Martyn Green
type: MusicGroup
genre: opera
description: right|thumb|Martyn Green in 1960 William Martin Green (22 April 1899 – 8 February 1975), known by his stage name, Martyn Green, was an English actor and singer. He is remembered for his performances a
popularity: 9
followers: 241
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf2949e9bb62df2e4e3d789416ae262394cc23ba6f0c75f421ac57ac520671bc3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953976
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953976
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2aedcc7e-933e-4100-a7bc-179ae7e7bc82.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2aedcc7e-933e-4100-a7bc-179ae7e7bc82.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2aedcc7e-933e-4100-a7bc-179ae7e7bc82
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:55:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf2949e9bb62df2e4e3d789416ae262394cc23ba6f0c75f421ac57ac520671bc3","name":"Martyn Green","registered_at":"2026-06-16T04:47:30Z","symbol":"NIM0942033","token_address":"0xfad0a18e47f74c428f9a5c732d8f95c2f2236a78","type":"artist","uuid":"2aedcc7e-933e-4100-a7bc-179ae7e7bc82"}
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 0xf2949e9bb62df2e4e3d789416ae262394cc23ba6f0c75f421ac57ac520671bc3. Chain 2 (Bitcoin): anchored in block 953976 (2026-06-16T16:55:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2aedcc7e-933e-4100-a7bc-179ae7e7bc82.json and https://artists.proofprofile.net/proofs/artist/2aedcc7e-933e-4100-a7bc-179ae7e7bc82.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:55:36Z
  text: {"copyright_id":"0xf2949e9bb62df2e4e3d789416ae262394cc23ba6f0c75f421ac57ac520671bc3","name":"Martyn Green","registered_at":"2026-06-16T04:47:30Z","symbol":"NIM0942033","token_address":"0xfad0a18e47f74c428f9a5c732d8f95c2f2236a78","type":"artist","uuid":"2aedcc7e-933e-4100-a7bc-179ae7e7bc82"}
album: Martyn Green's Gilbert & Sullivan
  type: MusicAlbum
  date published: 2000-01-01
album: Sullivan: Gondoliers (The) (D'Oyly Carte) (1950)
  type: MusicAlbum
  date published: 2002-07-12