Matt Sagar
type: MusicGroup
popularity: 5
followers: 435
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d3d6bf688c02e7accdb665a66d08a1dc87a67cef87bc63f8bfcf8560ea5f861
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/61df8285-b93d-471b-b222-77ab825967a9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/61df8285-b93d-471b-b222-77ab825967a9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/61df8285-b93d-471b-b222-77ab825967a9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2d3d6bf688c02e7accdb665a66d08a1dc87a67cef87bc63f8bfcf8560ea5f861","name":"Matt Sagar","registered_at":"2026-06-16T23:45:48Z","symbol":"NIM1213674","token_address":"0xed0d8cc5e27926f817fd084f158255f80bf5e0cb","type":"artist","uuid":"61df8285-b93d-471b-b222-77ab825967a9"}
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 0x2d3d6bf688c02e7accdb665a66d08a1dc87a67cef87bc63f8bfcf8560ea5f861. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61df8285-b93d-471b-b222-77ab825967a9.json and https://artists.proofprofile.net/proofs/artist/61df8285-b93d-471b-b222-77ab825967a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2d3d6bf688c02e7accdb665a66d08a1dc87a67cef87bc63f8bfcf8560ea5f861","name":"Matt Sagar","registered_at":"2026-06-16T23:45:48Z","symbol":"NIM1213674","token_address":"0xed0d8cc5e27926f817fd084f158255f80bf5e0cb","type":"artist","uuid":"61df8285-b93d-471b-b222-77ab825967a9"}
album: Jupiter
  type: MusicAlbum
  date published: 2019-07-05
album: 17
  type: MusicAlbum
  date published: 2019-08-24
album: 17
  type: MusicAlbum
  date published: 2019-08-24
album: Killer Under
  type: MusicAlbum
  date published: 2020-03-10
album: Tragic Magic
  type: MusicAlbum
  date published: 2020-09-15
album: Stay Blind Make Time
  type: MusicAlbum
  date published: 2020-12-04
album: I Miss My Life
  type: MusicAlbum
  date published: 2022-04-20
album: Finally ** Forever Unpolished
  type: MusicAlbum
  date published: 2024-12-26