Big 40
type: MusicGroup
genre: southern hip hop
popularity: 15
followers: 373
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfef64320ad7fa7b2fd4c119881ed87abab106d8b9fa57d9ff2cff3676473b499
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a153383-b4bc-42e1-8b9d-eb2b5b39eca2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a153383-b4bc-42e1-8b9d-eb2b5b39eca2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2a153383-b4bc-42e1-8b9d-eb2b5b39eca2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfef64320ad7fa7b2fd4c119881ed87abab106d8b9fa57d9ff2cff3676473b499","name":"Big 40","registered_at":"2026-06-14T08:48:44Z","symbol":"NIM0400611","token_address":"0xc8a0c9e998628050c26b306863899e404c85b789","type":"artist","uuid":"2a153383-b4bc-42e1-8b9d-eb2b5b39eca2"}
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 0xfef64320ad7fa7b2fd4c119881ed87abab106d8b9fa57d9ff2cff3676473b499. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a153383-b4bc-42e1-8b9d-eb2b5b39eca2.json and https://artists.proofprofile.net/proofs/artist/2a153383-b4bc-42e1-8b9d-eb2b5b39eca2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0xfef64320ad7fa7b2fd4c119881ed87abab106d8b9fa57d9ff2cff3676473b499","name":"Big 40","registered_at":"2026-06-14T08:48:44Z","symbol":"NIM0400611","token_address":"0xc8a0c9e998628050c26b306863899e404c85b789","type":"artist","uuid":"2a153383-b4bc-42e1-8b9d-eb2b5b39eca2"}
album: Genius Fingers
  type: MusicAlbum
  date published: 2017-12-07
album: Free Nights N Weekends
  type: MusicAlbum
  date published: 2018-06-14
album: Flashy Roadrunners
  type: MusicAlbum
  date published: 2018-07-04