Hermann Oswald is a German tenor in opera and concert. Oswald received his first musical training as a member of the Tölzer Knabenchor. Among his operatic roles were Monostatos in Mozart's Zauberflöt
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 0x6ecac9b16bcf349f1fa7bd22808e84587c0353917ace986027c7a94fef4d7821. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c3a392e-8903-4faf-9296-2326a7e44b29.json and https://artists.proofprofile.net/proofs/artist/0c3a392e-8903-4faf-9296-2326a7e44b29.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mass No. 11 in D Major / Gloria: IIb. Qui tollis
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 0x44631bcc21456840acc3a39f183cc5f1077f0069c9b914601ffeeb7b00927080. 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/DEB111500703.
Mass No. 11 in D Major / Gloria: IId. Cum Sancto Spiritu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf192ec07ab74c31b5e05d3284e2bad3daae3a25bba441015cd2ab72941e33505. 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/DEB111500705.
Mass No. 12 in D Major / Kyrie: Ia. Kyrie eleison I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97364b4f7ccb36a813dcf7fc91fb3c8ba92ba9655b7c6b60e9a9ab47f605b883. 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/DEB111500717.
Mass No. 12 in D Major / Kyrie: Ic. Kyrie eleison II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16f4bfcbaa8dbb7ff3b035021db8898667415c4d5c321c1a204ccdbaf2268cf. 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/DEB111500719.
From The Music Library Of J. S. Bach, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca44c8301a2e7094787f6a21e95db8972bfb6a993738a1c0612c4e0eecbd38c. 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/DEA550106488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e8374dc1bb150794c14508ef663e97ac11b9a404fd0e7a49205f1a33c19e8b. 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/DEA550106492.
Christ lag in Todes Banden, BWV 4: Versus I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07b64d494416bb68d8281e8a67962b9bbd7944f7ee4e52cdded8ad0038c3ff0. 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/DEA550106497.
Durante, Astorga, Pergolesi / Sacred Works
Magnificat in B flat major: Magnificat anima mea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3fb46237c928e47717267db90bc9b6672a2eb73610e3c9ff9c88ba9ee298f1. 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/DEE479700275.
Magnificat in B flat major: Et misericordia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4821a559a8decd5975a2e864282c31307d9923a53317cc44b81a42ca54817eb5. 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/DEE479700276.
Magnificat in B flat major: Deposuit potentes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0372212aa25b162bdc8c9f27c336841921b3160511431fd4c516eb4ff553cdda. 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/DEE479700278.
Magnificat in B flat major: Suscepit Israel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e2824cbe74aab4849207fb524f2747a2ab9a2630b6fb29d64845c4ff0e66df. 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/DEE479700279.
Magnificat in B flat major: Sicut locutus est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27946fac4d46a3d4c162110e49865fd59f35ba85f11548f83e8ef1426ba56776. 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/DEE479700280.
Magnificat in B flat major: Sicut erat in principio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40dbee8c90c20d8caf01711a5cd84aff38578d1524d06585916c587d5a13458. 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/DEE479700282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d10f5fa2e0ac530c321795e649f922a94a94f7aed096923a343a69ebde91b2b. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/DEE479700284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d5b3a89c19c371c11a6e38b95b42066b79ef2aad86a10bbbd1241f9e3919ae. 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/DEE479700286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774298ab0da39dca8d4cede006320d2aedbf4dad7d812f31a10dd52fbd9fcf2c. 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/DEE479700287.
Stabat mater in C Major: Christe cum sit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abeef27d7114b1a88e0c9ce7a854a89224fbe550af7bb56ac1cf3ba6eabd9f1. 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/DEE479700291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d44f4c0cb0523dd241d86bb678acae5fa785749e109ba751c1afec0135cd0d4. 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/DEE479700228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88870dc546a6f20beaa057d81bb491c28f36b38f6bfbe0c8e8b7046e021a625. 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/DEE479700229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7a030b84c4fa8aff625a47124b2c6ebc01c1eb18d47743ae02b6435b7d04ef. 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/DEE479700230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd01177cb7d01ba924d1e9c2a33a237374e1480374e4da121577d60aa2e8b57. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/DEE479700288.
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
Heinichen: Mass No. 12 in D Major; Bach, J.S.: Magnificat in D Major, BWV 243
Biber: Chi la dura la vince "Arminio" (Arr. W. Brunner)
Kerll, J.C.: Missa Nigra / Delectus / Laudate Pueri
Geystliches gesangk Buchleyn (Excerpts): No. 1, Nu bitten wir den heiligen geist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c348b786bb8671841da0768392322c375ac942bb479f3cdee9bf84149632e31. 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/DEB201613401.
Festmusiken zu Leipziger Universitätsfeiern (Jubiläums Edition)
J. S. Bach - Motetten (Meines Herzens Weide)
Monteverdi, C.: Vespers for the Feast of the Ascension