Sameer Kumar
type: MusicGroup
popularity: 20
followers: 138
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4a34bf52cdb660ef6060234165e9d69e723a19167e401a6d35c88e3552fa1ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953778
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953778
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb92145b-f632-4a8f-bc9a-04367b2551b4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb92145b-f632-4a8f-bc9a-04367b2551b4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bb92145b-f632-4a8f-bc9a-04367b2551b4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc4a34bf52cdb660ef6060234165e9d69e723a19167e401a6d35c88e3552fa1ae","name":"Sameer Kumar","registered_at":"2026-06-15T00:14:44Z","symbol":"NIM0621502","token_address":"0x0efca1708f273615a8d52eb051e3c9a65ae6446c","type":"artist","uuid":"bb92145b-f632-4a8f-bc9a-04367b2551b4"}
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 0xc4a34bf52cdb660ef6060234165e9d69e723a19167e401a6d35c88e3552fa1ae. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb92145b-f632-4a8f-bc9a-04367b2551b4.json and https://artists.proofprofile.net/proofs/artist/bb92145b-f632-4a8f-bc9a-04367b2551b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0xc4a34bf52cdb660ef6060234165e9d69e723a19167e401a6d35c88e3552fa1ae","name":"Sameer Kumar","registered_at":"2026-06-15T00:14:44Z","symbol":"NIM0621502","token_address":"0x0efca1708f273615a8d52eb051e3c9a65ae6446c","type":"artist","uuid":"bb92145b-f632-4a8f-bc9a-04367b2551b4"}
album: Love You
  type: MusicAlbum
  date published: 2014-01-01
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  type: MusicAlbum
  date published: 2020
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-01-28