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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dc47c902e62570d56dd4aab19d337ad77bab1429cd75c16f0659b4951459e9. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f0ab7a2-a844-44f9-856d-5e9ffb4ca310.json and https://artists.proofprofile.net/proofs/artist/4f0ab7a2-a844-44f9-856d-5e9ffb4ca310.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vivaldi: Concertos / Pachelbel: Canon in D Major / Albinoni: Adagio for Strings and Organ in G Minor / Bach: Air On The G String - Jesu, Joy Of Man's Desiring - Prelude No. 1 / Schubert: Ave Maria / Walter Rinaldi: Orchestral Works - Vol. I
Bach: Air On The G String - Violin Concertos - Jesu, Joy of Man's Desiring / Vivaldi: Cello Concerto / Pachelbel: Canon in D Major / Albinoni: Adagio / Beethoven: Fur Elise - Moonlight Sonata / Ave Maria / Wedding March / Walter Rinaldi: Works - Vol. II
Vivaldi: the Four Seasons & Guitar Concerto / J.S. Bach: Air On the G String & Violin Concertos / Walter Rinaldi: Orchestral and Piano Works / Pachelbel’s Canon in D Major / Albinoni: Adagio / Turkish March / Wedding March / Here Comes the Bride
Pachelbel: Canon in D - Vivaldi: The Four Seasons - Bach: Toccata and Fugue in D Minor & Air On the G String (Live) - Walter Rinaldi: Adagio for Oboe & Works - Albinoni: Adagio (Live) - Granados: Danza Espanola - Liszt: Love Dream - Paradisi: Toccata
Vivaldi: The Four Seasons & Concertos - Bach: Toccata and Fugue & Air On the G String (Live) - Pachelbel: Canon in D - Albinoni: Adagio (Live) - Mendelssohn: Wedding March - Wagner: Here Comes the Bride - Liszt: La Campanella - Sinding: Rustle of Spring
Vivaldi - Pachelbel - Bach - Rinaldi - Mendelssohn: The Four Seasons & Concertos, Canon in D, Air On the G String, Wedding March, Orchestral, Piano and Organ Works
Vivaldi - Pachelbel - Bach - Albinoni - Rinaldi - Beethoven: The Four Seasons, Canon in D, Air On the G String & Toccata and Fugue, Adagio, Fur Elise, Orchestral, Piano and Organ Works
Pachelbel - Vivaldi - Bach - Liszt - Rinaldi - Frescobaldi: Canon in D, The Four Seasons, Air On the G String & Toccata and Fugue, La Campanella, Orchestral, Piano and Organ Works
Pachelbel - Vivaldi - Bach - Mendelssohn - Rinaldi - Frescobaldi: Canon in D, Concertos, Air On the G String, Violin Concerto No. 1 & Toccata and Fugue, Wedding March, Orchestral, Piano and Organ Works
Pachelbel - Vivaldi - Bach - Mendelssohn - Chopin - Mozart: Canon in D, Concertos, Violin Concerto & Toccata and Fugue, Wedding March, Waltzes, Sonata Facile, Piano and Organ Works
Vivaldi: The Four Seasons & Guitar Concerto - Pachelbel: Canon in D Major - Bach: Air On the G String & Toccata and Fugue in D Minor - Albinoni: Adagio in G Minor - Mendelssohn: Wedding March - Chopin: Waltzes and Impromptu - Liszt: La Campanella
Vivaldi: The Four Seasons & Cello Concerto - Pachelbel: Canon in D Major - Bach: Air On the G String & Violin Concerto N° 1 in A Minor - Albinoni: Adagio in G Minor - Beethoven: Fur Elise & Moonlight Sonata - Mozart: Sonata Facile & Turkish March
Vivaldi: The Four Seasons & String Concerto - Pachelbel: Canon in D - Bach: Air On the G String & Violin Concerto N° 1 in A Minor - Albinoni: Adagio in G Minor - Beethoven: Fur Elise - Frescobaldi: Organ Works - Rinaldi: String Orchestra Works
Albinoni: Adagio for Oboe - Vivaldi: Oboe Concerto, Concerto Alla Rustica & Violin Concertos from L’ Estro Armonico (Live) - Bach: Air On the G String - Pachelbel: Canon in D - Rinaldi: Adagio for Oboe & Orchestral Works - Mendelssohn: Wedding March
