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 0x8a96867e8ed7dbb4fafcaa9265d619fece0876db5433749f243ce1f52b5b66b5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff696548-9b21-4a19-a708-8483196ec136.json and https://artists.proofprofile.net/proofs/artist/ff696548-9b21-4a19-a708-8483196ec136.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mystical Voices: Timeless Wisdon for the Present Moment
Michael John Trotta: Totus tuus – Sacred Choral Music
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 0xa719ec9fe68d25dd80ae512c466bb4bf8589500046b3861979ce387f5e0c289d. 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/QM7AT1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb2ea1012bc5748fbffe3ed0af476c181ba8747ea8180b38515640757bd8658. 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/QM7AT1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb71e588f4aa15e2b031d67824c891d1eca3e447549ef63dfb76e4ad6397f38a. 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/QM7AT1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7368d0f063be9bee295a746a71a495594c0ae7eb65692dd8f66bdd0ce8621e7d. 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/QM7AT1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8879b6f5802318ee2ff5b3e4f0b4bfd85e70e6573292e3a994182762ad19d532. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM7AT1600009.
Michael John Trotta: For a Breath of Ecstasy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bab8f8dd8aaad089ee01330893d9927a7014f7810c0d740c6d91c38995f74d2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBSMU8391655.
Michael John Trotta: Intimations of Immortality
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201cf10697b65c3c6ece56340fa18e4efc4326fc2d58682211f31bbc88ecab12. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:01:55Z), 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/QZZEB2314400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4b64caaf3d24ad271e70a0dd13b6cb3b73dc6134d19f205e0b523f967229e2. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZ5FN2417384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c9db9703cf49c02cb76072bf0f71e24b10787da16b8e168ab3f6d0e294e5a2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ5FN2417386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb05d437b3f05c2cd12333a531a0f574caf91417f2275c57531e877c001e3a7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZ5FN2417597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e710f05a3866f510f4d0039cc8f28fbaac14642c0f2fae21991efcbc3861fe. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZ5FN2417599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026d9e6f6efdf35a36bc6381956142da82a7ddc7557a2c9d5e40ba08fe894cd7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ5FN2417605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd688f7bbe0fcd28f2e3b444c767b6423862cbca559e4705eac4b3c97753f53ab. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ5FN2417633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb65bb505a2d7d5806a2031928f302eceb349e08902551b5ddb4d3dd6e637a5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZ5FN2417608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291089e6ea12ed0b04af9144b9f321add6df659eea445e806f4d1d81ec5548dc. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZ5FN2417622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0730ca9d22ffd4f69c58c8bd216877ebfeaf1a82e90cc782b181be0920243137. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ5FN2417625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acfdd86a1732d8e45e9b4d435e7c94b707c4574d1a782ea291d597deb0e2b87. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWDE2507941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099335780fbbd83ae676ee8aa8110c4e707bb6ab32f63fda3456493610eec13d. 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/QZWFN2381406.
University of South Dakota Chamber Singers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666c37170d20a2bdbae0d977a67012b3888da0bfc0bcb4618b2272fcb9216c81. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USPMZ2419701.