Matt Caughthran
type: MusicGroup
description: Matt Caughthran (born February 13, 1979) is an American singer, best known as the frontman for Los Angeles–based punk band The Bronx and Mariachi El Bronx. In addition to The Bronx, Caughthran is invo
popularity: 4
followers: 161
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa18dd8d43fc2d326446fad05b0f0b68b05e68efb279fd620ecc357bef2f4af1e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce3099d8-c0de-4f19-a2be-a48fee0aff23.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce3099d8-c0de-4f19-a2be-a48fee0aff23.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce3099d8-c0de-4f19-a2be-a48fee0aff23
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa18dd8d43fc2d326446fad05b0f0b68b05e68efb279fd620ecc357bef2f4af1e","name":"Matt Caughthran","registered_at":"2026-06-20T23:56:17Z","symbol":"NIM1754864","token_address":"0x02ee42e4f430cd69920b287a0c771cbbeb1a278a","type":"artist","uuid":"ce3099d8-c0de-4f19-a2be-a48fee0aff23"}
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 0xa18dd8d43fc2d326446fad05b0f0b68b05e68efb279fd620ecc357bef2f4af1e. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce3099d8-c0de-4f19-a2be-a48fee0aff23.json and https://artists.proofprofile.net/proofs/artist/ce3099d8-c0de-4f19-a2be-a48fee0aff23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xa18dd8d43fc2d326446fad05b0f0b68b05e68efb279fd620ecc357bef2f4af1e","name":"Matt Caughthran","registered_at":"2026-06-20T23:56:17Z","symbol":"NIM1754864","token_address":"0x02ee42e4f430cd69920b287a0c771cbbeb1a278a","type":"artist","uuid":"ce3099d8-c0de-4f19-a2be-a48fee0aff23"}
album: How Lucky
  type: MusicAlbum
  date published: 2020-04-24