Matthew Crosby
type: MusicGroup
description: Matthew Crosby (born 12 February 1980) is an English comedian and writer. Early life Matthew Crosby was born in Bromley, London. He attended St Olave's Grammar School., and went on to study English
popularity: 13
followers: 654
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6871fb509ef61f2685abc4dfa1f02eaf759e5ee98a84b059348442205d7d0282
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953772
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953772
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c98cca85-ca53-4979-8dc1-09452a272e0f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c98cca85-ca53-4979-8dc1-09452a272e0f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c98cca85-ca53-4979-8dc1-09452a272e0f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T10:33:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6871fb509ef61f2685abc4dfa1f02eaf759e5ee98a84b059348442205d7d0282","name":"Matthew Crosby","registered_at":"2026-06-15T01:41:36Z","symbol":"NIM0642275","token_address":"0x0d972a0a035186549ae1171c45db80a7f4b6f94b","type":"artist","uuid":"c98cca85-ca53-4979-8dc1-09452a272e0f"}
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 0x6871fb509ef61f2685abc4dfa1f02eaf759e5ee98a84b059348442205d7d0282. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c98cca85-ca53-4979-8dc1-09452a272e0f.json and https://artists.proofprofile.net/proofs/artist/c98cca85-ca53-4979-8dc1-09452a272e0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T10:33:29Z
  text: {"copyright_id":"0x6871fb509ef61f2685abc4dfa1f02eaf759e5ee98a84b059348442205d7d0282","name":"Matthew Crosby","registered_at":"2026-06-15T01:41:36Z","symbol":"NIM0642275","token_address":"0x0d972a0a035186549ae1171c45db80a7f4b6f94b","type":"artist","uuid":"c98cca85-ca53-4979-8dc1-09452a272e0f"}
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  type: MusicAlbum
  date published: 2016-04-22
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  type: MusicAlbum
  date published: 2018-10-26
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  type: MusicAlbum
  date published: 2019-02-22
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  type: MusicAlbum
  date published: 2021-02-19
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  type: MusicAlbum
  date published: 2021-06-25
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  type: MusicAlbum
  date published: 2024-04-26