Matt Williams
type: MusicGroup
popularity: 13
followers: 430
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97b44c681c43d6a035573bc1eb530aa723e62b8d9fd6140e8d5797ef8378d45f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d96d13e0-f644-4eec-b69e-e62924d1f36b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d96d13e0-f644-4eec-b69e-e62924d1f36b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d96d13e0-f644-4eec-b69e-e62924d1f36b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x97b44c681c43d6a035573bc1eb530aa723e62b8d9fd6140e8d5797ef8378d45f","name":"Matt Williams","registered_at":"2026-06-15T03:29:40Z","symbol":"NIM0668068","token_address":"0x0da5ab5bedbe4a26089901cfbe24a82802005ecf","type":"artist","uuid":"d96d13e0-f644-4eec-b69e-e62924d1f36b"}
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 0x97b44c681c43d6a035573bc1eb530aa723e62b8d9fd6140e8d5797ef8378d45f. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d96d13e0-f644-4eec-b69e-e62924d1f36b.json and https://artists.proofprofile.net/proofs/artist/d96d13e0-f644-4eec-b69e-e62924d1f36b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T12:56:12Z
  text: {"copyright_id":"0x97b44c681c43d6a035573bc1eb530aa723e62b8d9fd6140e8d5797ef8378d45f","name":"Matt Williams","registered_at":"2026-06-15T03:29:40Z","symbol":"NIM0668068","token_address":"0x0da5ab5bedbe4a26089901cfbe24a82802005ecf","type":"artist","uuid":"d96d13e0-f644-4eec-b69e-e62924d1f36b"}
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  type: MusicAlbum
  date published: 2019-05-22
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  type: MusicAlbum
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  type: MusicAlbum
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  date published: 2022-12-20
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  date published: 2023-01-18
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  type: MusicAlbum
  date published: 2024-04-16
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  type: MusicAlbum
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