Matthew Flowers
type: MusicGroup
description: Matthew Flowers (born 1956) is a British contemporary art dealer based in London and New York. He is the managing director of Flowers Gallery. Throughout his career he has been on boards and committee
popularity: 9
followers: 50
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54e085569c7eeb778d5a19c6cd56b8185f843aef8885730fef054f5190d56229
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954025
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954025
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/386c9cf6-e216-4f8d-a967-2bbba8fc36b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/386c9cf6-e216-4f8d-a967-2bbba8fc36b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/386c9cf6-e216-4f8d-a967-2bbba8fc36b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T00:32:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x54e085569c7eeb778d5a19c6cd56b8185f843aef8885730fef054f5190d56229","name":"Matthew Flowers","registered_at":"2026-06-16T09:13:08Z","symbol":"NIM1005470","token_address":"0xeaf4cdc1246e567a830759a4cdceb4ca3999edec","type":"artist","uuid":"386c9cf6-e216-4f8d-a967-2bbba8fc36b2"}
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 0x54e085569c7eeb778d5a19c6cd56b8185f843aef8885730fef054f5190d56229. Chain 2 (Bitcoin): anchored in block 954025 (2026-06-17T00:32:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/386c9cf6-e216-4f8d-a967-2bbba8fc36b2.json and https://artists.proofprofile.net/proofs/artist/386c9cf6-e216-4f8d-a967-2bbba8fc36b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T00:32:47Z
  text: {"copyright_id":"0x54e085569c7eeb778d5a19c6cd56b8185f843aef8885730fef054f5190d56229","name":"Matthew Flowers","registered_at":"2026-06-16T09:13:08Z","symbol":"NIM1005470","token_address":"0xeaf4cdc1246e567a830759a4cdceb4ca3999edec","type":"artist","uuid":"386c9cf6-e216-4f8d-a967-2bbba8fc36b2"}
album: Shadows
  type: MusicAlbum
  date published: 2016-05-23