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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a02c0e890a4bf6d9e011747a3a85896b51fd4469d3d9723767b5fd0c125f373. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ecf711de-15f4-4812-a8c1-cb5d34ae2a94.json and https://artists.proofprofile.net/proofs/artist/ecf711de-15f4-4812-a8c1-cb5d34ae2a94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Golden Age of Light Music: Four Decades of Light Music - Vol. 1, 1920s & 30s
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68489a77722f6e4ef917b6859bd59f4db0f51ee4f1e0bdbb3ea57b89a030854e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6630753407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042de7d1c4ef179430ffff1c11318a9b0c095fb0dede6083286889e4eaf51d18. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6630753411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1353b20185449c9e3d55cb6f7305c328103e8cd5365ee8ae14a54fa78d6af0. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6630753414.
The Golden Age of Light Music: British Cinema & Theatre Orchestras - Vol. 3
The Golden Age of Light Music: British Cinema and Theatre Orchestras - Vol. 4
Naughty Marietta: Ah! Sweet Mystery of Life
Baci Al Duio, Nocturne Op. 33: Kisses in The Dark
Prince of Wales Playhouse, Lewisham, Orchestra
'In Holiday Mood' Suite: The Illuminated Fete
The Voice of the Bells (An Alpine Fantasy)
Other Days (A Selection of Popular Melodies)
The Golden Age of Light Music: British Cinema & Theatre Orchestras - Volume 2
Charles Manning Granada Walthamstow Orchestra
Ke-Sa-Ko (Also known as 'Japanese Intermezzo')
Aunt Sally (Selection): You ought to see Sally on Sunday, If I had Napoleon's hat
'The Golden Age of Light Music: British Cinema and Theatre Orchestras
Show Boat Selection: Can't Help Lovin' Dat Man, Why Do I Love You, Ol' Man River
Doll Medley: Dainty Doll, Lonesome Little Doll, Rag Doll, Little Dutch Doll
Conversation Piece' (Selection): Brighton Parade, Danser, Danser, I'll follow my secret Heart, There's always something fishy about the French, Regency Rakes, Nevermore, Dear little Soldiers
The Cat And the Fiddle (Selection): Entr'acte, She didn't Day 'Yes', Dance, Try to forget
The Vagabond King' (Selection): only a Rose, Huguette Valse, Song of the Vagabonds
Fifinette, intermezzo Gavotte (Three Light Pieces Suite)
Fairies in the Moon (Intermezzo Entr'acte)
The Fleet's lit up Selection: They've a Way of Doing it in the Navy, Guess it must be the Spring, Little Miss Go-As-You-Please, How do you do Mr. Right?, It's d'Lovely?,
King of Jazz Selection: Ragamuffin Romeo, It happened in Monterey, I like to do things for You, Happy Feet
Zazà: Zazà piccolo zingera (Recorded 1939)
La Traviata: Di Provenza il mar, il suol (Recorded 1939)
Andrea Chénier: Nemico della Patria (Recorded 1939)
Il barbiere di Siviglia: Largo al factotum (Recorded 1939)
Otello: Credo in un Dio crudel (Recorded 1939)
Hérodiade: Vision Fugitive (Recorded 1934)
Hérodiade: C’en est fait...Salome demande (Recorded 1939)
Hamlet: O vin dissipe la tristesse (Recorded 1934)
In questa tombe oscura, WoO 133 (Recorded 1939)
Tannhäuser, WWV. 70: O du, mein holder Abenstern (Recorded 1932)
2 Songs after Heine, H.27: No. 2, E'en as a Lovely Flower (Recorded 1942)
John Charles Thomas: An American Classic
Traditional: Swing Low, Sweet Chariot (Recorded 1941)
Take Me Back to My Boots and Saddles (Recorded 1934)
Show Boat: Ol' Man River (Recorded 1932)
Traditional: Ev'ry Time I Feel de Spirit (Recorded 1941)
Traditional: Lord Randall (Recorded 1938)
Der Zigeunerbaron: Love Can Be Dreamed - Mine Alone (Recorded 1939)
Der Zigeunerbaron: Open Road (Recorded 1939)
Der Tapfere Soldat "The Chocolate Soldier": My Hero (Recorded 1941)
H.M.S Pinafore: When I was a lad (Recorded 1941)
Legendary Baritones (Recorded 1905-1941)
Le Jongleur de Notre-Dame: Légende de la sauge (Recorded 1928)
Falstaff: Quand' ero paggio (Recorded 1905)
La Traviata: Di Provenza il mar, il suol (Recorded 1911)
Un Ballo in Maschera: Eri tu (Recorded 1907)
Le Roi de Lahore: Promesse de mon avanir (Recorded 1906)
Otello: Credo in un Dio crudel (Recorded 1905)
Tosca: Già, mi dicon venal (Recorded 1910)
Ernani: O! de' verd' anni miei (Recorded 1916)
Falstaff: L'onore! Ladri! (Recorded 1921)
I due foscari: O vecchio cor, che batti (Recorded 1913)
Tannhäuser, WWV. 70: O du, mein holder Abendstern (Recorded 1918)
Hans Heiling: An jenem tag (Recorded 1917)
Zazà: Zazà, piccola zingara (Recorded 1919)
Andrea Chénier: Nemico della patria (Recorded 1939)
Il barbiere di Siviglia: Largo al factotum (Recorded 1930)
Der Wildschutz: Wie freundlich strahlt (Recorded 1928)
Attila: Dagli immortali vertici (Recorded 1941)