thumb|Eric Ericson (2007) Eric Gustaf Ericson (26 October 1918 – 16 February 2013)Eric Ericson 26/10 1918 — 16/2 2013 Orphei Drängar official website Körledaren Eric Ericson död, Upsala Nya Tidning, 1
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 0x8e5bfd001becbb5f3ded140b73adf1b986dc08012ddd23aa92c4cac83fb1b317. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0400b9aa-d2c5-4b19-9e12-723c993a44b6.json and https://artists.proofprofile.net/proofs/artist/0400b9aa-d2c5-4b19-9e12-723c993a44b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Od Antiqua (Collector's Classics, Vol. 11 - The Choirs of Sweden)
St. Matthew Passion, BWV 244: Part I: No. 1. Chorus: Kommt, ihr Tochter, helft mir klagen (Chorus, Soprano in ripieno)
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 0x9eb1606dde4313a453139a668fcd7f303a0df0c70e2d4a3eeab768dcd17b5fc7. 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/QMDA62171635.
St. Matthew Passion, BWV 244: Part I: No. 2. Recitative: Da Jesus diese Rede vollendet hatte (Evangelist, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a49f2b9b304ec1e134734f533a9ab8ad3dbb354cb160a5f73b0d1c10a8c78bd. 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/QMDA62171636.
St. Matthew Passion, BWV 244: Part I: No. 3. Chorale: Herzliebster Jesu, was hast du verbrochen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f62cd3c87039540fff81c98406b997672fcbf60297de61d192537fbb65beb2. 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/QMDA62171637.
St. Matthew Passion, BWV 244: Part I: No. 4. Recitative and Chorus: Da versammleten sich die Hohenpriester (Evangelist, Chorus, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de3f1dba0baeb3c7bed858d9a0509f6c5113918e5ec9112c1f167e9360a09ce. 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/QMDA62171638.
St. Matthew Passion, BWV 244: Part I: No. 5. Recitative: Du lieber Heiland du (Alto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6b17c0692496fce03331aa392b9bd62197089aead651a9198e715becc5a12d. 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/QMDA62171639.
St. Matthew Passion, BWV 244: Part I: No. 6. Aria: Buss und Reu (Alto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1d47686b750967c67e597e3c4fe001d870d6178ea4860dde4437f83646c14e. 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/QMDA62171640.
St. Matthew Passion, BWV 244: Part I: No. 7. Recitative: Da ging hin der Zwolfen einer (Evangelist, Judas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f9984945b1b5c41fb42b1bed8d407c6654a6ee2dee0570d54b5a206e63d9f4. 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/QMDA62171641.
St. Matthew Passion, BWV 244: Part I: No. 8. Aria : Blute nur, du liebes Herz (Soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb6e052d0a807ff71820f7a2031a5f2933fd42454e9bee4fe597d69ff7eb2be. 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/QMDA62171642.
St. Matthew Passion, BWV 244: Part I: No. 9. Recitative and Chorus: Aber am ersten Tage der sussen Brot (Evangelist, Chorus, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd432f03521fcd8b68cd8e37fa4de4a747197f7d9d77ff4c984200107b459f479. 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/QMDA62171643.
St. Matthew Passion, BWV 244: Part I: No. 10. Chorale: Ich bin's, ich sollte bussen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8246085ff4f5b62952303d2162e798b9a911e3b6c38b6abdc37b8b2fa19688. 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/QMDA62171644.
St. Matthew Passion, BWV 244: Part I: No. 11. Recitative: Er antwortete und sprach (Evangelist, Jesus, Judas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41be5862ebd03d2a68a3ceb3439b7bb8c439c01d086fb8cfef16472a04c295b3. 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/QMDA62171645.
St. Matthew Passion, BWV 244: Part I: No. 12. Recitative: Wiewohl mein Herz in Tranen schwimmt (Soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290d0985b730ad252863a555d8b082b2f2ece57b1e12e156ae592cff03f419ee. 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/QMDA62171646.
St. Matthew Passion, BWV 244: Part I: No. 13. Aria: Ich will dir mein Herze schenken (Soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e45972795bafb412073e982141c0eb0ab8d7377ee6d9a326f569b496603f9c. 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/QMDA62171647.
St. Matthew Passion, BWV 244: Part I: No. 14. Recitative: Und da sie den Lobgesang gesprochen hatten (Evangelist, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325cb429de651003cd8a1689452313249658fd9424d5a5d01814c8be988a236f. 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/QMDA62171648.
St. Matthew Passion, BWV 244: Part I: No. 15. Chorale: Erkenne mich, mein Huter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4369231c768ab40226844b1b6115823b38d70c805295ef1911401f56e6e2ca3. 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/QMDA62171649.
