Tupac Shakur
type: MusicGroup
description: Tupac Amaru Shakur ( ; born Lesane Parish Crooks; June 16, 1971 – September 13, 1996), also known by his stage names 2Pac and Makaveli, was an American rapper and actor. He was one of the most influen
popularity: 5
followers: 4911
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c9458f01244a2a9afdbc22bdcd928fae7a8909e3e9cb9fc76c493ef674f5432
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac5642cd-2352-4e91-ab9f-bfd47e6f241e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac5642cd-2352-4e91-ab9f-bfd47e6f241e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ac5642cd-2352-4e91-ab9f-bfd47e6f241e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7c9458f01244a2a9afdbc22bdcd928fae7a8909e3e9cb9fc76c493ef674f5432","name":"Tupac Shakur","registered_at":"2026-06-20T09:57:26Z","symbol":"NIM1585993","token_address":"0xebcdc7f75f170c678c7d8fae76ac3f0ae37132b0","type":"artist","uuid":"ac5642cd-2352-4e91-ab9f-bfd47e6f241e"}
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 0x7c9458f01244a2a9afdbc22bdcd928fae7a8909e3e9cb9fc76c493ef674f5432. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac5642cd-2352-4e91-ab9f-bfd47e6f241e.json and https://artists.proofprofile.net/proofs/artist/ac5642cd-2352-4e91-ab9f-bfd47e6f241e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0x7c9458f01244a2a9afdbc22bdcd928fae7a8909e3e9cb9fc76c493ef674f5432","name":"Tupac Shakur","registered_at":"2026-06-20T09:57:26Z","symbol":"NIM1585993","token_address":"0xebcdc7f75f170c678c7d8fae76ac3f0ae37132b0","type":"artist","uuid":"ac5642cd-2352-4e91-ab9f-bfd47e6f241e"}
album: All My Life
  type: MusicAlbum
  date published: 2023-02-12