K.O (IL)
type: MusicGroup
genre: indie dance
popularity: 3
followers: 57
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf20cc0524b59e62f4ce838a9da6c861871258e0efcef97c66a7f4dbab3ae7481
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd474073-f1f0-47bd-b406-579865b71f99.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd474073-f1f0-47bd-b406-579865b71f99.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dd474073-f1f0-47bd-b406-579865b71f99
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf20cc0524b59e62f4ce838a9da6c861871258e0efcef97c66a7f4dbab3ae7481","name":"K.O (IL)","registered_at":"2026-06-21T05:27:26Z","symbol":"NIM1833822","token_address":"0x5af8edcfb1c1d5ce0dec2bc9fc62df5a16e62fb9","type":"artist","uuid":"dd474073-f1f0-47bd-b406-579865b71f99"}
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 0xf20cc0524b59e62f4ce838a9da6c861871258e0efcef97c66a7f4dbab3ae7481. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd474073-f1f0-47bd-b406-579865b71f99.json and https://artists.proofprofile.net/proofs/artist/dd474073-f1f0-47bd-b406-579865b71f99.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0xf20cc0524b59e62f4ce838a9da6c861871258e0efcef97c66a7f4dbab3ae7481","name":"K.O (IL)","registered_at":"2026-06-21T05:27:26Z","symbol":"NIM1833822","token_address":"0x5af8edcfb1c1d5ce0dec2bc9fc62df5a16e62fb9","type":"artist","uuid":"dd474073-f1f0-47bd-b406-579865b71f99"}
album: Acid Master
  type: MusicAlbum
  date published: 2022-10-28
album: Just Grooving
  type: MusicAlbum
  date published: 2025-02-14