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 0x5ab2d4c9b0c3d1d7d4e00d8a545be21d53b31af5df47b8f2f8946e6c92f27b43. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a63beff0-029d-4faf-9d43-02e1f3692340.json and https://artists.proofprofile.net/proofs/artist/a63beff0-029d-4faf-9d43-02e1f3692340.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x3611e6dd83c9048c6c19aeae91a082da54d5012e34772f3471c66c363373ba24. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/US3U82000149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78095de0c9bf2049527a96ee73aa2c70557baa2ca2d05b39633e340455a282fb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAGB2213939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e53087c53e5be6070b93853da0acc10ae948531c9562212246f5acfc85dcb2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZVR22200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb373cc92bc164b39e23c8eba8d98a80f41e34a3c7d0ec68e3ae3e161abec006. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZVR22200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6d0217cf76de37a68b55fca41a68ec3aebad8a1d5a56184fd79fb5e43016c1. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZVR22200144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71893b7b3a1ca608598719c64c909aa2d2ad8b990803d9225f55c193412e83ee. 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/QZVR22200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b39d4faca5b68f3d5f5461dd1b7edf35d7dea055d6c7b2d2dda4b2553380af. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZVR22200131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cf7865a4ee961248f7b70b9e77821cd3f969b047827a090baac16c2281e024. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZVR22200135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15284fab12a1e5851d67ce83e38c56a062e048aa378ef8367ef0b630c1a2fff8. 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/USZXT2352033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15284fab12a1e5851d67ce83e38c56a062e048aa378ef8367ef0b630c1a2fff8. 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/USZXT2352033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccb0153a941f0172bf67b5d6297bf510d8f2b72907888a5a55bcf44bd9fb174. 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/USZXT2352250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fff4f44286de361c2cec6a817991b9eadace44187bf4b0a1aa60a0f571f0d5. 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/USZXT2352427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a63b16dac727a0c04993fd497a52f529de916509a9ec35d0c0705e5fc3fdea. 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/USZXT2352428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7f3dec939e503bac8e9ebc41e9de329a984bba49b0a4100b669619c5ead104. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-21T17:05:49Z), 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/USZXT2352449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084450f3b1e4d375962fdecb8c6206e585884f5c4656d1e483f9c7086db68e35. 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/QZVR22400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084450f3b1e4d375962fdecb8c6206e585884f5c4656d1e483f9c7086db68e35. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZVR22400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccb0153a941f0172bf67b5d6297bf510d8f2b72907888a5a55bcf44bd9fb174. 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/USZXT2352250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7641452969e6829e8a8010074399b84af3a70a8114008aeea2d8e6212f054a. 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/QZVR22400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435c4cc42eaaaecdd0d13c34ca469760850ca1c7521a668a74fa345f03e86d68. 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/QZVR22400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a63b16dac727a0c04993fd497a52f529de916509a9ec35d0c0705e5fc3fdea. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USZXT2352428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7f3dec939e503bac8e9ebc41e9de329a984bba49b0a4100b669619c5ead104. 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/USZXT2352449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8686e0d1556e0cb625664d919a9fca8cfb7b6d4ec0de8b40e5844490ea0bc28e. 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/QZVR22400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15284fab12a1e5851d67ce83e38c56a062e048aa378ef8367ef0b630c1a2fff8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USZXT2352033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbddcaf230585d2c16c62abb2c11422bb78d3d84b8d9d67eaad5c6298df3d9c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZVR22400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cb2cd7af3a3e9d5aa4c47b0d8cd481de58444ecf74fe73228effc5daff2802. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZVR22400127.
Christian Rap and R&B (That's Actually Good)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e53087c53e5be6070b93853da0acc10ae948531c9562212246f5acfc85dcb2. 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/QZVR22200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8686e0d1556e0cb625664d919a9fca8cfb7b6d4ec0de8b40e5844490ea0bc28e. 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/QZVR22400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccb0153a941f0172bf67b5d6297bf510d8f2b72907888a5a55bcf44bd9fb174. 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/USZXT2352250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960c73f8a116284ac99da58d74ca756be09b8fc993ce72abf7bfebb2e9e0d864. 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/QZVR22200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf4d50a241a4e89d63739f3a95c11987c42c2e40f9500e9190706aca80afe65. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZVR22200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084450f3b1e4d375962fdecb8c6206e585884f5c4656d1e483f9c7086db68e35. 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/QZVR22400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fff4f44286de361c2cec6a817991b9eadace44187bf4b0a1aa60a0f571f0d5. 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/USZXT2352427.