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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ac6e5eb38b1ef67fd290c175b6ed1798de3f921b5954435e2747b2ecf62bee. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93ab3afd-7bd1-4a02-9a43-b6b14b28be38.json and https://artists.proofprofile.net/proofs/artist/93ab3afd-7bd1-4a02-9a43-b6b14b28be38.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Best Soundtracks of Ennio Morricone (A Selection Of The Most Famous Soundtracks Of Ennio Morricone)
Once Upon a Time in the West - From "Once Upon a Time in the West"
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8708bada59972f2735949de6da49ab8f10b8483f398b82bb03f45e01bcb97ae. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ITDC81301465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0877f32725a1804545fb72ec552c665dedb3ffbd1a109c7e447387774a61acbe. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/ITDC81301464.
La musica di Ennio Morricone, Vol. 1 (Le Più Belle Colonne Sonore di Ennio Morricone)
Once Upon a Time in the West ("C'era una volta il West " The Music of Ennio Morricone)
Once Upon a Time in America ("C'era una Volta in America" The Music of Ennio Morricone)
Watch Chimes - Carillon (Theme from "For a Few Dollars More" Soundtrack)
Cinema Paradiso Main Theme (Nuovo Cinema Paradiso. The Music of Ennio Morricone)
For a Few Dollars More (Per Qualche Dollaro in Più - Whistle Theme)
Chi mai (Theme from "Le Professionnel" - The Music of Ennio Morricone)
Metti una sera a cena (Theme from "Metti una sera a Cena" - The Music of Ennio Morricone)
A Fistful of Dollars (Trumpet Theme, Per un Pugno di Dollari, The Music of Ennio Morricone)
Game of Thrones Theme (Main Theme from "Games of Thrones")
Il était une fois (La Musique d'Ennio Morricone, Vol. 1)
Once Upon a Time (The Music of Ennio Morricone, Vol. 1)
Iron Man 3 (Main Theme From "Iron Man 3")
La Musique d'Ennio Morricone, Vol. 1 (Musique de Film d'Ennio Morricone)
The Music Of Ennio Morricone, Vol. 1 (The Best Soundtracks of Ennio Morricone)
The Lightning Strike - What If This Storm Ends? (Soundtrack Theme from "Epic")
Gabriel's Oboe (Main Theme from "The Mission" soundtrack)
Captain Harlock Main Theme (From "Space Pirate Captain Harlock")
Captain Harlock Main Theme - From "Space Pirate Captain Harlock"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b67bceb4e1434894582a7d4f673232828c8452dc67461ecfcf9e29affa94b3. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/ITDC81400051.
The Ultimate Ennio Morricone Movie Themes (The Greatest Soundtracks)
Bossa Nova Timeless Hits, Vol. 1- The Best Songs in Bossa Nova
A Jazzy Christmas Wonderland: Big Band Jazzy Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4af9c749b46261007f7f828b801bc01f5490a8bcb81a0e4734a4038d262ab75. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMFME2444089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8251a01b25ff5b7f07ae95154bb4e0b7e781fbe0d7b63dd275482495ab2a3611. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QMFME2444099.
Nostalgic Grooves - The Vintage Jazz Experience - Vol.1
Nostalgic Grooves - The Vintage Jazz Experience - Vol.2
Vintage Chanson Française: 50s French Lounge & Musette, Vol. 1
Italian Swing Classics – The Italian Sound of the 1950s, Vol. 1
Vintage Chanson Française: 50s French Lounge & Musette, Vol. 2
Italian Swing Classics – The Italian Sound of the 1950s, Vol. 2
Italian Swing Classics – The Italian Sound of the 1950s, Vol. 3
Vintage Chanson Française: 50s French Lounge & Musette, Vol. 3
Italian Swing Classics – The Italian Sound of the 1950s, Vol. 4
Vintage Chanson Française – 1950s Love Songs
Italian Swing Classics – 1950’s Love Songs