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 0xdc1fed1fb7e0ae01a2df7b360bf79681520aec8f3e84bc9a294f63cf84bdefd9. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05c9d2ba-d183-4bb0-87d8-5a949c31ef54.json and https://artists.proofprofile.net/proofs/artist/05c9d2ba-d183-4bb0-87d8-5a949c31ef54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concerto No. 1 in F Major, BWV 1046: I. —
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 0x40ed98534fac30cb07df5082aeb13ed0e165363d3d3b9eafbb5ff3a4cebc159d. 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/NLY331406776.
Concerto No. 1 in F Major, BWV 1046: IV. Menuet - Trio No. 1 - Polonaise - Trio No. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a7d53e07beb0d1168488a95beb2bd73c646e42aef1ae72f508e286d8351ab1. 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/NLY331406779.
Concerto No. 2 in F Major, BWV 1047: I. —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661015e9f15d59f11f41af69961d2b1db2b37251e91473646f3b40cb891af1e1. 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/NLY331406780.
Concerto No. 3 in G Major, BWV 1048: I. —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb76c70d8e06bb52c1da88936859cb2a094a76aa9a4f4f8e9285d09d519fcacb. 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/NLY331406783.
Concerto No. 4 in G Major, BWV 1049: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1669d4b4489339b428dc0b4287a5815b857abfa076a3cf0d98758678d0530382. 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/NLY331406787.
Concerto No. 4 in G Major, BWV 1049: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cd8835bbd331a2d34af7f2ae86eb9d16bfe7392c1efdf2d6cc8a67709d2df5. 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/NLY331406788.
Concerto No. 5 in D Major, BWV 1050: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda95878b49a8bd55b5a896ef9e4dc78c2f58b3c225b786d06b5d84db6179e93. 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/NLY331406789.
Concerto No. 5 in D Major, BWV 1050: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3479b15131afb6c98bc61d9b8c97304bff15988eeff1a0990e2c2773f5d23a50. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLY331406791.
Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97218c363e524ea95b0c7c09af66ebd68ad95c3a5b32f7dcfdb440710d41492. 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/NLY331406793.
Orchestral Suite No. 1 in C Major, BWV 1066: I. Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a21b14d8a9a55735dfdcd90fe5226c36974377f9a8fb94931a03f14ec63e39. 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/NLY331406795.
Orchestral Suite No. 2 in B Minor, BWV 1067: II. Rondeau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedca282ba68abf5f75827bd3783853fb406d752a99eef57d7c93058a0e096abf. 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/NLY331406803.
Orchestral Suite No. 2 in B Minor, BWV 1067: IV. Bourrée No. 1 - Bourrée No. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351f1afc1deb3e14e1b64bfcb5938e2e9934992cd010fcccad50ed28fe020d1a. 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/NLY331406805.
Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16384d25aa3ba372a79bfc2bb1f3f01db227f67c69f1b4c6f6f8e8dd943c6a97. 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/NLY331406808.
Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494c0b69bba5db928681b5fce2a8632a6103da216a631cb9cfa4fcadfbde2e64. 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/NLY331406810.
Violin Concerto in E Major, BWV 1042: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382246a1ebb1747ef06b8c95a830aeef8d65d5ff6718c249871b80ed037b0883. 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/NLY331406819.
Violin Concerto in D Minor, BWV 1052: I. — (Reconstructed from the Harpsichord Concerto, BWV 1052)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e099e9c05e6dca495ccd9f5333e6d757474eacaeed016a33809aaa573b97ed. 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/NLY331406825.
Een Muzikale Anthologie Der Noordelijke Nederlanden
A Musical Anthology of the Northern Netherlands
Stamitz, Bach, Abel, Haydn & Abingdon: Chamber Music for two Flutes, Viola and Cello (Destination London - Music for the Earl of Abingdon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d49635d1fe9589b3751ac9c71ebec4e02965fbd164f2a47bc083dffdc0d7349. 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/DEY320706003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f3ef67d89c16f073cdb8cae36492fa95355b9a0df6cdefb04e5f8d0ae9f96d. 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/DEY320706005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab33ca508504590b55f843616b64e9aff32615b052eb8ea03a52ea2a5f6e73f5. 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/DEY320706014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd37f065246d3509b5c914c38ccae47b09f5dc6105e0323f89742cf5df9f04c7. 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/DEY320706024.
Vivaldi: Bizzarie Venetiane. Concerti per vari strumenti
Concerto for Violin, Organ, Strings and Continuo in C Major, "Il rosignuolo", RV 335a: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a6ecf33f9d4684c20d8c7af880556b6cc0d67bdad821711044ba172bff4182. 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/ES7141500344.
Concerto for Strings and Continuo in G Major, "Alla rustica", RV 151: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e99eadbad871b20514d8fc82d2b3d2119f6ff1ef634653af6c08359137e44bc. 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/ES7141500350.
Concerto for 2 Traversos, Strings and Continuo in C Major, RV 533: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc422d68025b348cb5eb2ca6a7e09188be6b3cd4622b15730ce2769c757d8a692. 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/ES7141500325.
