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 0xa34ea45aa3a9cb96d3826c5aa8bdc84abf56d0a189c46bdf388ff845992df083. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e425f6b6-f69d-4451-90eb-8224e7069ecb.json and https://artists.proofprofile.net/proofs/artist/e425f6b6-f69d-4451-90eb-8224e7069ecb.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 → 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 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: 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: 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 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 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 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 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.
Membra Jesu Nostri, BUXWV 75, cantata I ad pedes: III. Salve mundi salutare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6561b42ad5c0f429fad032066e01906cb36ebfd1397932af49983436c20ef762. 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/NLY332104790.
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
Membra Jesu Nostri, BUXWV 75, cantata I ad pedes: IV. Clavos pedum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec7de6033537141d2b77bea59fdbee98bf7110521738d6d0b529d529258e628. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NLY332104791.
Membra Jesu Nostri, BUXWV 75, cantata I ad pedes: V. Dulcis Jesu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653a3571fb9fbc86b8856fd2639b47ac7db0123c941b51ecdd5a63d13f66faf0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLY332104792.
Membra Jesu Nostri, BUXWV 75, cantata II ad genua: II. Ad ubera portabimini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3733a2a148248dd2693173fe88e1075d4ba541353c4fc4493492913c27fc7f28. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/NLY332104796.
Membra Jesu Nostri, BUXWV 75, cantata II ad genua: III. Salve Jesu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c13ebdec042f5d2ba933b572a4fe49e550b73ce11af6ea63e2571b48c02105. 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/NLY332104797.
Membra Jesu Nostri, BUXWV 75, cantata III ad manus: II. Quid sunt plagae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdd48f9cedcd43c32e12a36c2a82c5f0c1293971c7ba085a48513734b99d878. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/NLY332104802.
Membra Jesu Nostri, BUXWV 75, cantata IV ad latus: II. Surge, amica mea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463600f6408842a011235acfdf3d224ecaba780d0a7057e656b4909f4f44a57d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NLY332104808.
Membra Jesu Nostri, BUXWV 75, cantata IV ad latus: III. Salve latus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3926768386f909e94a255db50ed14ed3f34ee2f212a80335ee3012995c0a44c. 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/NLY332104809.
Membra Jesu Nostri, BUXWV 75, cantata VII ad faciem: II. Illustra faciem tuam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69195499b63cdc3a9515847f7ff945b17f1f37c0cd03a4843b0a9f16ab22b47a. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/NLY332104826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a231e6ae1c6dba45540a5ba51cafd4c62f470c3155e0f0342b7b5dea22d6a1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BER181840105.
Magnificat in D Major, BWV 243: VI. Aria (Duetto) "Et misericordia"
Bach: Magnificat - Handel: Dixit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a992d1496238e97503659e9da4c1e9c4e9ec4bf3621d753e5a3663d8c049fd. 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/FR50X1737006.
Ein feste Burg ist unser Gott: Luther and the Music of the Reformation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4cbd4e8af9a3c805c8175c9ab164cde2a9d94aba4901f8af9f689f69059d8a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BER181637603.