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 0x3678af39a082b3f2a0684b016017cefbc448d6815bb6dee8322e359f81c2be3a. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2174a4f6-d36b-450e-a185-042785ddc933.json and https://artists.proofprofile.net/proofs/artist/2174a4f6-d36b-450e-a185-042785ddc933.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sonidos de Pasión - El piano cofrade de Elías Santiago
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 0xa9576543981d77bc402f25cc35425196865262a3667524b8ea4e8e5e48921145. 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/QZTB92308981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c548036b87a815cdc47923e7e218e2ce7f36b04f46ab53d51b4b8e1faf58b44. 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/QZTB92308983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56eb3c805c25a5a014d36ccde6ba5c70416de6a8799db8b7b85b669eb9a06ed0. 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/QZTB92308985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45692245394cfdf6d7679a677e140d02d79a914643174345c16c14ad4233271f. 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/QZTB92308986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ac45b34a3d32057ef15ee01203cf2dd4f94cea30a2fac935ba62427b25b971. 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/QZTB92308989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18748dce53298723635adbe7c742c740f8188b6717fd9041a8e6cb51de56bc5. 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/QZTAW2350536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc78d907d1c739fa57d7889da266d771c2d8cd6db373ca57bce2b1ac3e446f2c. 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/QZTAW2350538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77535468090cb16599747b84bb15cabc8f49378e7621b97f603fa15417cee836. 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/QZTAW2350542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2587d2e8f18e503153c11c03a79d90e74f7556935f08005294510946f4726428. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/QZTAW2350546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec19d5d8f1cf2fe05f44932c53de380da29020049bf57954a0cab7b339754c2. 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/QZTAW2350547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedf3278daf09dff70def5ce818512ac94d62ad0c26541cd67e62e94a970baec. 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/QZTAW2350548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d0ba33e8a344b9273def0a2d8e0ec09976289489fb3b19370debbf6910bdbb. 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/QZTAW2350549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d24b7a4e1d051bd728b4a3485595f9ba23a277ea76e54e666e15afef7eb93be. 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/QZMEM2242931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf4cdf3df6442625b11aa7d67bd6dc19bead4f66fe26ea4413231b9eb12d390. 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/QZMEM2242935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0a000410004854d59d4e132dfc15c7c68d29a81332766082853eaa8deab3f5. 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/QZMEM2242939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2759ad99159007145a028f6700c03480fe578a1f639dc2269431ac0237720e7. 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/QZMEM2242941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cd10b308445d07eec9e87808a447ae14d2713ddad9ea3ecda4ea8ecc246197. 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/QZES82466780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d11b8d1b0f81f20f2fcc74cec1cd354b2c7e0eed3e410a1337dbc1cfb43e4e9. 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/QZNWW2377335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1e32d2839308df480a03b69a56d6f0365b0588198bf73c58123160f4416fd7. 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/QZK6N2350868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e22095441c2b8814b8e1cd384471e94fa4907f9f330612978451c871c2ac51. 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/QZHN82367549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b94515bd928c621166d2d7e0ee2064834e70f45667b751d6357978380c07b8. 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/QZHN52374757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773b954c247e8f277568bb72cb4bcd00a58e83380c0d1b065eec64ee63b24da4. 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/QZFZ42303170.