Concerto for 2 Traversos, Strings and Continuo in C Major, RV 533: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8238696b7903345b32f82223616e138fce2ea7caae946866be7ace30f5bef13b. 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/ES7141500326.
Concerto for Violin, Organ, Strings and Continuo in D Minor, RV 541: II. Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521cbcc3450d4b34368f792fd92f1a885e2383b8bc02c1ef074fb978a445a7e6. 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/ES7141500328.
Concerto for Violin, Organ, Strings and Continuo in D Minor, RV 541: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0af2021a4216b8de2e0cc567ba7a767885c3ec3199acb74736de23b83bb9712. 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/ES7141500329.
Concerto for Traverso, 2 Violins, Violoncello and Continuo in G Minor, RV 107: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8876e18f9b29ad16e7158fd154bf22ba963f0adf825ffc045348dd780a25cd. 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/ES7141500330.
Concerto for Traverso, 2 Violins, Violoncello and Continuo in G Minor, RV 107: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7058beeda26efcb9ac3dfcc4b64f42075d477c16404875ce46060c7fabc8f4. 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/ES7141500331.
Concerto for Violin, Violoncello, Organ, Strings and Continuo in C Major, RV 554a: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071f07357f55e9d1a51ed2b11bd05b8d9f40f0b30c2939db5a64e3854fe87a2f. 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/ES7141500333.
Concerto for Violin, Violoncello, Organ, Strings and Continuo in C Major, RV 554a: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56e882785c54266c586d799668b094f40d708d2c0b50c668025e0f3bd5d6a26. 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/ES7141500334.
Concerto for Recorder, Strings and Continuo in C Minor, RV 441: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69776fdf8fe7f457f6eb3440b1356a0e4d51d2522c8da6d2cde3430e51faceb5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES7141500337.
Concerto for Violin, Strings and Continuo in G Minor, RV 155: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fd016291c5ceeb014a52334ca2002bb217e46158746b7a18a9ae8be7d4e41b. 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/ES7141500365.
Concerto for Violoncello, Strings and Continuo in G Minor, RV 417: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831697de4cc2c2952e4c4d95c46a929c63f623d7459747b159cb0792d5710602. 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/ES7141500339.
Concerto for Traverso, Strings and Continuo in D Major, RV 783: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b660f31af52a6370122337837ac3f36b28771e6f601bfb975db79372b69bc47. 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/ES7141500368.
Concerto for Traverso, Organ, Strings and Continuo in F Major, RV 767: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56513fbdea07826d78fd93f4310303ee4e57153165d0f939ee786610423df7f3. 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/ES7141500346.
Concerto for Traverso, Strings and Continuo in D Major, RV 783: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf178bf618b8cb989e714b72cd6f8ca710a8f5aa761093a9f2f9ff703ac5d473c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES7141500370.
Concerto for Violin, Organ, Strings and Continuo in F Major, RV 542: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108adad552b53c5cc5432b12a911c2c03af3392a6ba556c808e35349b0458096. 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/ES7141500371.
Concerto for 2 Traversos, Strings and Continuo in C Major, RV 533: I. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbb0345c4d461602d2a9eb69b357c1afeca903956064325a4432945808935d7. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ES7141500324.
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
J.A. & J.F. Groneman: Rococo Flute Music
Willem De Fesch: VI Concerti Opera Quinta
II. Der Himmel Lacht! Die Erde Jubilieret BWV 31, 1. Sonata
Holland Boys Choir, Netherlands Bach Collegium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64ed1cea98d4f3dddb9cb5508533992aec7695bb21a979fbeda1e49470b5d94. 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/NLN580537704.
II. Der Himmel Lacht! Die Erde Jubilieret BWV 31, 2. Coro: Der Himmel Lacht! Die Erde Jubilieret
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af48c84839b87dba89a93015a18993ad2a139ecf66d663051809d1588bdd89f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLN580537705.
I. Mache Dich, Mein Geist, Bereit BWV 115, (1) Coro: Mache Dich, Mein Geist, Bereit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d97bd6ff85a92ddc1c4b8531d16eb9847f3119165b9f9d61daecb8fc80ceabf. 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/NLN580536894.
I. Herz Und Mund Und Tat Und Leben Bwv 147, For The Feast Of Visitation,mariae Heimsuchung, Seconda Parte: Choral (Coro), Jesu Bleibet Meine Freude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a307baf484051275a3a8b67a511f6b29aa8873cf8df6375f675e4f0eb7fb91. 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/NLN580505209.
Bach Edition Vol. 15, Cantatas Vol. VIII Part: 4
Bach Edition Vol. 14, Cantatas Vol. VII Part: 5
Bach Edition Vol. 12, Cantatas Vol. IV Part: 4
Bach Edition Vol. 14, Cantatas Vol. VII Part: 3
Bach Edition Vol. 9, Cantatas Vol. IV Part: 3
Bach Edition Vol. 8, Cantatas Vol. III Part: 4
Bach Edition Vol. 12, Cantatas Vol. IV Part: 2
Bach Edition Vol. 11, Cantatas Vol. V Part: 5
Bach Edition Vol. 8, Cantatas Vol. III Part: 3
Bach Edition Vol. 11, Cantatas Vol. V Part: 1