Havergal Brian
type: MusicGroup
description: William Havergal Brian (29 January 187628 November 1972) was an English composer, librettist, and church organist. He is best known for having composed 32 symphonies—an unusually high number amongst
popularity: 18
followers: 1484
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf91cae13b0c14080cf03bfe0c70b966b9aadbb783f61c199be9bc3d3039363ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953610
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953610
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13510e10-b742-4e47-afff-71ec9a96f9ca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13510e10-b742-4e47-afff-71ec9a96f9ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/13510e10-b742-4e47-afff-71ec9a96f9ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T07:58:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf91cae13b0c14080cf03bfe0c70b966b9aadbb783f61c199be9bc3d3039363ae","name":"Havergal Brian","registered_at":"2026-06-14T06:27:43Z","symbol":"NIM0366958","token_address":"0xab6558f3a7bcca325a9e9aa23c8b1ee61300542a","type":"artist","uuid":"13510e10-b742-4e47-afff-71ec9a96f9ca"}
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 0xf91cae13b0c14080cf03bfe0c70b966b9aadbb783f61c199be9bc3d3039363ae. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13510e10-b742-4e47-afff-71ec9a96f9ca.json and https://artists.proofprofile.net/proofs/artist/13510e10-b742-4e47-afff-71ec9a96f9ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T07:58:09Z
  text: {"copyright_id":"0xf91cae13b0c14080cf03bfe0c70b966b9aadbb783f61c199be9bc3d3039363ae","name":"Havergal Brian","registered_at":"2026-06-14T06:27:43Z","symbol":"NIM0366958","token_address":"0xab6558f3a7bcca325a9e9aa23c8b1ee61300542a","type":"artist","uuid":"13510e10-b742-4e47-afff-71ec9a96f9ca"}
album: Brian: Symphony No. 3
  type: MusicAlbum
  date published: 1989-03-21
album: Brian: Symphony No. 18 / Violin Concerto / The Jolly Miller
  type: MusicAlbum
  date published: 2005-05-01
album: Brian: Symphony No. 1, 'The Gothic'
  type: MusicAlbum
  date published: 2004-05-01