Knockout Kings
type: MusicGroup
genre: screamo
description: Knockout Kings is a series of boxing video games produced by EA Sports for various platforms yearly between 1998 and 2003, and was replaced by the Fight Night series in 2004. Before releasing the fir
popularity: 2
followers: 345
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeee5110035375e2804d501902af19c02ff98dc4037605f615a79e28e58c75483
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d1d4b08-612b-4db3-9e62-071750c95a6d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d1d4b08-612b-4db3-9e62-071750c95a6d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7d1d4b08-612b-4db3-9e62-071750c95a6d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeee5110035375e2804d501902af19c02ff98dc4037605f615a79e28e58c75483","name":"Knockout Kings","registered_at":"2026-06-17T09:36:13Z","symbol":"NIM1354510","token_address":"0x17bb923b156699dc5564b2f0e8eef2fdffdee5b3","type":"artist","uuid":"7d1d4b08-612b-4db3-9e62-071750c95a6d"}
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 0xeee5110035375e2804d501902af19c02ff98dc4037605f615a79e28e58c75483. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d1d4b08-612b-4db3-9e62-071750c95a6d.json and https://artists.proofprofile.net/proofs/artist/7d1d4b08-612b-4db3-9e62-071750c95a6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0xeee5110035375e2804d501902af19c02ff98dc4037605f615a79e28e58c75483","name":"Knockout Kings","registered_at":"2026-06-17T09:36:13Z","symbol":"NIM1354510","token_address":"0x17bb923b156699dc5564b2f0e8eef2fdffdee5b3","type":"artist","uuid":"7d1d4b08-612b-4db3-9e62-071750c95a6d"}
album: The Lion
  type: MusicAlbum
  date published: 2005
album: The Kid's Got Heart!
  type: MusicAlbum
  date published: 2007-08-06