Samujjwal Dewan
type: MusicGroup
popularity: 2
followers: 46
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcabdc9fb42042831f261efe0c8da7e29391f782fbeb1abbc24c1bdac1d3f4e71
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/660d08d8-fa7c-4345-9247-0d4f3b8a9953.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/660d08d8-fa7c-4345-9247-0d4f3b8a9953.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/660d08d8-fa7c-4345-9247-0d4f3b8a9953
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcabdc9fb42042831f261efe0c8da7e29391f782fbeb1abbc24c1bdac1d3f4e71","name":"Samujjwal Dewan","registered_at":"2026-06-17T01:06:48Z","symbol":"NIM1232989","token_address":"0x6bdf77e2486e635b1b3e4344b55a2e33b184473a","type":"artist","uuid":"660d08d8-fa7c-4345-9247-0d4f3b8a9953"}
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 0xcabdc9fb42042831f261efe0c8da7e29391f782fbeb1abbc24c1bdac1d3f4e71. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/660d08d8-fa7c-4345-9247-0d4f3b8a9953.json and https://artists.proofprofile.net/proofs/artist/660d08d8-fa7c-4345-9247-0d4f3b8a9953.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xcabdc9fb42042831f261efe0c8da7e29391f782fbeb1abbc24c1bdac1d3f4e71","name":"Samujjwal Dewan","registered_at":"2026-06-17T01:06:48Z","symbol":"NIM1232989","token_address":"0x6bdf77e2486e635b1b3e4344b55a2e33b184473a","type":"artist","uuid":"660d08d8-fa7c-4345-9247-0d4f3b8a9953"}
album: Twre Pebar Azai
  type: MusicAlbum
  date published: 2024-04-29
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  type: MusicAlbum
  date published: 2024-06-28
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  type: MusicAlbum
  date published: 2024-10-18
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  type: MusicAlbum
  date published: 2025-01-10
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  type: MusicAlbum
  date published: 2025-04-01