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 0x59c9bbc996f7a762cc8c784f81733a5d7dc1306b0d7784ae2373f07f7953c680. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/796759a5-5b67-41a8-891b-2975e5eadb19.json and https://artists.proofprofile.net/proofs/artist/796759a5-5b67-41a8-891b-2975e5eadb19.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cinema: The Silver Screen Classics Collection
Strauss, R: Also sprach Zarathustra, Op. 30: Introduction
Mahler: Symphony No. 5 in C-Sharp Minor: IV. Adagietto. Sehr langsam (Conclusion)
Saint-Saëns: Le carnaval des animaux: VII. Aquarium
The Windmills of Your Mind (From "The Thomas Crown Affair")
Orchestra dell'Accademia Nazionale di Santa Cecilia
Thème principal (du film "La Liste de Schindler")
Morricone: Gabriel's Oboe (From "The Mission")
Myers: Cavatina (From "The Deer Hunter")
Debussy: Suite bergamasque, CD 82, L. 75: III. Clair de lune
I Had a Farm in Africa (From "Out of Africa")
McCartney, Linda & Paul: Live and Let Die
Bernstein: Symphonic Dances from West Side Story: No. 4, Mambo
Wagner: Die Walküre, Act 3: Ride of the Valkyries
Giacchino: Mission Impossible 3: Schifrin and Variations
Mozart: Clarinet Concerto in A Major, K. 622: II. Adagio
Mozart: Piano Concerto No. 21 in C Major, K. 467: II. Andante
Steiner: Gone with the Wind: Tara’s Theme
Verdi: La forza del destino: Overture (Excerpt)
Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
Main Theme (From "Les choses de la vie")
Chaplin: Smile (From "Modern Times") [Arr. Ogermann for Violin and Piano]
Shostakovich: Suite from The Gadfly, Op. 97a: VIII. Romance (Arr. Atovmyan for Violin and Piano)
Mascagni: Cavalleria rusticana: Intermezzo
Silvestri: Back to the Future: Main Title
Tchaikovsky: Swan Lake, Op. 20, Act II: No. 13d, Dance of the Swans. Dance of the Little Swans
Tchaikovsky: Le lac des cygnes, Op. 20, Act II: No. 10, Scène. Moderato
Morricone: Once Upon a Time in the West: Man with a Harmonica
Mozart: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio (Excerpt)
Shore: The Lord of the Rings: The Fellowship of the Ring - Concerning Hobbits
Chaplin: Modern Times: Smile (Arr. Quint & Coleman for Violin and Piano)
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1067223b377a20f41f9edb5b4f45f007cf308325c54325522bc57cd5615587aa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4zbUGTfzRCrbkKgBjLV0A7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4zbUGTfzRCrbkKgBjLV0A7.
Cavatina - from "The Deer Hunter (Voyage au bout de l'enfer)"
{"copyright_id":"0xa30dd9f19209ae505ea510a712caacd72b3b2e49b991f31ba568ffa52a56e6f8","isrc":"FR9W12126555","name":"Cavatina - from \"The Deer Hunter (Voyage au bout de l'enfer)\"","registered_at":"2026-06-23T10:28:19Z","spotify_id":"24n95t5fqf9Yx9tKm7uouU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30dd9f19209ae505ea510a712caacd72b3b2e49b991f31ba568ffa52a56e6f8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/24n95t5fqf9Yx9tKm7uouU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24n95t5fqf9Yx9tKm7uouU.
Cavatina (Arr. for Guitar by John Williams)
{"copyright_id":"0xd79794e79165b54751e23c2ccc07be6c07599509f310bd34a69f64130174cf97","isrc":"USSM12301032","name":"Cavatina (Arr. for Guitar by John Williams)","registered_at":"2026-06-09T16:24:11Z","spotify_id":"1Sbm2u3NOMfyX88upgYeLd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79794e79165b54751e23c2ccc07be6c07599509f310bd34a69f64130174cf97. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Sbm2u3NOMfyX88upgYeLd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Sbm2u3NOMfyX88upgYeLd.
{"copyright_id":"0xe5293b0f2f42b4b601003b8f905fcaba0ccf72c5cb2ced4b5744fbc8179f2954","isrc":"GBAYC1900055","name":"Myers: Cavatina (From \"The Deer Hunter\")","registered_at":"2026-06-07T06:17:51Z","spotify_id":"2loBuv5GnBGWpEvlVrCiyg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5293b0f2f42b4b601003b8f905fcaba0ccf72c5cb2ced4b5744fbc8179f2954. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2loBuv5GnBGWpEvlVrCiyg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2loBuv5GnBGWpEvlVrCiyg.
{"copyright_id":"0x67800f39eb2f318ec5d8d356c4e9f931f72b44b1a83c08e2681a07d9e553229e","isrc":"DKABC9511701","name":"Cavatina (From \"The Deer Hunter\")","registered_at":"2026-06-04T12:32:41Z","spotify_id":"2DHXHiRMRsa5UdP56zrEeh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67800f39eb2f318ec5d8d356c4e9f931f72b44b1a83c08e2681a07d9e553229e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2DHXHiRMRsa5UdP56zrEeh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2DHXHiRMRsa5UdP56zrEeh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43db1a5734254c79198b566ad60419ea3e225776da2564383c90bd47dc48e05. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3pVzCuVdWrCOTEX6EZSoMy.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3pVzCuVdWrCOTEX6EZSoMy.
{"copyright_id":"0xe5293b0f2f42b4b601003b8f905fcaba0ccf72c5cb2ced4b5744fbc8179f2954","isrc":"GBAYC1900055","name":"Myers: Cavatina (From \"The Deer Hunter\")","registered_at":"2026-06-07T06:17:51Z","spotify_id":"69Kcp01n3vXgEHO6mj3wrn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5293b0f2f42b4b601003b8f905fcaba0ccf72c5cb2ced4b5744fbc8179f2954. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/69Kcp01n3vXgEHO6mj3wrn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/69Kcp01n3vXgEHO6mj3wrn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43db1a5734254c79198b566ad60419ea3e225776da2564383c90bd47dc48e05. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5lojQOhPNFKUwU3t77A2TH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5lojQOhPNFKUwU3t77A2TH.
カヴァティーナ（「ディア・ハンター」より）
ゆとりのじかん 〜頬撫でるロマンチック・ギター〜
a calm playlist for reading, studying or writing
The John Harle Collection, Vol. 2: Lush Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43db1a5734254c79198b566ad60419ea3e225776da2564383c90bd47dc48e05. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3WrUP6IOGYy5jiMJ32itRO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3WrUP6IOGYy5jiMJ32itRO.
{"copyright_id":"0xe5293b0f2f42b4b601003b8f905fcaba0ccf72c5cb2ced4b5744fbc8179f2954","isrc":"GBAYC1900055","name":"Cavatina (From \"The Deer Hunter\")","registered_at":"2026-06-07T06:17:51Z","spotify_id":"0LlfgCdLRYkRam0Rc2y30n","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5293b0f2f42b4b601003b8f905fcaba0ccf72c5cb2ced4b5744fbc8179f2954. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0LlfgCdLRYkRam0Rc2y30n.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0LlfgCdLRYkRam0Rc2y30n.