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 0x27d9dce6c1200249cae81aded566afcff84d0888ea4c928e3842cebbe572e555. 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/7e88fabc-b557-4b68-b80f-9c5e9d533769.json and https://artists.proofprofile.net/proofs/artist/7e88fabc-b557-4b68-b80f-9c5e9d533769.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 0x078b462853f40b97be5d44f3400502001924a17758e46057ac326e35cae4dcfb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T14:07:53Z), 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/NLUW22201826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaceddf471c4b15c6ef85cc40fda8bc79f6bc968a502f44d63d702f1215e2fbf5. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/NLUW22201830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a6f03678e7f3965fa2192a52be38eb3d6990312fe835cd47a360dccfe01dad. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/NLUW22201828.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1244768b1b823928ad893f00212ab29548978d412f2f591ab632556d855f194b. 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/QZU7C2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc1f60a970ea65795239058c038a61fd2123384661c62648f4a845aef1d36fa. 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/DEEC33501949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1672e1c36555c72a74fefc6acb14fcba588f3e41c219015c6ab52eb9865c616. 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/QZU7C2400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62de0191523575cce1e4bd22018cee90d288667d3335cc19d97cac49917a67e. 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/QZU7C2300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b067bf1f9e6aa6e0b0416ca10e065743f8eb3d6f9e4b542a08e8a86de8cf2f. 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/QZU7C2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ac66301618598fe311a7b53b7051e9ea6a8f4ea661868388596a0c3759101b. 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/QZU7C2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc0ac26a68034971de1b17293f5616629281677bab4a2a73aec173f53b8c23d. 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/QZU7C2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4eae651eb5f3e6a335ae0dcf9921d7ff1dc1ed544912b5f0cd0acaa812bbe83. 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/QZU7C2200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86e70f72a1aee408c0387eb3abc86d5415e2a2989def20841d203adecf688e4. 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/QZU7C2200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3455bd188340213a2b701a423e66a9a3d8d2e3df62d4429deae44b346d900f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEBE72100286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbe5c44962cf23e8a064f45caed4bf22711960f96075ea1435c95fd10fb08b0. 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/DEBE72100287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b9c4ff64d00b6226d900782047946a04846cec474a94676f176df021af9afb. 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/GBWUL2047472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6a375c169ddd9b8399476382a75e8bf8b446b8b16edaf02b690174199e4d61. 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/GBWUL2051013.
Subliminal Summer Sessions 2019 (Mixed by Erick Morillo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7564333d40a5c9f76c20e6e4468702288f176c4aed1586c9536af06932484d. 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/NLF711908237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d12daee65dc2d4810fad3f517b599407bcf6ec90646e5220a88dc3a42f9d10. 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/NLF711908247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18261066d941eeeeb954ea9e47710e7da08d2475c9d243c4c1c4eed1fc6ca8e. 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/NLF711907937.
Bang (Mixed) - Harry & Erick Bang In Your Face Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60df69c8610a0caece0c4936d3997e2a4547183c91d647dc0ae7a9427d9a459. 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/NLF711908248.
Bang - Harry & Erick Bang In Your Face Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc9c0aab7884fcdd7baf56890d9550605ce79c08a16c3bd40be35236ca15fea. 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/NLF711907938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1013bf02e615eec4c208ded9187597f66268746e52069eb2ee56666bd4433c27. 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/NLF711908244.