Matt Kiichi Heafy
type: MusicGroup
popularity: 4
followers: 97
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2777a6dbe3ffaa4a3d09b84e800e882f64186eb96b0d7d137fceaee0ca33bca7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/297e06d0-a134-4a80-95f0-50551614f47b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/297e06d0-a134-4a80-95f0-50551614f47b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/297e06d0-a134-4a80-95f0-50551614f47b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2777a6dbe3ffaa4a3d09b84e800e882f64186eb96b0d7d137fceaee0ca33bca7","name":"Matt Kiichi Heafy","registered_at":"2026-06-16T03:56:52Z","symbol":"NIM0929945","token_address":"0xc2a7cba5e4d429870eb26c766240caff889d6af0","type":"artist","uuid":"297e06d0-a134-4a80-95f0-50551614f47b"}
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 0x2777a6dbe3ffaa4a3d09b84e800e882f64186eb96b0d7d137fceaee0ca33bca7. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/297e06d0-a134-4a80-95f0-50551614f47b.json and https://artists.proofprofile.net/proofs/artist/297e06d0-a134-4a80-95f0-50551614f47b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x2777a6dbe3ffaa4a3d09b84e800e882f64186eb96b0d7d137fceaee0ca33bca7","name":"Matt Kiichi Heafy","registered_at":"2026-06-16T03:56:52Z","symbol":"NIM0929945","token_address":"0xc2a7cba5e4d429870eb26c766240caff889d6af0","type":"artist","uuid":"297e06d0-a134-4a80-95f0-50551614f47b"}