Halmat Mhamad
type: MusicGroup
popularity: 6
followers: 167
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa9dd750e9c169ed09ef0ec1305018c8addfb0d26bdae6978f86cf2afe3b2c75
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953991
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953991
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e860fa9-43e1-4029-8496-8c97d624bfe8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e860fa9-43e1-4029-8496-8c97d624bfe8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2e860fa9-43e1-4029-8496-8c97d624bfe8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:47:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfa9dd750e9c169ed09ef0ec1305018c8addfb0d26bdae6978f86cf2afe3b2c75","name":"Halmat Mhamad","registered_at":"2026-06-16T05:48:57Z","symbol":"NIM0956728","token_address":"0x354dcf8b69a0fd95c6f60a8b75e98bd1b1a18dcb","type":"artist","uuid":"2e860fa9-43e1-4029-8496-8c97d624bfe8"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9dd750e9c169ed09ef0ec1305018c8addfb0d26bdae6978f86cf2afe3b2c75. Chain 2 (Bitcoin): anchored in block 953991 (2026-06-16T18:47:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e860fa9-43e1-4029-8496-8c97d624bfe8.json and https://artists.proofprofile.net/proofs/artist/2e860fa9-43e1-4029-8496-8c97d624bfe8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:47:23Z
  text: {"copyright_id":"0xfa9dd750e9c169ed09ef0ec1305018c8addfb0d26bdae6978f86cf2afe3b2c75","name":"Halmat Mhamad","registered_at":"2026-06-16T05:48:57Z","symbol":"NIM0956728","token_address":"0x354dcf8b69a0fd95c6f60a8b75e98bd1b1a18dcb","type":"artist","uuid":"2e860fa9-43e1-4029-8496-8c97d624bfe8"}
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  type: MusicAlbum
  date published: 2020-03-09
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  type: MusicAlbum
  date published: 2021-02-28
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  type: MusicAlbum
  date published: 2024-01-01
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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