Hertha Töpper (; 19 April 1924 – 28 March 2020)"Österreichische Altistin stirbt 95-jährig" by juw, Stuttgarter Zeitung, 31 March 2020 (in German) was an Austrian contralto in opera and concert, and an
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 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 0x181b35472accbd69545916677de87e4896020408d2a51d4963539a78aacd5c5d. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73b78048-00c5-43cb-be5a-253b0ac4e0de.json and https://artists.proofprofile.net/proofs/artist/73b78048-00c5-43cb-be5a-253b0ac4e0de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mozart: Così fan tutte, K. 588 (Sung in German) [Recorded 1957]
Wagner: Die Meistersinger von Nürnberg, WWV 96 (Bayerische Staatsoper Live)
Wagner: Das Rheingold, WWV 86a (Recorded 1960) [Live]
Der Messias, HWV 56, Pt. 1: No. 4, Denn die Herrlichkeit Gottes des Herrn
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 0x2d41c067e7a3bc1f4817bbe48a2f8aea534c90fa4224c66cb2bc4eb71160dcfc. 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/DEHB51282755.
Herz und Mund und Tat und Leben, BWV 147: I. Chorus. Herz und Mund und Tat und Leben
Solistengemeinschaft Der Bachwoche Ansbach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4876ce0498e2f55a418394580287b8da07d84bbd5a556d23eec5ce351efceab. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEF056100172.
Herz und Mund und Tat und Leben, BWV 147: II. Recit. Gebenedeiter Mund! (Tenor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edd7cb9136547c62c39032b7cc653827e3fb918785a64fabe42953e5bc0f42d. 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/DEF056100173.
Herz und Mund und Tat und Leben, BWV 147: III. Aria. Schäme dich, o Seele nicht (Alto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcddfd017aa7f564c127ae55cf932382788118c683cf760f113997ae71b2debf. 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/DEF056100174.
Herz und Mund und Tat und Leben, BWV 147: V. Aria. Bereite dir, Jesu (Soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad9ca6652d0a7c865b5e0c7b150fc1aef1e487f49a0348289b40bae904ff31a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEF056100176.
Herz und Mund und Tat und Leben, BWV 147: VI. Chorale. Wohl mir, dass ich Jesum habe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b4f56fd86da3d775ed0c39512072aac32feb8e0cd7713ae9390ca0d752db21. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEF056103150.
Herz und Mund und Tat und Leben, BWV 147: VII. Aria. Hilf, Jesu, hilf (Tenor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc89a29452d32425bfe497e1c75678628649d265086c2cfb343d319745471dc. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEF056100177.
Herz und Mund und Tat und Leben, BWV 147: IX. Aria. Ich will von Jesu Wundern singen (Bass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c712d9a26360a56c65ae20c12e6d951246245b41424d928c89652fdb1f4e50. 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/DEF056100179.
Herz und Mund und Tat und Leben, BWV 147: X. Chorale. Jesus bleibet meine Freude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b41099f7e1e3cac620bdf4044e3876a92cefc6f6e3d8e452ce9f4d7c14c495. 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/DEF056100171.
Magnificat in D Major, BWV 243: I. Chorus: "Magnificat"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b358f29f1c5fe6b9a551b55994575914501bd32770eea6fb64d91505e5729e3. 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/DEF056130601.
Magnificat in D Major, BWV 243: VII. Chorus: "Fecit potentiam"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35ccb8fd11b4fd7360bd3bc6e7c7b7c5c73206794262bab83a1118f621dd1ee. 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/DEF056130607.
Magnificat in D Major, BWV 243: XII. Chorus: "Gloria Patri"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eb8cac6317889e9c9002ebc5aef0a5fabb2ad3de2e00bb6133391d9fde6619. 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/DEF056130610.
Mass In C Minor, K.427 "Grosse Messe": 1. Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1972122015cca9a3d8235796ca415bafaecd14086a0a88b3573517ca4400bb15. 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/DEF055930313.
Mass In C Minor, K.427 "Grosse Messe": 2b. Gloria: Laudamus te
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260efe6bb62444de0fa5a54d55935fbca1c839a3bfe3a20af4cebc5415e44695. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEF055930301.
Mass In C Minor, K.427 "Grosse Messe": 2e. Gloria: Qui tollis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84e2538c77b65a2c05a262b033189bec16849d9f827cfbd0a5ebec3cc0a388c. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/DEF055930306.
Mass In C Minor, K.427 "Grosse Messe": 3b. Credo: Et incarnatus est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005922e6e43bcb148013332b6510fa60d39f14d6a2ae557e8d0937d8e3f1c806. 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/DEF055930303.
