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 0x0e0fce901640b13d0434a45c40795b928781657c6e80312fb2c855e0e326986d. 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/595f88c7-d178-4847-bf7b-06f356b9b564.json and https://artists.proofprofile.net/proofs/artist/595f88c7-d178-4847-bf7b-06f356b9b564.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Monteverdi: L'Orfeo, SV 318, Prologue: Toccata
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 0xeb112819423e417ca156991cb0fcd62bdbbcc897281cb764160efe5277edbf5a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC0302630.
Handel: Serse, HWV 40, Act 1: Arioso. "Ombra mai fù" (Serse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239eea4ac499de1efaa19d9a965ee62c5acb6a3fe3f4fd4cec2f815b81891ef5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYC9800727.
Monteverdi: L'Incoronazione di Poppea, SV 308, Act 3: "Pur ti miro" (Poppea, Nerone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc295ba9243247d00dedbb1b7eeaeda58750b58be84eb2f93221b6d974c4b2ca4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAYC8802943.
Handel: Solomon, HWV 67, Act 3: Sinfonia "The Arrival of the Queen of Sheba"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc97a0e453c8f01da0eaa6b3fe54b6d4d9b631a335abc7bea9f371d81157f065. 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/GBAYC8704350.
Bach The Orchestral Suites, Triple Concerto
Bach, JS: Orchestral Suite No. 2 in B Minor, BWV 1067: V. Polonaise & Double
Christopher Krueger/Boston Early Music Festival Orchestra/Andrew Parrott
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe720555c731970a5925611bff0073c4dcdd1a9bf8570f4bc49a1cf330f603f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC9201229.
Bach, JS: Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe52e7a1201d411df5ace05eb682ca530fb794e45d749400cdaeea5c69b4d925. 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/GBAYC9201231.
Bach, JS: Suite No. 3 in D Major, BWV 1068: II. Air
Orchestra of the Boston Early Music Festival
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45394e7e958172e33c56d97f4a921a81eabcc5d5df1cdae1eabaa23ddb9335aa. 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/GBAYC9201234.
Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: III. Gavottes I & II
Boston Early Music Festival Orchestra/Andrew Parrott
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dacdf0dc7d4bd680e7a1ae512feb80094e16556cf36efc44ac840cd9ebdfd6. 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/GBAYC9201235.
Pachelbel's Canon & Other Baroque Favourites
Pachelbel: Canon and Gigue for Three Violins and Continuo in D Major: Canon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2637101785f099616c124683e374b7775b49fc04d99128f5e74b990acef24b6d. 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/GBAYC8702056.
Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: V. Gigue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d72f1be094f7d93d9d35162c133c03ae4015bcc2f0202893e6b2065fe16e5cb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYC9201237.
Bach, JS: Orchestral Suite No. 2 in B Minor, BWV 1067: VI. Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe435075cdf3f92a04efa99efa8c93c82fd53e67166e803ae7dd1a97c78e44e3d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYC9201230.
Vivaldi: Gloria in D Major, RV 589 - Bach: Magnificat in D Major, BWV 243
Orchestral Suite No. 1 in C Major, BWV 1066: V. Menuets I & II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1eefec4ccb60489b17c9a94753563ce3b7d5df1dbfef7e9321355e6492eadc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USTE10410619.
Suite No. 3 in D Major, BWV 1068: II. Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762a1476f1494f35a68dd69c83feb10ea7c4a4a6a8e11498c6ddfbe9026fc820. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USTE10414619.
Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b19a1e0fe4763708edac8b080b31c01b36838dc8b2b75db9353c91f89bba103. 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/USTE10424619.
Bach: Brandenburg Concertos Nos. 1, 2 & 3
Bach: The Complete Brandenburg Concertos
Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703e4e6e2c6c7916a9544bba9cedfe38535856d9edbfdb3507de7e4f573e59b6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USTE10303368.
Brandenburg Concerto No. 1 in F Major, BWV 1046: IV. Menuetto - Trio - Polonaise - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba41f59e66f1959437ed63f4e6ebb75f8961e78978f8850383f5625cfb6ac322. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USTE10304368.
Brandenburg Concerto No. 2 in F Major, BWV 1047: I. (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b0269111b3d0a4017d0c704eb77cad609ad60822131244f6a50ecd3bdcf7c7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USTE10305368.
Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4cbc419d0a6ba95e0b66f1e2a5353a7c814f728fe669e5de2a1b02bd5fb9ba. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USTE10307368.
Brandenburg Concerto No. 5 in D Major, BWV 1050: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba13990ab4de90f641d53e276ebb3cdcf5e57ec48b9daebaac6a48c4999fdc7a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USTE10306354.
Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf437b42fdba6569a2fef202ca63593ad7782e336903329a1f372d1040bdac1b7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USTE10308354.
Bach: Brandenburg Concertos Nos. 4, 5 & 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf437b42fdba6569a2fef202ca63593ad7782e336903329a1f372d1040bdac1b7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USTE10308354.
Gianni Schicci, SC 88: O mio babbino caro
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3630b00c15097987c143f3083bcb7f3a9db900816f8567ce0038d824de11da91. 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/USTE10408644.
Springtime Symphonies: Bach, Puccini, Vivaldi
Gianni Schicci, SC 88: O mio babbino caro (Orch. C. Beck, S. Bernstein & E. Kunzel)
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12 Concerti grossi After Corelli, No. 4 in F Major, H. 135: III. Vivace
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The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
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Bach, J.S.: Musical Offering / Flute Sonata, Bwv 1035 / 14 Verschiedene Canones
J.S. Bach: The Art of Fugue, BWV 1080 (Live)
Beautiful Wedding: Classical Music for the Wedding Dinner
Leclair: Chamber Music With Flute (Complete)
Mozart, W.A.: Clarinet Quintet, K. 581, K. Anh. 91 / Flute Quartets Nos. 2 and 4
Yehudi Wyner: On This Most Voluptuous Night
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