Sayantani DasGupta
type: MusicGroup
description: Sayantani DasGupta (born 1970)From:The Family of Women , is an American physician and author of Indian (Bengali) heritage. Early life and education DasGupta grew up in Ohio and New Jersey and comple
popularity: 13
followers: 117
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35418ef73e1acc20e9b7cb67527e7e0498745823a27871a86955efc4c15bce1b
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/d39058a9-9d00-48c4-8b74-d12cfcfe9512.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d39058a9-9d00-48c4-8b74-d12cfcfe9512.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d39058a9-9d00-48c4-8b74-d12cfcfe9512
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x35418ef73e1acc20e9b7cb67527e7e0498745823a27871a86955efc4c15bce1b","name":"Sayantani DasGupta","registered_at":"2026-06-15T02:46:43Z","symbol":"NIM0657824","token_address":"0x73f1fb543de837ed8f5b6472b64f60e37cf0e809","type":"artist","uuid":"d39058a9-9d00-48c4-8b74-d12cfcfe9512"}
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 0x35418ef73e1acc20e9b7cb67527e7e0498745823a27871a86955efc4c15bce1b. 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/d39058a9-9d00-48c4-8b74-d12cfcfe9512.json and https://artists.proofprofile.net/proofs/artist/d39058a9-9d00-48c4-8b74-d12cfcfe9512.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0x35418ef73e1acc20e9b7cb67527e7e0498745823a27871a86955efc4c15bce1b","name":"Sayantani DasGupta","registered_at":"2026-06-15T02:46:43Z","symbol":"NIM0657824","token_address":"0x73f1fb543de837ed8f5b6472b64f60e37cf0e809","type":"artist","uuid":"d39058a9-9d00-48c4-8b74-d12cfcfe9512"}
album: The Serpent's Secret [Kiranmala and the Kingdom Beyond, Book 1 (Unabridged)]
  type: MusicAlbum
  date published: 2018-03-27
album: Game of Stars [Kiranmala and the Kingdom Beyond Series, Book 2 (Unabridged)]
  type: MusicAlbum
  date published: 2019-02-26
album: Chaos Curse [Kiranmala and the Kingdom Beyond, Book 3 (Unabridged)]
  type: MusicAlbum
  date published: 2020-03-03