb40793","type":"artist","uuid":"f6dfdfa1-ade4-45c3-bd40-0440dab81bef"}
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  type: MusicAlbum
  date published: 2022-07-09
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-01-30
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  type: MusicAlbum
  date published: 2023-01-30