Rajnandini
type: MusicGroup
description: Rajnandini () is a Bengali romantic drama film directed by Sukhen Das. This film was released in 1980 under the banner of S.D Films. Cast Uttam Kumar Bikash Roy Subhendu Chatterjee Sabitri Chatte
popularity: 19
followers: 113
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x03beb67ff2ec7e4b8340d0856d0a0fa896cf81949c1bfdb3a0b4c98e788a16c0
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/d3efd1c0-5acd-4c10-a2a3-957a0d8958df.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3efd1c0-5acd-4c10-a2a3-957a0d8958df.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d3efd1c0-5acd-4c10-a2a3-957a0d8958df
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
additional property: OTSCanonicalRecord
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 0x03beb67ff2ec7e4b8340d0856d0a0fa896cf81949c1bfdb3a0b4c98e788a16c0. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3efd1c0-5acd-4c10-a2a3-957a0d8958df.json and https://artists.proofprofile.net/proofs/artist/d3efd1c0-5acd-4c10-a2a3-957a0d8958df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
album: Kahaku Naucha Swargadwara
  type: MusicAlbum
  date published: 2023-06-11
album: Kaladhana
  type: MusicAlbum
  date published: 2023-09-15
album: He Jagtarini Maiya
  type: MusicAlbum
  date published: 2025-03-28