Bubba Sparxxx
type: MusicGroup
description: Warren Anderson Mathis (born March 6, 1977), better known by his stage name Bubba Sparxxx, is an American rapper. His 2001 single, "Ugly" (featuring Timbaland) peaked at number 15 on the Billboard Hot
popularity: 14
followers: 200
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a7dbb49a0c22eb4938fbd3d32248317969ee254452bedc63084796cfe5590df
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbdf813f-91cc-4823-8c91-ff5460eab680.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbdf813f-91cc-4823-8c91-ff5460eab680.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fbdf813f-91cc-4823-8c91-ff5460eab680
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0a7dbb49a0c22eb4938fbd3d32248317969ee254452bedc63084796cfe5590df","name":"Bubba Sparxxx","registered_at":"2026-06-15T06:54:11Z","symbol":"NIM0716893","token_address":"0xb97550b32b81014b023b471ea9948b77e60a9fbd","type":"artist","uuid":"fbdf813f-91cc-4823-8c91-ff5460eab680"}
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 0x0a7dbb49a0c22eb4938fbd3d32248317969ee254452bedc63084796cfe5590df. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbdf813f-91cc-4823-8c91-ff5460eab680.json and https://artists.proofprofile.net/proofs/artist/fbdf813f-91cc-4823-8c91-ff5460eab680.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0x0a7dbb49a0c22eb4938fbd3d32248317969ee254452bedc63084796cfe5590df","name":"Bubba Sparxxx","registered_at":"2026-06-15T06:54:11Z","symbol":"NIM0716893","token_address":"0xb97550b32b81014b023b471ea9948b77e60a9fbd","type":"artist","uuid":"fbdf813f-91cc-4823-8c91-ff5460eab680"}