Sombir Kathurwal
type: MusicGroup
genre: haryanvi pop
popularity: 16
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ff6eb4e695216639b03f6a21d1d7f22f19bdda5d89caf6bd9a485a5eb5df6fa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db028788-502c-494d-8b12-6b3cbda8ed24.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db028788-502c-494d-8b12-6b3cbda8ed24.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/db028788-502c-494d-8b12-6b3cbda8ed24
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4ff6eb4e695216639b03f6a21d1d7f22f19bdda5d89caf6bd9a485a5eb5df6fa","name":"Sombir Kathurwal","registered_at":"2026-06-15T03:31:16Z","symbol":"NIM0668453","token_address":"0x6a706ac5402474dfaa57416e6efeba873cac57d3","type":"artist","uuid":"db028788-502c-494d-8b12-6b3cbda8ed24"}
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 0x4ff6eb4e695216639b03f6a21d1d7f22f19bdda5d89caf6bd9a485a5eb5df6fa. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db028788-502c-494d-8b12-6b3cbda8ed24.json and https://artists.proofprofile.net/proofs/artist/db028788-502c-494d-8b12-6b3cbda8ed24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T12:56:12Z
  text: {"copyright_id":"0x4ff6eb4e695216639b03f6a21d1d7f22f19bdda5d89caf6bd9a485a5eb5df6fa","name":"Sombir Kathurwal","registered_at":"2026-06-15T03:31:16Z","symbol":"NIM0668453","token_address":"0x6a706ac5402474dfaa57416e6efeba873cac57d3","type":"artist","uuid":"db028788-502c-494d-8b12-6b3cbda8ed24"}
album: Kangan
  type: MusicAlbum
  date published: 2019-06-10
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  date published: 2020-03-18
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  type: MusicAlbum
  date published: 2021-02-01
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  type: MusicAlbum
  date published: 2021-03-15
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  type: MusicAlbum
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  type: MusicAlbum
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