1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x74f83ec95cebf0b8e91bee9921bcc2da35aa96704edbebc028a7e6c434cbb51c. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd5d8854-e6c4-4e7a-94c0-846e8d369477.json and https://artists.proofprofile.net/proofs/artist/dd5d8854-e6c4-4e7a-94c0-846e8d369477.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Membra Jesu Nostri, BUXWV 75, cantata I ad pedes: I. Sonata
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 → block OTSBitcoinBlock must exist at that height 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 0x965e2124da3b32e923497368da802c283ae26499050c9f39141879d9a649515d. 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/NLY332104788.
Membra Jesu Nostri, BUXWV 75, cantata I ad pedes: II. Ecce super montes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fbee06199ce9affbcce00ff763c8d9ae772b8d52847e71189873c749306b7b. 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/NLY332104789.
Membra Jesu Nostri, BUXWV 75, cantata I ad pedes: III. Salve mundi salutare
Membra Jesu Nostri, BUXWV 75, cantata I ad pedes: IV. Clavos pedum
Membra Jesu Nostri, BUXWV 75, cantata I ad pedes: V. Dulcis Jesu
Membra Jesu Nostri, BUXWV 75, cantata I ad pedes: VI. Ecce super montes
Membra Jesu Nostri, BUXWV 75, cantata I ad pedes: VII. Salve mundi salutare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d14d40da104c2f7a8192b05eee9226feedc259f276c250c5af1cef45c358e8d. 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/NLY332104794.
Membra Jesu Nostri, BUXWV 75, cantata II ad genua: I. Sonata in tremolo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ba2bfc55f7629f5b4352c804003aa2fc53956c29fb24b64197034435551f15. 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/NLY332104795.
Membra Jesu Nostri, BUXWV 75, cantata II ad genua: II. Ad ubera portabimini
Membra Jesu Nostri, BUXWV 75, cantata II ad genua: III. Salve Jesu
Membra Jesu Nostri, BUXWV 75, cantata II ad genua: IV. Quid sum tibi responsurus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668b96233ac4dc0a15edd6a23d91996d2747214c416b4db45e4e95c8089912d2. 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/NLY332104798.
Membra Jesu Nostri, BUXWV 75, cantata II ad genua: V. Ut te quaeram
Membra Jesu Nostri, BUXWV 75, cantata II ad genua: VI. Ad ubera portabimini
Membra Jesu Nostri, BUXWV 75, cantata III ad manus: I. Sonata
Membra Jesu Nostri, BUXWV 75, cantata III ad manus: II. Quid sunt plagae
Membra Jesu Nostri, BUXWV 75, cantata III ad manus: III. Salve Jesu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09eb8560d7a2749887bb0952960218386c0fed55c755f0bcc83fcceb7db2dabd. 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/NLY332104803.
Membra Jesu Nostri, BUXWV 75, cantata III ad manus: IV. Manus sanctae
Membra Jesu Nostri, BUXWV 75, cantata III ad manus: V. In cruore tuo lotum
Membra Jesu Nostri, BUXWV 75, cantata III ad manus: VI. Quid sunt plagae
Membra Jesu Nostri, BUXWV 75, cantata IV ad latus: I. Sonata
Membra Jesu Nostri, BUXWV 75, cantata IV ad latus: II. Surge, amica mea
Membra Jesu Nostri, BUXWV 75, cantata IV ad latus: III. Salve latus
Membra Jesu Nostri, BUXWV 75, cantata IV ad latus: IV. Ecce tibi appropinquo
Membra Jesu Nostri, BUXWV 75, cantata IV ad latus: V. Hora mortis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770af9db014deee0d8325797d1f46465ff6a5814fd0508a7d69e736077c9a496. 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/NLY332104811.
Membra Jesu Nostri, BUXWV 75, cantata IV ad latus: VI. Surge, amica mea
Membra Jesu Nostri, BUXWV 75, cantata V ad pectus: I. Sonata
Membra Jesu Nostri, BUXWV 75, cantata V ad pectus: II. Sicut modo geniti
Membra Jesu Nostri, BUXWV 75, cantata V ad pectus: III. Salve, salus mea
Membra Jesu Nostri, BUXWV 75, cantata V ad pectus: IV. Pectus mihi confer mundum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9ad9d74275c15842673a27fbf4d0aad565cc20fb257c9f1814f431fe4adc18. 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/NLY332104816.
Membra Jesu Nostri, BUXWV 75, cantata V ad pectus: V. Ave, verum templum dei
Membra Jesu Nostri, BUXWV 75, cantata V ad pectus: VI. Sicut modo geniti
Membra Jesu Nostri, BUXWV 75, cantata VI ad cor: I. Sonata
Membra Jesu Nostri, BUXWV 75, cantata VI ad cor: II. Vulnerasti cor meum
Membra Jesu Nostri, BUXWV 75, cantata VI ad cor: III. Summi regis cor
Membra Jesu Nostri, BUXWV 75, cantata VI ad cor: IV. Per medullam
Membra Jesu Nostri, BUXWV 75, cantata VI ad cor: V. Viva cordis voce clamo
Membra Jesu Nostri, BUXWV 75, cantata VI ad cor: VI. Vulnerasti cor meum
Membra Jesu Nostri, BUXWV 75, cantata VII ad faciem: I. Sonata
Membra Jesu Nostri, BUXWV 75, cantata VII ad faciem: II. Illustra faciem tuam
Membra Jesu Nostri, BUXWV 75, cantata VII ad faciem: III. Salve, caput cruentatum
Membra Jesu Nostri, BUXWV 75, cantata VII ad faciem: IV. Dum me mori est necesse
Membra Jesu Nostri, BUXWV 75, cantata VII ad faciem: V. Cum me jubes emigrare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b3c05f03156b306ea7376e2ce1d486edef43ebaf6969638bcc5883eee271fd. 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/NLY332104829.
Membra Jesu Nostri, BUXWV 75, cantata VII ad faciem: VI. Amen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8813f9cd4afef15740ac163cd8297ee6a9d8e5ea349d17b4c2138bee90b0e211. 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/NLY332104830.
Matthäus-Passion, BWV 244, Pt. 1: No. 16, Petrus aber antwortete und sprach zu ihm (Evangelist, Petrus, Jesus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccab50ef713663b7a8a378bab9579baff33410b4562be4d2ef1fd6ff4a216233. 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/NLA460911578.
Matthäus-Passion, BWV 244, Pt. 2: No. 4, Und wiewohl viel falsche Zeugen herzutraten, funden sie doch keins (Evangelist, Pontifex 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923fe871ac3f49e9d35e67b7e909b87afd17aa87ae2a55c87eaf9aef81446463. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/NLA460911595.