Vivaldi: L' Estro Armonico, Concerto Alla Rustica & String Concertos (Live) - Pachelbel: Canon in D - Bach: Adagio for Oboe, Air On the G String & Violin Concerto - Walter Rinaldi: Piano Concertos - Albinoni: Adagio for Oboe - Beethoven: Moonlight Sonata
Walter Rinaldi: Piano Concertos, Adagio for Oboe & String Orchestra Works - Pachelbel: Canon in D - Albinoni: Adagio for Oboe - Vivaldi: L’ Estro Armonico & Oboe Concerto (Live) - Bach: Adagio for Oboe & Air On the G String - Mendelssohn: Wedding March
Vivaldi: Concerto Alla Rustica & L' Estro Armonico - Pachelbel: Canon in D - Albinoni: Adagio for Oboe - Bach: Air On the G String & Violin Concerto - Walter Rinaldi: String Orchestra Works & Piano Concertos - Beethoven: Fur Elise & Moonlight Sonata
Vivaldi: The Four Seasons, Concerto Alla Rustica & Violin Concertos from L’ Estro Armonico (Live) - Pachelbel: Canon in D - Walter Rinaldi: String Orchestra Works - Albinoni: Oboe Adagio & Adagio in G Minor - Bach: Air On the G String - Paradisi: Toccata
The Four Seasons, Concerto for Violin, Strings and Continuo in E Major, No. 1, Op. 8, Rv 269, "La Primavera" (Spring): I. Allegro
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ef9c6c6af4b43bc31e43f03eadb10fb32d7bf1bb895b3995e3604d0dbae449. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USHM21435959.
The Four Seasons, Concerto for Violin, Strings and Continuo in E Major, No. 1, Op. 8, Rv 269, "La Primavera" (Spring): II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2829384b4a00eedf5516747dd64fbba421f702cb1eae9f499c2c37de4fd30dd3. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:10:53Z), 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/USHM21435960.
The Four Seasons, Concerto for Violin, Strings and Continuo in E Major, No. 1, Op. 8, Rv 269, "La Primavera" (Spring): III. Allegro pastorale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ab4b9a55f7eb9bca3c480a6f44c30cee6f2d54f3813bfa61c4ca129fc0f68e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USHM21435961.
The Four Seasons, Concerto for Violin, Strings and Continuo in G Minor, No. 2, Op. 8, Rv 315, "L' Estate" (Summer): I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c049b51f1f9b8efa2393e7c785a9c891fa630a67b1483d086e35a63c77f945. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USHM21435962.
The Four Seasons, Concerto for Violin, Strings and Continuo in G Minor, No. 2, Op. 8, Rv 315, "L' Estate" (Summer): III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544b951e5c3c6c7de9238f5aee8b2d323471395b26f0e7c8237584e6d9603350. 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/USHM21435964.
The Four Seasons, Concerto for Violin, Strings and Continuo in F Major, No. 3, Op. 8, Rv 293, "L' Autunno" (Autumn): I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200c7088637238093f32f2d12209def3650f651a31ec36a3799a43ba2a1748e8. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:12:24Z), 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/USHM21435965.
The Four Seasons, Concerto for Violin, Strings and Continuo in F Major, No. 3, Op. 8, Rv 293, "L' Autunno" (Autumn): III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6776fab269eacf291e2db00bc4fe69cbf8dcc5d64aa0fcc5aad3b3a328e9a265. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:05:25Z), 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/USHM21435967.
