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 0x398a81b7f315c9a3367ac06c4e5245823b765f6aed73506508efab062026d4a5. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/008aeb36-b28f-4d35-8e1d-43b75d8f1fec.json and https://artists.proofprofile.net/proofs/artist/008aeb36-b28f-4d35-8e1d-43b75d8f1fec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Quintessence J.S. Bach: Matthäus Passion, Johannes Passion
Matthäus-Passion, BWV 244, Pt. 1: No. 1, Chorus. "Kommt, ihr Töchter, helft mir klagen"
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 0x5804810829e85497a2cd48738b875575009c423f6ad280c1ff87251cce2fcc7f. 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/NLY331502671.
Matthäus-Passion, BWV 244, Pt. 1: No. 3, Chorale. "Herzliebster Jesu, was hast du verbrochen" (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67c3b6fcf0f864bfbe264efebc649d32a5370fd62a951cfca96ab6c7b6b7da2. 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/NLY331502673.
Matthäus-Passion, BWV 244, Pt. 1: No. 5, Recitative. "Du lieber Heiland du" (Alto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf393a64b532d61329e60708deb3598ba8881ba67495796bd5d9205ca4fdd7319. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/NLY331502675.
Matthäus-Passion, BWV 244, Pt. 1: No. 7, Recitative. "Da ging hin der Zwölfen" (Evangelist, Judas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee158d2c64574126f21f61cb9d4b8d4864fcdd2144ebb61b64528eff46fd13a. 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/NLY331502677.
Matthäus-Passion, BWV 244, Pt. 1: No. 8, Aria. "Blute nur, du liebes Herz!" (Soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891dca68b6d58b6b83491ce04ef95f51bfe6810e22d05e1f782323319e34710d. 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/NLY331502678.
Matthäus-Passion, BWV 244, Pt. 1: No. 12, Recitative. "Wiewohl mein Herz in Tränen schwimmt" (Soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dae58f2e2bad1df734c6a1eda005afde2c70bb43836b0a0477d7f723fbe0c7. 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/NLY331502682.
Matthäus-Passion, BWV 244, Pt. 1: No. 19, Recitative with Chorale. "O Schmerz! Hier zittert das gequälte Herz" (Tenor, Chorus) 1'43
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1bde3a6bb4a8595b39fa8bba0170286ef72813e0a35eb353b17e8d1d869100. 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/NLY331502689.
Matthäus-Passion, BWV 244, Pt. 1: No. 26, Recitative. "Und er kam und fand sie aber schlafend" (Evangelist, Jesus, Judas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d84559ad81832f43208d1e681373371a557231aea0abcc472e643813e018528. 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/NLY331502696.
Matthäus-Passion, BWV 244, Pt. 1: No. 29, Chorale. "O Mensch, bewein dein Sünde groß" (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc4932965c71a6ff75cf2c147feccb706a731b97fe983a3a80c55d0e4d61b90. 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/NLY331502699.
Matthäus-Passion, BWV 244, Pt. 2: No. 32, Chorale. "Mir hat die Welt trüglich gericht'" (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8dd6ead63b04c193938ad853962b7ce5dd703236e79b7b6266f9b85e5cda20. 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/NLY331502702.
Matthäus-Passion, BWV 244, Pt. 2: No. 37, Chorale. "Wer hat dich so geschlagen" (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc010bc052b6fb25604c64d18640ee549ec2c3fc61e7f7ef408f04ab4156689df. 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/NLY331502707.
Matthäus-Passion, BWV 244, Pt. 2: No. 40, Chorale. "Bin ich gleich von dir gewichen" (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d13a837c1b4481cd7e58c1201d7b2a20c0ef5fd2303d3841776e75c0d78806. 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/NLY331502710.
Matthäus-Passion, BWV 244, Pt. 2: No. 42, Aria. "Gebt mir meinen Jesum wieder!" (Bass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc752e7544ab50f8b0afafae343abeb7584c4bce2b9f25438e6b2e6e9f7801df8. 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/NLY331502712.
Matthäus-Passion, BWV 244, Pt. 2: No. 46, Chorale. "Wie wunderbarlich ist doch diese Strafe!" (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738bf29d7342348f882de6b8d902a05fd2ea2ed9078fe8a6339a98c66332d83f. 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/NLY331502716.
Matthäus-Passion, BWV 244, Pt. 2: No. 48, Recitative. "Er hat uns allen wohlgetan" (Soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebad644146c2bf82877a468ea29ba402d73ca3477dfa3ee253e62153f6b67400. 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/NLY331502718.
Matthäus-Passion, BWV 244, Pt. 2: No. 49, Aria. "Aus Liebe will mein Heiland sterben" (Soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82abcbb129266a87f8da174aa7eec4ff2f600cd1c01e567d0fe63f7bb5e8587b. 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/NLY331502719.
St. Matthew Passion, BWV 244: "Kommt, ihr Töchter, helft mir klagen" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83e22d769e084a4bb1935deadfef8b51f63e0a41d87635c7080b8f723a66efe. 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/DES382140501.
