Andy Mattr
type: MusicGroup
popularity: 2
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22d0cad8759e9b4453878bd41639df18c02857ce54d8cb84aa34074133079c0a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c6a3cdcc-a481-415d-af3a-b0734a206443.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c6a3cdcc-a481-415d-af3a-b0734a206443.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c6a3cdcc-a481-415d-af3a-b0734a206443
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x22d0cad8759e9b4453878bd41639df18c02857ce54d8cb84aa34074133079c0a","name":"Andy Mattr","registered_at":"2026-06-20T21:24:14Z","symbol":"NIM1719527","token_address":"0xd3acc7d30eb178b75df7b09dd60f092dceb5cbc0","type":"artist","uuid":"c6a3cdcc-a481-415d-af3a-b0734a206443"}
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 0x22d0cad8759e9b4453878bd41639df18c02857ce54d8cb84aa34074133079c0a. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6a3cdcc-a481-415d-af3a-b0734a206443.json and https://artists.proofprofile.net/proofs/artist/c6a3cdcc-a481-415d-af3a-b0734a206443.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x22d0cad8759e9b4453878bd41639df18c02857ce54d8cb84aa34074133079c0a","name":"Andy Mattr","registered_at":"2026-06-20T21:24:14Z","symbol":"NIM1719527","token_address":"0xd3acc7d30eb178b75df7b09dd60f092dceb5cbc0","type":"artist","uuid":"c6a3cdcc-a481-415d-af3a-b0734a206443"}