Anwesha Sarkar
type: MusicGroup
description: Anwesha Sarkar is an Indian food scientist who is a professor of colloids and surfaces at the University of Leeds. Her research considers the mechanisms that underpin biolubrication in soft biological
popularity: 4
followers: 8
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba18c37857c7c027bff2fc2747b89be1c15d1b9858489ce2a8472099bd297079
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953844
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953844
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00c91d0e-22e5-4822-a6f1-7486878896f4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00c91d0e-22e5-4822-a6f1-7486878896f4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/00c91d0e-22e5-4822-a6f1-7486878896f4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:28:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xba18c37857c7c027bff2fc2747b89be1c15d1b9858489ce2a8472099bd297079","name":"Anwesha Sarkar","registered_at":"2026-06-15T13:45:15Z","symbol":"NIM0726679","token_address":"0x24f8e3c8b1103b64641c730eb17749e9177b3fee","type":"artist","uuid":"00c91d0e-22e5-4822-a6f1-7486878896f4"}
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 0xba18c37857c7c027bff2fc2747b89be1c15d1b9858489ce2a8472099bd297079. Chain 2 (Bitcoin): anchored in block 953844 (2026-06-15T22:28:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00c91d0e-22e5-4822-a6f1-7486878896f4.json and https://artists.proofprofile.net/proofs/artist/00c91d0e-22e5-4822-a6f1-7486878896f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:28:08Z
  text: {"copyright_id":"0xba18c37857c7c027bff2fc2747b89be1c15d1b9858489ce2a8472099bd297079","name":"Anwesha Sarkar","registered_at":"2026-06-15T13:45:15Z","symbol":"NIM0726679","token_address":"0x24f8e3c8b1103b64641c730eb17749e9177b3fee","type":"artist","uuid":"00c91d0e-22e5-4822-a6f1-7486878896f4"}