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 0x3ba1b79f6b8cbb1abcc339e2885a58b0a56a36a1912127d5487b40db92234dc5. 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/6297cfcb-6018-46fc-9e05-9e5b1750cbb1.json and https://artists.proofprofile.net/proofs/artist/6297cfcb-6018-46fc-9e05-9e5b1750cbb1.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 0xd6d031e312304c68b031f32db903039bbfbffb1bb91f94ba221cc09c31d56819. 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/QZNJV2389714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97dac5eca0135432cbf3485c928a89bf742ddf1eadea0e40f44339045dc1629. 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/CLAA22300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6a3856e2c5025c5632c01d196a680619b1d7e42d6a9bf9de9338b89bb55cdd. 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/QZMZ92370801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a63ec5e3a09572dd5512f12fb94c5d8b2a84807a6cb61e39968cd86ea0c923. 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/QZTPX2350004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2326ab01443dfc157a684d12ecf8cbbf054d7fb0fb3cd64fd9e3f3437b442e8c. 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/QZNJW2431417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ecc21ade60caf52e1d888d402e128bb82a34eac86080cfccdf51d3540e0331. 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/US7VG2547861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b685ef092a164d50b5a9b236898096ecd0d38a556bbbe09ce49496f3b8427a. 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/QM6N22451858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f5936207ab5ce052326c2a0b2e72c187fd3e1637ffbd54f66d5bfe78c67901. 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/QZW9K2427285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8979b29373916c151bbfada3cccf5999ce5e4e2d88f5b0ea9e036476930932. 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/US7VG2465652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d9e28106c656b0e0dbfb3b3ca51ed4d557c7019f80a98eeb2fae1d67c93c53. 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/QZNJZ2346140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33eb7dd36884e442feb174cf34ec8e589c76c6257d8b9b1323b90aa1e8f5baa5. 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/QZGLS2512142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ea19464de55f6e5e7ca03c114daaf40922935f0924da42afaf8c5b98c48767. 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/QZGLM2542223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb62322bb296400935c7a3360c199c3b2b3527c28d235b528862f835da85283c. 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/QZGLM2568035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebc2ff4566c63fed4a8e274e45c5587d1a4b7f18781022b3d13e2db96aa7b76. 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/QZW9M2406132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6e467fdb41edd3c4a8949bc56aae3c8e51f3c37e66d5fa3fa5911d8722afbc. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZW9K2465866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc443dcbc23e362e9d608aff38e4f2249b1f547f787beb236b7c8bc450dbbe3b0. 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/QZNJV2320717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b9ff4833f3b9a5bc8298874d760f196b4e0ecad01e0cf88f9793050eeba54b. 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/QZNJX2270090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b7aa35a4466eb5fe22bcab409722742de67bb5d6f333c6f768e533f0882c98. 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/USHM92046021.
Tu Diablo Remix (feat. El Jordan 23, Nickoog Clk & Tunechikidd)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67168a72b1105c2b7435f3274d4008d607362b9d7f36113a52549cd5cb78f4ed. 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/CLAA22300412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67168a72b1105c2b7435f3274d4008d607362b9d7f36113a52549cd5cb78f4ed. 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/CLAA22300412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cbbd2b571e062f2e0b3792d581c6121556ddc9f53abf5839e97119ec9e65b2. 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/QM4TW2398256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd03ffb65450f41ea7fb01f8f9881ea541964ff264982731f94063aa0da1ee7. 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/QZNJX2452319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d822822eda3d967fa64a99315ef4fa0f787b3140bfe616c06578983e83610f2. 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/QZNJX2452320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f5e0bbc6345c8b2ec5d4ae32b73170ee5cf902742a54c2e36762f5c4942f73. 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/QZNJX2452321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68c25a1b09740b2dd3f928c5163d1eeef174bfb9ea826bbeaf5bcc5dc1a87b1. 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/QZNJX2452323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97dac5eca0135432cbf3485c928a89bf742ddf1eadea0e40f44339045dc1629. 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/CLAA22300026.