The Four Seasons, Concerto for Violin, Strings and Continuo in F Minor, No. 4, Op. 8, Rv 297, "L' Inverno" (Winter): I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28ee9bc9aa96839fe1c04f69c7056cb54cbf00b81f627746468ffc667b5b869. 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/USHM21435968.
The Four Seasons, Concerto for Violin, Strings and Continuo in F Minor, No. 4, Op. 8, Rv 297, "L' Inverno" (Winter): II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9932965a37dde89dc057025c72135543b2de105a29909c3255e5f1d00960d7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM21435969.
Vivaldi: The Four Seasons, Violin Concertos & Oboe Concertos (Live) - Pachelbel: Canon in D Major - Bach: Air On the G String & Toccata and Fugue - Walter Rinaldi: Works - Mendelssohn: Wedding March - Wagner: Here Comes the Bride - Schubert: Ave Maria
Vivaldi: The Four Seasons & Guitar Concerto - Walter Rinaldi: Piano Concerto, Guitar & Piano Works - Pachelbel: Canon in D Major - Bach: Air On the G String & Violin Concertos - Mendelssohn: Wedding March
Pachelbel: Canon in D Major for Various Instruments - Walter Rinaldi: Piano Concertos - Bach: Toccata and Fugue in D Minor & Air on the G String - Beethoven: Moonlight Sonata & Fur Elise - Mozart: Turkish March - Albinoni: Adagio
Vivaldi: Violin Concertos from “L’ Estro Armonico” & String Concerto “Alla Rustica” / Walter Rinaldi: Piano Concertos and Orchestral Works (Live)
Vivaldi: Oboe Concerto RV 451 & String Concerto RV 121 / Bach: Oboe Adagio BWV 1059/ Walter Rinaldi: Guitar Works / Pachelbel: Canon / Vivaldi: Guitar Concerto / Albinoni: Oboe Adagio, Op. 9
Handel: Hallelujah from Messiah / Bach: Jesu, Joy of Man’s Desiring BWV 147, Cantata BWV 51 & Toccata and Fugue in D Minor / Walter Rinaldi: Piano Concertos & Orchestral Works / Mozart: Ave Verum Corpus
W.A. Mozart: String Quartets K. 156 & K. 157 / Walter Rinaldi: String Quartets No. 1-4 (Live)
Bach: Air on the G String, Cantata BWV 51, Jesu, Joy of Man’s Desiring BWV 147 & Toccata and Fugue in D Minor/ W.A. Mozart: String Quartets K. 156 & K. 157 / Handel: Hallelujah from Messiah (Live)
Pachelbel: Canon in D Major / Bach: Air on the G String & Violin Concerto / Albinoni: Adagio / Vivaldi: Cello Concerto / Walter Rinaldi: Piano Concertos & Orchestral Works
Walter Rinaldi: Piano Concertos & Orchestral Works / Vivaldi: The Four Seasons
Vivaldi: The Four Seasons & Cello Concerto / Pachelbel: Canon in D Major / Bach: Air on the G String / Albinoni: Adagio for Strings and Organ in G Minor
Bach: Air on the G String & Toccata and Fugue in D Minor / Albinoni: Adagio / Pachelbel: Canon in D / Vivaldi: Violin Concertos, Cello & String Concertos
Bach: Air on the G String / Cantata No. 51 / Jesu, Joy of Man's Desiring & Violin Concerto / Walter Rinaldi: Piano Concertos & Orchestral Works / Vivaldi: Concerto Alla Rustica & String Concertos / Handel: Hallelujah
Pachelbel: Canon in D Major / Bach: Air on the G String & Violin Concerto / Albinoni: Adagio / Vivaldi: Cello & String Concertos / Walter Rinaldi: Piano Concertos & Orchestral Works
Vivaldi: Violin Concertos from L’ Estro Armonico / Bach: Air On The G String & Violin Concerto / Walter Rinaldi: Piano Concertos & Orchestral Works / Pachelbel: Canon in D Major / Albinoni: Adagio