1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98b0730cc6703d9ebead442fffca83b4e666c0d72e7d98d247cbcda87a3da05. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5efccf02-6fb1-42e1-90c9-d52331bde926.json and https://artists.proofprofile.net/proofs/artist/5efccf02-6fb1-42e1-90c9-d52331bde926.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
H.M.S. Pinafore, Act I, Pt. 1: We Sail the Ocean Blue - I'm Called Little Buttercup - The Nightingale Sighed - A Maiden Fair to See - I Am the Captain of the Pinafore - Sorry Her Lot Loves To
H.M.S. Pinafore, Act I, Pt. 2: Over the Bright Blue Sea - Sir Joseph's Barge is Seen - I Am the Monach of the Sea - When I Was a Lad - I Served a Term - A British Tar is a Soaring Soul - Refr
H.M.S. Pinafore, Act I, Pt. 3: Can I Survive The Overhearing - Ah Stay Your Hand - Oh Joy Oh Rapture Unforeseen - This Very Night - Entracte
H.M.S. Pinafore, Act II, Pt. 1: Fair Moon to Thee I Sing - Things Are Seldom What They Seem - The Hours Creep On Space
H.M.S. Pinafore, Act II, Pt. 2: Never Mind the Why and Wherefore - King Captain, I've Improtant Information - Carefully On Tiptoe Stealing - He is an Englishman - Farewell My Own - A Many Yea
The Pirates Of Penzance, Act I, No 2: When Frederic Was A Little Lad
The Pirates Of Penzance, Act I, No 3: Oh, Better Far To Live And Die
The Pirates Of Penzance, Act I, No 5: Climbing Over Rocky Mountain
The Pirates Of Penzance, Act I, No 7: Oh, Is There Not One Maiden Breast
The Pirates Of Penzance, Act I, No 8: Poor Wandering One
The Pirates Of Penzance, Act I, No 10: How Beautifully Blue The Sky
The Pirates Of Penzance, Act I, No 13: I AM The Very Model Of A Modern Major-General
The Pirates Of Penzance, Act II, No 8: Stay Frederic, Stay!
The Pirates Of Penzance, Act II, No 10: When A Felon's Not Engaged
The Pirates Of Penzance, Act II, No 12: With A Cat-Like Tread
The Mikado / Act 1: 11. So Please You, Sir, We Much Regret
Gilbert & Sullivan: The Mikado; Trial By Jury
The Pirates of Penzance or The Slave of Duty - Version without dialogue / Act 1: 9. Poor Wand'ring One!
Gilbert & Sullivan: The Pirates Of Penzance; Cox And Box
The Mikado / Act 1: 10. Three Little Maids From School Are We
The Mikado / Act 1: 12. Were You Not To Ko-Ko Plighted
The Mikado / Act 1: 15. The Threaten'd Cloud Has Pass'd Away
The Mikado / Act 1: 19. The Hour Of Gladness Is Dead And Gone
The Mikado / Act 1: 20. Ye Torrents Roar! Ye Tempests Howl!
The Mikado / Act 2: 22. The Sun Whose Rays Are All Ablaze
The Mikado / Act 2: 24. Here's A How-De-Do!
The Mikado / Act 2: 36. For He's Gone And Married Yum-Yum
The Pirates of Penzance or The Slave of Duty - Version without dialogue / Act 1: 7. Oh, Is There Not One Maiden Breast
The Pirates of Penzance or The Slave of Duty - Version without dialogue / Act 1: 8. Oh, Sisters, Deaf To Pity's Name, For Shame!
The Pirates of Penzance or The Slave of Duty - Version without dialogue / Act 1: 11. How Beautifully Blue The Sky
The Pirates of Penzance or The Slave of Duty - Version without dialogue / Act 1: 13. Hold, Monsters!
The Pirates of Penzance or The Slave of Duty - Version without dialogue / Act 1: 15. Oh, Men Of Dark And Dismal Fate
The Pirates of Penzance or The Slave of Duty - Version without dialogue / Act 1: 16. Hail Poetry, Thou Heav'n Born Maid!
The Pirates of Penzance or The Slave of Duty - Version without dialogue / Act 1: 17. You May Go, For You're At Liberty
The Pirates of Penzance or The Slave of Duty - Version without dialogue / Act 1: 18. Pray Observe The Magnanimity
The Pirates of Penzance or The Slave of Duty - Version without dialogue / Act 2: 19. Oh, Dry The Glist'Ning Tear
The Pirates of Penzance or The Slave of Duty - Version without dialogue / Act 2: 21. When The Foeman Bares His Steel