David Flower
type: MusicGroup
description: David Flower is a British astronomer and physical chemist, an emeritus professor in the Durham University Department of Physics. He is editor in chief of the Monthly Notices of the Royal Astronomical
popularity: 3
followers: 274
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a4b0db9486b70fcb3f82e2c3531869a32673614398b4f8e143685d7c21e4ee4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c92924f-5825-4015-84e0-3c4023797036.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c92924f-5825-4015-84e0-3c4023797036.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3c92924f-5825-4015-84e0-3c4023797036
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9a4b0db9486b70fcb3f82e2c3531869a32673614398b4f8e143685d7c21e4ee4","name":"David Flower","registered_at":"2026-06-16T10:39:30Z","symbol":"NIM1026083","token_address":"0x5630753af651b4eb556705f52ec6f6083f7f7db5","type":"artist","uuid":"3c92924f-5825-4015-84e0-3c4023797036"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4b0db9486b70fcb3f82e2c3531869a32673614398b4f8e143685d7c21e4ee4. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c92924f-5825-4015-84e0-3c4023797036.json and https://artists.proofprofile.net/proofs/artist/3c92924f-5825-4015-84e0-3c4023797036.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0x9a4b0db9486b70fcb3f82e2c3531869a32673614398b4f8e143685d7c21e4ee4","name":"David Flower","registered_at":"2026-06-16T10:39:30Z","symbol":"NIM1026083","token_address":"0x5630753af651b4eb556705f52ec6f6083f7f7db5","type":"artist","uuid":"3c92924f-5825-4015-84e0-3c4023797036"}
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