King Canvas
type: MusicGroup
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37d9c44504fdf78cb19b5ad5b66f74566d1f6e6ca4d70d1d83c5fad2b14c12e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/063574eb-6690-4377-8ea8-74c27348f3eb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/063574eb-6690-4377-8ea8-74c27348f3eb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/063574eb-6690-4377-8ea8-74c27348f3eb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x37d9c44504fdf78cb19b5ad5b66f74566d1f6e6ca4d70d1d83c5fad2b14c12e8","name":"King Canvas","registered_at":"2026-06-15T15:41:24Z","symbol":"NIM0754407","token_address":"0x2dcf9ae586d049271f7e4997d6e72c0c59494718","type":"artist","uuid":"063574eb-6690-4377-8ea8-74c27348f3eb"}
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 0x37d9c44504fdf78cb19b5ad5b66f74566d1f6e6ca4d70d1d83c5fad2b14c12e8. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/063574eb-6690-4377-8ea8-74c27348f3eb.json and https://artists.proofprofile.net/proofs/artist/063574eb-6690-4377-8ea8-74c27348f3eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:09:47Z
  text: {"copyright_id":"0x37d9c44504fdf78cb19b5ad5b66f74566d1f6e6ca4d70d1d83c5fad2b14c12e8","name":"King Canvas","registered_at":"2026-06-15T15:41:24Z","symbol":"NIM0754407","token_address":"0x2dcf9ae586d049271f7e4997d6e72c0c59494718","type":"artist","uuid":"063574eb-6690-4377-8ea8-74c27348f3eb"}
album: Checkmate
  type: MusicAlbum
  date published: 2024-04-26
album: Undefeated
  type: MusicAlbum
  date published: 2025-08-08