Big B
type: MusicGroup
description: Big B may refer to: Amitabh Bachchan or Big B, Indian actor Big B Drugs, a defunct American drugstore chain Big B (film), a 2007 Malayalam film Big B (rapper), American rapper A character in th
popularity: 3
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ecb4c5efdb5bf4598d1b8d03711a8afe8f20f48360f7688e34acf9acc1fffae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5d2c9b01-cff0-4081-9828-e896e66fda5e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5d2c9b01-cff0-4081-9828-e896e66fda5e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5d2c9b01-cff0-4081-9828-e896e66fda5e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ecb4c5efdb5bf4598d1b8d03711a8afe8f20f48360f7688e34acf9acc1fffae","name":"Big B","registered_at":"2026-06-16T22:03:54Z","symbol":"NIM1189367","token_address":"0xc1302525cb7d35ecf38e17423beb024d70de67fc","type":"artist","uuid":"5d2c9b01-cff0-4081-9828-e896e66fda5e"}
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 0x2ecb4c5efdb5bf4598d1b8d03711a8afe8f20f48360f7688e34acf9acc1fffae. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d2c9b01-cff0-4081-9828-e896e66fda5e.json and https://artists.proofprofile.net/proofs/artist/5d2c9b01-cff0-4081-9828-e896e66fda5e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2ecb4c5efdb5bf4598d1b8d03711a8afe8f20f48360f7688e34acf9acc1fffae","name":"Big B","registered_at":"2026-06-16T22:03:54Z","symbol":"NIM1189367","token_address":"0xc1302525cb7d35ecf38e17423beb024d70de67fc","type":"artist","uuid":"5d2c9b01-cff0-4081-9828-e896e66fda5e"}