Bach, J.S.: Cantata BWV 140, Magnificat BWV 243
Wachet auf, ruft uns die Stimme, Cantata BWV 140: I. "Wachet auf, ruft uns die Stimme"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7ea4da815e334e0e8c29e0ec7a56cd74e10bfa032fd4fd16bd7adeaef63f21. 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/DEF057803512.
Wachet auf, ruft uns die Stimme, Cantata BWV 140: II. "Er kommt, er kommt, der Bräutigam kommt!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea8a28bec38fed45ebd9515a1df5f4dd4f51425981350d1dc6ff77f4c925476. 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/DEF057803513.
Wachet auf, ruft uns die Stimme, Cantata BWV 140: III. "Wann kommst du, mein Heil?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3d964cdddfab8cb233fa63a1f4dae5548fdce30a887fbc28778f7949108054. 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/DEF057803514.
Wachet auf, ruft uns die Stimme, Cantata BWV 140: IV. "Zion hört die Wächter singen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe700bbd93892bf978f77d08d1a76600630eeebf924a788e073a92d2bcb20b654. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEF057803511.
Wachet auf, ruft uns die Stimme, Cantata BWV 140: V. "So geh herein zu mir"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecdf06e1763d7ac85912559c81ac6a532a36f23b4b197e8b955b5bd1acaf0e5. 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/DEF057803515.
Wachet auf, ruft uns die Stimme, Cantata BWV 140: VI. "Mein Freund ist mein!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a89033edf90a83eaa416c735246743c5d1cc3fe886083b70f51c98f04f3fe10. 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/DEF057803516.
Wachet auf, ruft uns die Stimme, Cantata BWV 140: VII. "Gloria sei dir gesungen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfd1a077ff273298a1dbc3290629b78cd4efb6760b5e4d3a03ba31193c01dff. 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/DEF057803517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b358f29f1c5fe6b9a551b55994575914501bd32770eea6fb64d91505e5729e3. 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/DEF056130601.
Magnificat in D Major, BWV 243: II. Aria: "Et exsultavit spiritus meus"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e2302e20f5baede31220127a3e45230d107689139af7df0690344441286dda. 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/DEF056130602.
Magnificat in D Major, BWV 243: III. Quia respexit...4. Omnes generationes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e3f942c05e0a61061c2c1f802d06cbc8aa4ecc3c6f635776dcd849de241a8f. 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/DEF056130604.
Magnificat in D Major, BWV 243: V. Aria: "Quia fecit mihi magna" (bass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77be55739b8e5f7d71dddef2fc4d33137e5e7729f4c93f41acae643a135011a. 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/DEF056130605.
Magnificat in D Major, BWV 243: VI. Aria (Duet): "Et misericordia" (alto, tenor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d56d935f34cf18f60cb14153dbf84aa0775a8d7acd7ea51d359f8a6d893f09. 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/DEF056130606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35ccb8fd11b4fd7360bd3bc6e7c7b7c5c73206794262bab83a1118f621dd1ee. 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/DEF056130607.
Magnificat in D Major, BWV 243: VIII. Aria: "Deposuit potentes"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e92479b28a19966c27cf0195434dfbc8bda7d0518e299cf815183d0853f89a8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEF056130603.
Magnificat in D Major, BWV 243: IX. Aria: "Esurientes implevit bonis" (alto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc607fa3ac06528f6469a49edf8cc9ae522b3e8f05f1e9ae091e04c26bea37f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/DEF056130608.
Magnificat in D Major, BWV 243: X. Chorus: "Suscepit Israel"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2d39eab4d8bc2d7852e4882f9c973bc25fd7ae6de46f3e702924216064091e. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/DEF056130611.
Magnificat in D Major, BWV 243: XI. Chorus: "Sicut locutus est"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751065284bf7f431a9c4344ce4e577d4aecd04a7d4a7d0da5fbf64f536c9350e. 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/DEF056130609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eb8cac6317889e9c9002ebc5aef0a5fabb2ad3de2e00bb6133391d9fde6619. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEF056130610.
Das Schaffen Johannes Sebastian Bach: Serie A. Kantaten & Serie C. Messen und Magnificat (Stereo Version)
Bach: Messe in B Minor, BWV 232 (Stereo Version)
Bach: Magnificat, BWV 243 (Stereo Version)
Das Schaffen Johann Sebastian Bachs: Serie A. Kantaten (Mono Version)
Bartók: Herzog Blaubarts Burg (Mono Version)
Das Schaffen Johann Sebastian Bachs: Serie A. Kantaten (Stereo Version)
Das Schaffen Johann Sebastian Bachs: Serie D. Passionen und Oratorien - Single (Stereo Version)
St. Matthew Passion, Bwv 244: Pt. I: Chorus. Kommt, ihr Tochter, helft mir klagen (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8b524c9d2e2dde2afa0eecff4d02711ae5088615307f7475b466ab4271a3ff. 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/DEAD61200801.