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 0x392f4064a2cb221c533869f6ea83c20b7c3cc0868bc7db7cf808fd07f9580529. 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/78a915ef-68f3-4b7b-b11e-3a4b00ab4c22.json and https://artists.proofprofile.net/proofs/artist/78a915ef-68f3-4b7b-b11e-3a4b00ab4c22.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 0x385c792e68da8f77edf96ca66858e9d9ef65b5c8e7df80d43a5744a16aa38a9c. 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/QZQAY2477239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6774334e9944612659a40807c784fafcf07b60a92914c51dd2e361f2f7501a23. 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/QZTLA2405238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0ad26182f8270a15f7045041bef25e23ae2869d290db7962bb01408e76c9ee. 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/QZNMY2360499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99b5609d62b2ffdf52d0601d9cfa5ef300a29aede11507ca5bbbcca09024b12. 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/QZNMW2313897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6f0e38b6f5e306072e824f7543d3dc250f5d6671a88904d314994592e8390a. 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/QZNMT2322407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5af1f055d9c272cf9d594e98bb1aa37bb1d4a2147efcd6cd668ca8314d0cbb0. 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/QZLL92393006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3166a6fe72f1b173f665ffad17f43a32e3569433f40cd24f356368fbb204dc. 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/QZL382330568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5141c73c8349117e4713946feeecf4d9a397929b0457451019d876dcfb0bf132. 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/QZJG52319835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0600b1c304ee9e929d6072c91bd31f4092109c8f7efa26f200ea645aa9715163. 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/QZNMY2220080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa593c08fe8644b32b6ae9803f3f57301993193f0fb44e0d729264c3041ef1709. 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/QZNMW2208043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491e314b7cbc72097bf741350b43d50dc729cddfde6d4bf7a343b1f873cd3808. 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/QZMWW2295487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e3660de5a0d50b88ebd747da97f39041e7ef123235141a8578332841cb46a0. 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/QZL382280885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638aea90a4c761a8579b5f4e73dd9cf03dd58cea66ec202b0e28eea3761967a4. 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/QZMWW2295360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9466df6b8cfe63f8ae6db581a0fdb40741803e801ad4bd0986a466ea57a94d. 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/QZMWW2295488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f5b94973ad1f9dbd456a821c494bb739136ecdb2c56f05a0ec4765f059dc3d. 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/QZMEV2111079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0e8e055df028dc0c3fdb73400424918892b5936e889555e6500624c765e2d3. 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/QZJG52240163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638aea90a4c761a8579b5f4e73dd9cf03dd58cea66ec202b0e28eea3761967a4. 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/QZMWW2295360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e3660de5a0d50b88ebd747da97f39041e7ef123235141a8578332841cb46a0. 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/QZL382280885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0e8e055df028dc0c3fdb73400424918892b5936e889555e6500624c765e2d3. 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/QZJG52240163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f5b94973ad1f9dbd456a821c494bb739136ecdb2c56f05a0ec4765f059dc3d. 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/QZMEV2111079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c6129a2041dbb4746ab746734508a8f214ec4a31110e80c33012867528d229. 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/QZNMZ2105510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0b8c69011a6c79bfdcbce242a56055d953a6a29bc78d3193dbfc304e8c2167. 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/QZNMY2100455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8f06e51a00590492a59383745c3b893dfe57487c2d50947c4c8e709d7518bc. 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/USA2P2118086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3105e78901c1197d4987dc0e14d978f31f9c12f1bdf0d69d3d0af8c1ca0e47c. 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/USA2P2118088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb6d7b9c9cf43ba7563f53b487e4c88c79713b40edb60c9e16752df79ecd381. 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/USA2P2115834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa37d3add339c3f4ba32aca22f6d2ee7ff2f605525f4f87a388620a24ec643d9. 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/USA2P2112160.
Why You Gotta Be Like That (Vyceroy Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a451861116674e063e420162381de4946f632355be1b56c06ce6955328b6ea. 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/USA2P2102210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa3932fb9d89e3e5c59fca54565d806c9eb578fa60daadc7079fcbe75934230. 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/USA2P2040656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb127bba45f0252a268e591f320aae2cdd9da3b6a97e8b7955ad4fb615bd848. 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/USA2P2034881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a46edc54e132c704d3a339640d006961a59c67aea249356dbef1a78b504341. 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/USA2P2024985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad941872135e96991a5a0e9804d371342634a4aae8c1d1e0062d2e0d9600680. 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/USA2P2017009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3f10b0b4872bfb72ea285d3d13e0f457c64ba1f33a88c4247daf2613403cb0. 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/USA2P2009281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a5e3b8314cc022855daadc6e8f87a30abb4bb0282f92914cc44d26107d163b. 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/USA2P2002138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe7e181d9eb0f19015cd33e49c1d44fae2496cac201a4677f54e0ee9487ac50. 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/USANG1907700.