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 0xcb17396df572cec9d06282b44c811a92ddee71b2c3c197af22a8a9f3cc01db9a. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21daa103-456b-4a6c-b1a4-2d5518302994.json and https://artists.proofprofile.net/proofs/artist/21daa103-456b-4a6c-b1a4-2d5518302994.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cavalieri: Rappresentatione di anima et di corpo
Rappresentatione di anima et di corpo: Sinfonia
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 0x1e7ae663a8e3c96d01a2099422f487e0394264f8f929c08fee95a8fe5a08bfa5. 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/FRZ141407010.
Rappresentatione di anima et di corpo, Atto I Scena 1: "Il tempo, il tempo fugge" (Tempo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166e194226708e9bf155844686b5ac10c8c233e7819f7a09eecfafbdba83d652. 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/FRZ141407040.
Bach: Matthäus-Passion (St Matthew Passion)
St. Matthew Passion, BWV 244, Part I: No. 1, "Kommt, ihr Töchter, helft mir klagen" (Chorus I & II)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb00155a6d12f4898c9eb8524e95c6f0e775b173b029750773a76db0e10af330. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRZ141220010.
Matthäus-Passion, BWV 244, Part I: No. 2, "Da Jesus diese Rede vollendet hatte" (Evangelista, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dbdaa3d59834fc2a2609027335fb6feb4b6cf66e8b55e64bfc2b88c7cbdc9f. 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/FRZ141220020.
St. Matthew Passion, BWV 244, Part II: No. 39, Aria "Erbarme dich"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e446534011a246581efb716a1efdebfd8d6c0538f67de5480d0ae5b8775f7f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRZ141221020.
Matthäus-Passion, BWV 244, Part I: No. 3, Choral "Herzliebster Jesu, was hast du verbrochen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76217280ac228a65960c2807dd0b47ce7c209d0804aea17f0a5fef4988a6e90b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRZ141220030.
Matthäus-Passion, BWV 244, Part II: No. 40, Choral "Bin ich gleich von dir gewichen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5184f61ac78e015b7a78d3dee11f677dbe388cf68362568a33a7362c8897a053. 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/FRZ141221030.
St. Matthew Passion, BWV 244, Part II: No. 42, Aria "Gebt mir meinen Jesum wieder"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb8c852721b78ee9a54adcd3c521487f62da26a6f37188e1d94bcc6e3ed5729. 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/FRZ141221050.
St. Matthew Passion, BWV 244, Part I: No. 5, Recitativo "Du lieber Heiland du"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9916999b2baf9f3d4867ce084d2eee0c4296c8108199dec6d4a527a6c10d54. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ141220050.
Matthäus-Passion, BWV 244, Part II: No. 43, "Sie hielten aber einen Rat" (Evangelista, Pilatus, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4b0f09912e8ab8fd4d71e0d9d011184bcce031e37b834484b67d19d7362d46. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ141221060.
Matthäus-Passion, BWV 244, Part I: No. 6, Aria "Buß und Reu"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fbac580c1147b9bb0c1ab17950135abad97da99123aa80da09c4063931aa1e. 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/FRZ141220060.
Matthäus-Passion, BWV 244, Part II: No. 44, Choral "Befiehl du deine Wege"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a51919bd67dd06eb12ffbe7b12a2f54d401ef848e3608b1657a6cd87181019c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ141221070.
St. Matthew Passion, BWV 244, Part I: No. 7, "Da ging hin der Zwölfen einer" (Evangelista, Judas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7eab3380632b13cf6a1ae0fa311201887516526083a7ca592779b4beba73870. 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/FRZ141220070.
Matthäus-Passion, BWV 244, Part I: No. 8, Aria "Blute nur, du liebes Herz"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c38dc9d64b961a73b7cc8d0151b12a32030d37ce7ba413d468949e7a3726c8a. 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/FRZ141220080.
Matthäus-Passion, BWV 244, Part II: No. 46, Choral "Wie wunderbarlich ist doch diese Strafe"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f50399b6e72c2e7ddb8f8cd33e920937e43754207178e0d106db3bb31f0816. 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/FRZ141221090.
Matthäus-Passion, BWV 244, Part I: No. 10, Choral "Ich bin's, ich sollte büßen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f44d82ccc53076c11a7a080d0a1ba8c481c58e1e0560289c43aeec5d704b63. 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/FRZ141220100.
St. Matthew Passion, BWV 244, Part II: No. 48, Recitativo "Er hat uns allen wohlgetan"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57999befb4e3b7424088d6a0c9069b9f92c16d31be0ff498ff031803864c808f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ141221110.
Matthäus-Passion, BWV 244, Part I: No. 11, "Er antwortete und sprach" (Evangelista, Jesus, Judas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3e6ba7018ef9252af8124d8c8c8d062dafaa48b7384cdca131283a8f435203. 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/FRZ141220110.
Matthäus-Passion, BWV 244, Part I: No. 12, Recitativo "Wiewohl mein Herz in Tränen schwimmt"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bfca70e96dc7e20794ba7c46e84f399ace42550db56af61db0977f74106791. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ141220120.
Matthäus-Passion, BWV 244, Part I: No. 13, Aria "Ich will dir mein Herze schenken"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f70e71477c27085cadca0e8e5a46f17cd9c3161498f9376902039995ec35e9. 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/FRZ141220130.
Matthäus-Passion, BWV 244, Part I: No. 14, "Und da sie den Lobgesang gesprochen hatten" (Evangelista, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ff4c826826bf18071233dc91746d06d65bfa105ef7edf5ae881837431c9f0b. 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/FRZ141220140.
