Rupam Das
type: MusicGroup
popularity: 5
followers: 1046
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8fc2f4dc10acd2ae94a5f264b6919c42b4642adc6cac9be3f7a35643d0b5a687
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953882
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953882
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a028d4d-23bb-4608-a5c8-acaec2580d20.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a028d4d-23bb-4608-a5c8-acaec2580d20.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0a028d4d-23bb-4608-a5c8-acaec2580d20
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T03:13:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8fc2f4dc10acd2ae94a5f264b6919c42b4642adc6cac9be3f7a35643d0b5a687","name":"Rupam Das","registered_at":"2026-06-15T17:14:30Z","symbol":"NIM0776633","token_address":"0x8dcb6fd89ff4ed1f03750160bda27a3282eb8dc1","type":"artist","uuid":"0a028d4d-23bb-4608-a5c8-acaec2580d20"}
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 0x8fc2f4dc10acd2ae94a5f264b6919c42b4642adc6cac9be3f7a35643d0b5a687. Chain 2 (Bitcoin): anchored in block 953882 (2026-06-16T03:13:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a028d4d-23bb-4608-a5c8-acaec2580d20.json and https://artists.proofprofile.net/proofs/artist/0a028d4d-23bb-4608-a5c8-acaec2580d20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T03:13:34Z
  text: {"copyright_id":"0x8fc2f4dc10acd2ae94a5f264b6919c42b4642adc6cac9be3f7a35643d0b5a687","name":"Rupam Das","registered_at":"2026-06-15T17:14:30Z","symbol":"NIM0776633","token_address":"0x8dcb6fd89ff4ed1f03750160bda27a3282eb8dc1","type":"artist","uuid":"0a028d4d-23bb-4608-a5c8-acaec2580d20"}
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