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 0x1dbd54cc26b2058d813c21b56b17150bb2dc1f3ac520e7d2ae2c32fd77427be7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e2fa5c2-429d-4526-9516-b1ec16b5aa2b.json and https://artists.proofprofile.net/proofs/artist/3e2fa5c2-429d-4526-9516-b1ec16b5aa2b.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 0x8ce646daee9adf324d3eee3608a0e47e2d63c4baf7d91de286443e395ae4b2a0. 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/CA5KR2427004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccb4278c3428803b58e7cf7e53d8dfbe09079c0b808b655927b23182d16c98f. 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/CA5KR2427005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b3dad2f6d06c546d054991d701706fe3df299da314e3faa8a9a345df7cc6d3. 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/CA5KR2419713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaef4ef8b5a8cd0b34594d905259cd3b58a2771dcf28ac3af7c95663128110c1. 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/CA5KR2427008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01613767befe129b78db6b18f645c15fe179ec3ef0531bf2f767181b71ca5243. 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/CA5KR2427009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05bd47b57fce0722ac160687fd340e20b4e1258c2030b02c143bb615be48dc5. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/CA5KR2427010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadb1ed4ca7341f6f7c2f36ad0fad5a6fec0e605916615831809cf12381bc838. 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/CA5KR2427012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1e6c30a190f32a331ed00ffacbb64f4c98390365e6160a5c6abcaa808261bd. 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/CA5KR2427013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6998f89de519b2452a7f165a8ccbdbe85b9c9f07638d64a1c9a7c28bf84aba2. 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/CA5KR2392950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ce637c10e736b3a23995d1155d4efbbd3afbc9961935abafcc79b21ec5b0a7. 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/CA5KR2427014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba7e8d921176d41f344cb035878426ca95d32c319a77ebf59e96b8e7e6f886d. 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/QZHN32019492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604dc18e6dd8e77060f44c3c991b205fb6b313b42f6099c5f5adaece7f802822. 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/QZES62049762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09635bf72fcfed71d4f615de90263337a7077c588f6b8b89e2dd59736db67da1. 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/QZHN32019499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf288ca01b461fbfe22a1992330f4175537e9450660b7e359e2603e84b6b13de. 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/QZDA62013210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402f13ac062c48fb9ee222b8f16f2da33d5a7c30166a13b2d4be7bc1d64f3fa6. 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/CA5KR2334719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ff50fdef7ff97d82ca842a0a2d65c86b5f7df472304c773aa27b8623505b95. 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/QZ8WX2076425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecf93c4328266c4abfcff57952c7f4743c92bb68941dbda4db07f84245da9c5. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZFZ72259376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4dd74a377a3b82e13964fea996d3755b0ec491f25a2dd79871777c971f52f7. 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/QZNWT2027163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535e14b81d22cd2763bd823fcd85fd7d39d746c2de8c6a9051d977bc00cc7c5e. 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/QZMEM2167573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe498b9d5e2963ce96cfade7294554b261abb5dd208c5b4ff74f0e83e9c8151f4. 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/QZDA72171359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe498b9d5e2963ce96cfade7294554b261abb5dd208c5b4ff74f0e83e9c8151f4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZDA72171359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4dd74a377a3b82e13964fea996d3755b0ec491f25a2dd79871777c971f52f7. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZNWT2027163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629a942c6a59c1795235b11f21cf58fadc5aafe1ed6daaf7dda8fddb2504fa6a. 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/QZNWT2025475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604dc18e6dd8e77060f44c3c991b205fb6b313b42f6099c5f5adaece7f802822. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZES62049762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c687ad2a681ddd173f4f20715b63a077422a94e223113b8885d11b2ef424fb. 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/USUM71821449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04142577af4a16d9d03ce7c1e84c829bc1494b53695a6d555dedb06556485b99. 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/USUM71902259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bec182ab4bfe98996fb59955eba31682a214975d9ed3e9540235af78c39c159. 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/USUM71901140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd694bbd14fb65ca87b5a22b39a7e845a125c546beccace4cbe3489d2ff5222. 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/USUM71901142.
Harder Than Ever (feat. Jay Gwuapo & KJ Balla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba982fefabc668dfb955c92a1fc4a2cc1841d39530c494029fff948660b7642. 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/USUM71901144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c129b3fd41f1cbf2a8c8ed93d3262d2b92bb2e587e254f35a46fb125ae49d02. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM71819796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48fb19d3eaa6edab0fe816691db50473aa8910313029cd3184e892237c1ae42. 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/USUM71817183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa632a7a00f0f750e134fd8245b6d892b3c0d7f494d17c6a81b939e6e5d36bcf9. 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/USUM71819298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48fb19d3eaa6edab0fe816691db50473aa8910313029cd3184e892237c1ae42. 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/USUM71817183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dec14045ea290e81d8e8fa11ccd09ed927c3995a4ad9596b46e686a52ddd049. 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/QZJG51976789.