Matthew Heyer
type: MusicGroup
genre: tropical house
popularity: 19
followers: 800
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x934e7b2baa7e075cadfbd671461ae295ef6a39734b815892a7594d98ecc50f40
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4332eb49-68fc-4eff-8715-ae688a445d79.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4332eb49-68fc-4eff-8715-ae688a445d79.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4332eb49-68fc-4eff-8715-ae688a445d79
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x934e7b2baa7e075cadfbd671461ae295ef6a39734b815892a7594d98ecc50f40","name":"Matthew Heyer","registered_at":"2026-06-14T11:32:23Z","symbol":"NIM0439633","token_address":"0x37cd00ec99af6f680f0fd6a8dfd1665355174a8c","type":"artist","uuid":"4332eb49-68fc-4eff-8715-ae688a445d79"}
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 0x934e7b2baa7e075cadfbd671461ae295ef6a39734b815892a7594d98ecc50f40. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4332eb49-68fc-4eff-8715-ae688a445d79.json and https://artists.proofprofile.net/proofs/artist/4332eb49-68fc-4eff-8715-ae688a445d79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x934e7b2baa7e075cadfbd671461ae295ef6a39734b815892a7594d98ecc50f40","name":"Matthew Heyer","registered_at":"2026-06-14T11:32:23Z","symbol":"NIM0439633","token_address":"0x37cd00ec99af6f680f0fd6a8dfd1665355174a8c","type":"artist","uuid":"4332eb49-68fc-4eff-8715-ae688a445d79"}
album: We Are Alive
  type: MusicAlbum
  date published: 2016-09-12
album: We Are Alive
  type: MusicAlbum
  date published: 2016-10-21
album: My Melody
  type: MusicAlbum
  date published: 2016-11-18
album: My Melody
  type: MusicAlbum
  date published: 2016-11-18
album: Day After Day
  type: MusicAlbum
  date published: 2017-01-13
album: Day After Day
  type: MusicAlbum
  date published: 2017-01-13
album: Day After Day
  type: MusicAlbum
  date published: 2017-01-13
album: Fire
  type: MusicAlbum
  date published: 2017-03-24
album: Fire
  type: MusicAlbum
  date published: 2017-03-24
album: Fire (feat. Grace Ackerman) - Single
  type: MusicAlbum
  date published: 2017-03-24
album: Fire (Gunjah Remix)
  type: MusicAlbum
  date published: 2017-04-14
album: Fire (Gunjah Remix)
  type: MusicAlbum
  date published: 2017-04-14
album: Fire (Summer Edit)
  type: MusicAlbum
  date published: 2017-05-12
album: Fire (Acoustic Version)
  type: MusicAlbum
  date published: 2017-05-19
album: Better Love
  type: MusicAlbum
  date published: 2017-08-25
album: Better Love feat. River
  type: MusicAlbum
  date published: 2017-08-25
album: Better Love (feat. River)
  type: MusicAlbum
  date published: 2017-08-25
album: Yellow
  type: MusicAlbum
  date published: 2018-09-21
album: Yellow
  type: MusicAlbum
  date published: 2018-09-21