Matthäus-Passion, BWV 244, Part I: No. 15, Choral "Erkenne mich, mein Hüter"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6eca43e82ecb69e3c1ed316839ad472dc747c3493dd3d29c48c40ed175e0de9. 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/FRZ141220150.
Matthäus-Passion, BWV 244, Part I: No. 16, "Petrus aber antwortete" (Evangelista, Petrus, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3acce095bae2dbbe49f9007343be7261272c2286f0d79595fef00ca7ecfd44. 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/FRZ141220160.
Matthäus-Passion, BWV 244, Part I: No. 17, Choral "Ich will hier bei dir stehen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d60a32a5f6c3ae61f06aa8d36baf197ad6bb2ac023fd0880fc02aa4cb22b7b. 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/FRZ141220170.
Matthäus-Passion, BWV 244, Part I: No. 18, "Da kam Jesus mit ihnen zu einem Hofe" (Evangelista, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63d25c82d51691a191f74f1f901976ff82655a43f61389d6370cd75f9dbab7e. 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/FRZ141220180.
Matthäus-Passion, BWV 244, Part I: No. 19, Recitativo a doi Cori "O Schmerz! hier zittert das gequälte Herz"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fd37d3d05ca4cf683974f5cd1134abcba03f627e0e0e7ea39929c83c3daac5. 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/FRZ141220190.
St. Matthew Passion, BWV 244, Part I: No. 20, Aria a doi Cori "Ich will bei meinem Jesu wachen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0891f5b019d98cda7440eca03e4a793b4191903ab3dd8383ef478bf4ebab4f8. 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/FRZ141220200.
Matthäus-Passion, BWV 244, Part 1: No. 21, "Und ging hin ein wenig" (Evangelista, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e7186daef4178c6dc1190cca7af2f62815d7d6a8f11491e8067892a94a6b5b. 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/FRZ141220210.
Matthäus-Passion, BWV 244, Part I: No. 22, Recitativo "Der Heiland fällt vor seinem Vater nieder"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38264421fb85c798e2d88f41f7c9fbf705b37d024d2162b307917510e58c8e3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ141220220.
Matthäus-Passion, BWV 244, Part I: No. 23, Aria "Gerne will ich mich bequemen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886fd04d0d60c6eaa5956a10c9dbf8d81baf1a7d49beb8e5b4453b833b8c48a7. 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/FRZ141220230.
Matthäus-Passion, BWV 244, Part 1: No. 24, "Und er kam zu seinen Jüngern" (Evangelista, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5d90e676acf8ba040018683bcb8b0a15ffeaf625bb1e695b1a02efc9c3c86b. 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/FRZ141220240.
Matthäus-Passion, BWV 244, Part I: No. 25, Choral "Was mein Gott will, das g'scheh' allzeit"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afb6ea0ce6c17d9bd608c7e799b79c656795edbe5f1f57c185b6a63d9a5874f. 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/FRZ141220250.
Matthäus-Passion, BWV 244, Part I: No. 26, "Und er kam und fand sie aber schlafend" (Evangelista, Jesus, Judas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb192ee5533886b262f8580437e45cea42137a4dc7e1eeb1584e662142810c0aa. 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/FRZ141220260.
Matthäus-Passion, BWV 244, Part 1: No. 28, "Und siehe, einer aus denen" (Evangelista, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b860022b724a94b9962d271e3b9721572e15941c79dcd04e51a019f5344f36. 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/FRZ141220280.
St. Matthew Passion, BWV 244, Part 1: No. 29, Choral "O Mensch, bewein' dein Sünde groß"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb68291c5a8ae48424d64b9e3076e2298eb2e18c792e1595b5e1cbe29c911a9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ141220290.
Matthäus-Passion, BWV 244, Part 1: No. 30, Aria "Ach! nun ist mein Jesus hin" (Chorus I & II)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f03441461416cf248b27c1d34a4650c98e47bec9e3c30869417c7ab2540d05. 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/FRZ141220300.
St. Matthew Passion, BWV 244, Part II: No. 31, "Die aber Jesum gegriffen hatten" (Evangelista)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc746ae890b7e059590a3ed10876f03f6018bfe022e907221bf93964d423f4d7c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ141220310.
Matthäus-Passion, BWV 244, Part II: No. 32, Choral "Mir hat die Welt trüglich gericht't"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23a539871407b41db68c1d3219988ae69e856c237124ee8246479e6deb4df4d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ141220320.
Matthäus-Passion, BWV 244, Part II: No. 33, "Und wiewohl viel falsche Zeugen herzutraten" (Evangelista, Testis I & II, Pontifex)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c95c91d5a527ac196503e78b5998bdd3b046a3a514fd2ee0f274e4b4fe7f62. 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/FRZ141220330.
St. Matthew Passion, BWV 244, Part II: No. 34, Recitativo "Mein Jesus schweigt zu falschen Lügen stille"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bee08b563e9fe1186324118ab2b8bdfb5e0477b78672e2303efe03b3fe9ab8. 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/FRZ141220340.
Matthäus-Passion, BWV 244, Part II: No. 35, Aria "Geduld, Geduld!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed53a61b6d83f9de16aa4ed409e894435a41f1042e5cf79f8ed428c1e882fda. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ141220350.
Matthäus-Passion, BWV 244, Part II: No. 37, Choral "Wer hat dich so geschlagen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b957b8d2b3146bddb2716c0d17f6e193cda5ff15bda449009f96a7e93a7845. 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/FRZ141220370.
Hercules (Ein Pasticcio aus Werken von Georg Friedrich Händel und Johann Sebastian Bach)