St. Matthew Passion, BWV 244: "Da Jesus die Rede vollendet hatte" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c08d5043a477a4c42ec1231998b837f01cc5f9a959af7207397eb92a6026156. 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/DES382140502.
St. Matthew Passion, BWV 244: "Herzliebster Jesu, was hast du verbrochen" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece243d9ea02cab5281849c6d36b83aa5d2c097322b667e102c777b79d0928f3. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DES382140503.
St. Matthew Passion, BWV 244: "Da versammelt sich die Hohepriester..." - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90e12863b8de2bf6742bb378bf5c83eb6224da543b93aa200fa2c453f105cec. 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/DES382140504.
St. Matthew Passion, BWV 244: "Blute nur, du liebes Herz" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf573e403d6e869d42647adeac8e8739467cd83a13c6def8045bcc3b94ab60162. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/DES382140508.
St. Matthew Passion, BWV 244: "Ich bins, ich sollte büßen" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f32c62106e8764be96bc3da61299d93bc7f48722d2739aedd807cc780def25. 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/DES382140510.
St. Matthew Passion, BWV 244: "Ich will dir mein Herze schenken" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbebdb3f08a83a92271f048613a251d313b8ef9b9c7ad9b427ca1876e081c34e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DES382140513.
St. Matthew Passion, BWV 244: "Erkenne mich, mein Hüter" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09340739d6c78b579dc0829604585171b3a8f6f68aba94e8ac6734cb15ff6064. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/DES382140515.
St. Matthew Passion, BWV 244: "Ich will bei meinem Jesu wachen" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2fac5d2b3540d0aa27b18e46a76272194feb5a8310e36b930d7892f8513f37. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DES382140520.
St. Matthew Passion, BWV 244: "Gerne will ich mich bequemen" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ea617e048b4c02034938ad3be9406b77dd349f534bb80a9dca8629a9ded634. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DES382140523.
St. Matthew Passion, BWV 244: "Und er kam zu seinen Jüngern" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3883aa431855be43cbad7ec2016e5630d081cea69db81b042cfc767a2893d9ea. 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/DES382140524.
St. Matthew Passion, BWV 244: "Was mein Gott will, das g'scheh allzeit" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb14df12cf916673a0a939babc1c8e1c0f0cd89aa4dea4cc67724afb07860b5d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DES382140525.
St. Matthew Passion, BWV 244: "So ist mein Jesus nun gefangen..." - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb3d576f8a4d043f1efa6c9e1119cb5d4fc1e9bd5223b32e43b527311a5f29a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DES382140527.
St. Matthew Passion, BWV 244: "O Mensch, bewein dein Sünde groß" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb17c0c3944ef77e7434c9eed305e1c7bc0f9ecc93457c62b194f3813e65039d. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/DES382140529.
St. Matthew Passion, BWV 244: "Und wiewohl viel falsche Zeugen herzutraten" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e6bd0da8b89e42e87199bca87be6b6b872ae5e7d19381585ab4227e76d4364. 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/DES382140533.
St. Matthew Passion, BWV 244: "Mein Jesus schweigt zu falschen Lügen stille" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fc4c4b38dadd0a0279bc2855bd88930cd02dc55c391c0fce0d9f25a071e1c9. 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/DES382140534.
St. Matthew Passion, BWV 244: "und der hohe Priester antwortete..." - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c30d3586787fd3b344df3035c408568ab41eff96097f6237c9d630bb2ac914. 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/DES382140536.
St. Matthew Passion, BWV 244: "Des Morgens aber hielten alle Hohenpriester..." - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e13fce363e823ce6861f7ff21f93bfc882351e5e7bdf4ba27c95c9c42f56ef. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/DES382140541.
St. Matthew Passion, BWV 244: "Sie hielten aber einen Rat" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78c4275bb9c292b33c765bf65e9f8a4ac385cb4c20e48c1bc3d834217ec0cca. 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/DES382140543.
St. Matthew Passion, BWV 244: "Auf das Fest aber hatte der Landpfleger Gewohnheit..." - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f85a0a3863f92209ae85a6a6699524b0c58d984ca5bcbb32ed99c0c4522f69. 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/DES382140545.
St. Matthew Passion, BWV 244: "Sie schrieen aber noch mehr..." - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6169918c549906f4712f223b086c7ba2aa657be9e1847a9be8f12550e31a837. 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/DES382140550.
St. Matthew Passion, BWV 244: "Da ging hin der zwölfen Einer" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1166e5eb08a795e3e5f1e5e391342d62f773e20c136bd296c820e705fba344. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/DES382140507.
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
St. Matthew Passion, BWV 244: "Und er kam und fand sie aber schlafend" - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60feecea983305a4128ad976f6ae2732443ac5fa8036fcdee9c0527c557eccc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DES382140526.
St. Matthew Passion, BWV 244: "Da versammelten sich die Hohepriester..."
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd454ec09769cabe07b5fb997a6fb808a3b6d51f34806cad27a65447ca877132f. 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/DES380000038.
St. Matthew Passion, BWV 244: "Und der Hohepriester antwortete..."
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cf7edbc381ad3467ac00462936d89fe7973e459dea7a3142e42b7239bc3274. 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/DES380000070.