St. Matthew Passion, BWV 244: Part I: No. 16. Recitative: Petrus aber antwortete (Evangelist, Jesus, Petrus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265bf52e98bc093265a37a372150999f7708cffe63a4a4d828942564f7e51f3f. 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/QMDA62171650.
St. Matthew Passion, BWV 244: Part I: No. 17. Chorale: Ich will hier bei dir stehen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1801d9ed71c8b3da2778eef77734c17d9cee348c0949669eb1ae7f984a1220. 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/QMDA62171651.
St. Matthew Passion, BWV 244: Part I: No. 18. Recitative: Da kam Jesus mit ihnen zu einem Hofe (Evangelist, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcba7af9097bf73d5184d3eb88f6e003a3525f7b05c1fa236132a597a07d5d3. 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/QMDA62171652.
St. Matthew Passion, BWV 244: Part I: No. 19. Recitative and Chorale: O Schmerz, hier zittert das gequalte Herz (Tenor, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b00c531c08ed1dc904cac2d1af45464069c25f914cc3d0cdf64d7030ecfdd8. 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/QMDA62171653.
St. Matthew Passion, BWV 244: Part I: No. 20. Aria and Chorus: Ich will bei meinem Jesu wachen (Tenor, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06cee96ef394f0b89b74f2d106ceee3a709c36313b3594d03396c6b37108f11. 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/QMDA62171654.
St. Matthew Passion, BWV 244: Part I: No. 21. Recitative: Und ging hin ein wenig (Evangelist, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c3f33a99ee5664c11e4ac432a7831483be17d6238959826a47bf66a10bc279. 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/QMDA62171655.
St. Matthew Passion, BWV 244: Part I: No. 22. Recitative: Der Heiland fallt vor seinem Vater nieder (Bass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e877b1d37e813c89fe5b857a19b1e46fc03a2038e6f8815306ff896af476d66. 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/QMDA62171656.
St. Matthew Passion, BWV 244: Part I: No. 23. Aria: Gerne will ich mich bequemen (Bass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2bfdf9305644393b5d053efe3ddeb530c8abcb96c30f1f535ebf5207609a9c. 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/QMDA62171657.
St. Matthew Passion, BWV 244: Part I: No. 24. Recitative: Und er kam zu seinen Jungern (Evangelist, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ddc6cec7155f075dfe778c55e37e8e4b5dfe7a99951f09a86bcfb276c3c42b. 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/QMDA62171658.
St. Matthew Passion, BWV 244: Part I: No. 25. Chorale: Was mein Gott will, das g'scheh allzeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8945319588f772471f32a08d2a4e760a4620b17b6fd447bd1de8e86ef60a0678. 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/QMDA62171659.
St. Matthew Passion, BWV 244: Part I: No. 26. Recitative: Und er kam und fand sie aber schlafend (Evangelist, Jesus, Judas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71561debd7e2c54ca534c646f6fd55bfd75b4a5e08b530f2dd6cfbcc93d1774. 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/QMDA62171660.
St. Matthew Passion, BWV 244: Part I: No. 27. Aria and Chorus: So ist mein Jesus nun gefangen (Duet Alto, Soprano, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85dc42d887f638e86b6fd6e8a61cb5c7c5cd7249c607e0ec3e51de4a15c9401. 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/QMDA62171661.
St. Matthew Passion, BWV 244: Part I: No. 28. Recitative: Und siehe, einer aus denen (Evangelist, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6827adc3f0aca458f57af6ea67b6bc66b1161dcdde581ca40d910acc0dc149be. 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/QMDA62171662.
St. Matthew Passion, BWV 244: Part I: No. 29. Chorale: O Mensch, bewein dein Sunde gross
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ef52e0a4583d4ae726fdc7891b4942b490468fc9497403723b946e3ef0f2a9. 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/QMDA62171663.
St. Matthew Passion, BWV 244: Part II: No. 30. Aria and Chorus: Ach! Nun ist mein Jesus hin (Alto, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7963d792c0979c843b89d73146c6e01dd087ccc751b1a57df3b79d9b79f2ab3. 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/QMDA62171664.
St. Matthew Passion, BWV 244: Part II: No. 31. Recitative: Die aber Jesum gegriffen hatten (Evangelist)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c34866e7594274703f45b1e3226d7d8d42c4083c12aa97397d6adc036e1ce8e. 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/QMDA62171665.
St. Matthew Passion, BWV 244: Part II: No. 32. Chorale: Mir hat die Welt truglich gericht'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54cbba0e31c55ef0cebfb91bc137f192a93dca1055de8b4e8ac644e3afc5bff. 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/QMDA62171666.
St. Matthew Passion, BWV 244: Part II: No. 33. Recitative: Und wiewohl viel falsche Zeugen herzutraten (Evangelist, Testis, Pontifex)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d3a84b31246958469935f8f84860148181c9431c8fb5331c4c728f29f5e492. 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/QMDA62171667.
St. Matthew Passion, BWV 244: Part II: No. 34. Recitative: Mein Jesus schweigt zu falschen Lugen stille (Tenor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbb7a371a626ece7eea425dd503552d63899e1b9570b058040195b51230fc42. 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/QMDA62171668.
St. Matthew Passion, BWV 244: Part II: No. 35. Aria: Geduld! Geduld! (Tenor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b9931ac7bcf46445cdfcd6deb98256bd20779183c8db464264cfec4e39761c. 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/QMDA62171669.
St. Matthew Passion, BWV 244: Part II: No. 36. Recitative and Chorus: Und der Hohepriester antwortete (Evangelist, Jesus, Pontifex, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872cf5ad8346e1b8552464a6a84d20942c29478f3155a11a66c92d6cd088bf7f. 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/QMDA62171670.
St. Matthew Passion, BWV 244: Part II: No. 37. Chorale: Wer hat dich so geschlagen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7248400e856115e81cf678d176e9c412cca28326aafb3fe038c4bf0049739544. 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/QMDA62171671.
St. Matthew Passion, BWV 244: Part II: No. 38. Recitative and Chorus: Petrus aber sass draussen im Palast (Evangelist, Petrus, Ancillae, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984f7cae8f8045e81a781ee7891e97987c8210247beb2a605706dceed7ba339d. 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/QMDA62171672.
St. Matthew Passion, BWV 244: Part II: No. 39. Aria: Erbarme dich (Alto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e2e88bab2e425ad1173ec35b3986481b395107e6f611131a98701455cc0411. 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/QMDA62171673.
St. Matthew Passion, BWV 244: Part II: No. 40. Chorale: Bin ich gleich von dir gewichen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5774be111988856003ef21324c0ccd267eca99053508972c0abbbe963d9cd9. 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/QMDA62171674.
St. Matthew Passion, BWV 244: Part II: No. 41. Recitative and Chorus: Des Morgens aber hielten alle Hohepriester (Evangelist, Judas, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc8d6323010ab834672095115e4d3be323c649f5a28ba3ba65305cbe4c26cfa. 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/QMDA62171675.
St. Matthew Passion, BWV 244: Part II: No. 42. Aria: Gebt mir meinen Jesum wieder (Bass)
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St. Matthew Passion, BWV 244: Part II: No. 43. Recitative: Sie hielten aber einen Rat (Evangelist, Pilatus, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b7c56a1ae29dea6e6286fc61fd0b360fc3b7fd3172a899f4f79d8cd45b494b. 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/QMDA62171677.
St. Matthew Passion, BWV 244: Part II: No. 44. Chorale: Befiehl du deine Wege
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St. Matthew Passion, BWV 244: Part II: No. 45. Recitative and Chorus: Auf das Fest aber hatte der Landpfleger (Evangelist, Pilatus, Uxor Pilati, Chorus)
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St. Matthew Passion, BWV 244: Part II: No. 46. Chorale: Wie wunderbarlich ist doch diese Strafe
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St. Matthew Passion, BWV 244: Part II: No. 47. Recitative: Der Landpfleger sagte (Evangelist, Pilatus)
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St. Matthew Passion, BWV 244: Part II: No. 48. Recitative: Er hat uns allen wohlgetan (Soprano)
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St. Matthew Passion, BWV 244: Part II: No. 49. Aria: Aus Liebe will mein Heiland sterben (Soprano)
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St. Matthew Passion, BWV 244: Part II: No. 50. Recitative and Chorus: Sie schrieen aber noch mehr (Evangelist, Chorus, Pilatus)
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Johan Helmich Roman – A Musical Portrait
Svenska Massan (Swedish Mass): Ära vare Gud
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6bbce97c97708feda4c440a9ba98f9e7597d8f8c7bec289f41370efa4315c6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USB8U1041670.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76499d1cf040c6f06697c356c621e78a89db26ef7df62246d8e783c2f1ad9fd3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRZ119000170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8592449509e2666d96e4169239c9140b048c6247a8fc605363a5923100539c19. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FRZ119000150.
Szenen aus Goethes Faust, Part Two: Nr. 6, Fausts Tod: "Herbei, herbei! Herein, herein!"
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Scenes from Goethe's Faust for Solo Voices, Chorus and Orchestra: Part One, Nr. 3, Szene im Dom: "Wie anders, Gretchen, war dir's"
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Szenen aus Goethes Faust, Part Two: Nr. 4, Ariel, Sonnenaufgang: "Die ihr dies Haupt umschwebt im luft'gen Kreise"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bea32b971750e4b1d37b3b9dd16b7a5122aab72dcd8120da9f276f66e4c086. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USSM10312180.