1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xcea1fb5c32b699c947cb6138416bb48fa54e27b693de2a5ace54d4f795114da8. 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/1a4c1b8b-b7fa-425e-a4de-2e42c34787f1.json and https://artists.proofprofile.net/proofs/artist/1a4c1b8b-b7fa-425e-a4de-2e42c34787f1.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 → block OTSBitcoinBlock must exist at that height 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 0x3b1efa7aad4da3c91fe489ee3d8009ffe631a3c6763138cb9af3fee94e6e9df4. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/AEA0Q1995390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7da238898ab5300a1844ff589bd707de44090326abffa10844fe90747e6afd. Chain 2 (Bitcoin): anchored in block 957665 (2026-07-12T06:13:49Z), 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/AEA0Q1989420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e607a57b320dc7fd218f2ce6c503062018ebf89180b8d8c2e97ebc6fe40d0a. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/AEA0Q1989451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217e6ba63115f904f9c8700ad99108c4e9d69b068f9ca559f6bb919d891ce3ec. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/AEA0Q1991847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5252bdd796f2074e89545cb2aa827890fba95431aaf591e71a98f35ef96a60a1. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/AEA0Q1994903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0872f481b5e52126207881748d81a32eabb2f9b7f11654b81c4106e2d18f4c. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/AEA0Q1994738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b6c0930c94eaed5bfb9d0640f871ad8de1e5e5ba6d4731405f12fd09d71e2e. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/AEA0Q1994768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46be6c62657547de5bbf33f5d6fc6b4b1d567c7610e3a9062aeb134d915865e1. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/RUA1H1906081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcf33367df99636ee1bc1aef694bbfba5f0a52af7facb5620ce07343d75e228. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/RUA1H1906139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71acc56bbdbb1f4529f2281f0a165923a95f0f1ed3f2d09c978b14b4c866fcdd. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/RUA1H1917365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c7ea191bd2781f0f69b11decabd495e1af52b15ef3b4481d5080f04dfc191d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/RUA1H2151988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd334d49a87390be179cdf890c8f52a9b6241035902464b24ee85a1f41ce008. Chain 2 (Bitcoin): anchored in block 957661 (2026-07-12T05:37:10Z), 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/QZK6J2223506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2665a1ceff798e220e26f8c709b819eeb913f9e64080a11a8a71ae5cbd5b3343. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/QZK6J2223507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eed53ab64763b4c2cca9c82ff9aa1cbc316ab7356bb86e46c76255ab2f2d4ae. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZNWW2274565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712b69a241829476f99c2c9a7c2043d5dc255381a090b00dd3e54f3a5873b054. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZWFE2322476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e7d20be36a7865249d0d77e1793a86b24dbf0b33d737ff189cead09acacad6. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/QZWFE2322479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36a8f0f488a8fb08de63d1594a75f236e4e1f5653c7e1678d0526d7f1de5624. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZWFE2322480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6f423999350e107226605520a3996b33d16b3d06e0541eb98e26170177b005. Chain 2 (Bitcoin): anchored in block 957661 (2026-07-12T05:37:10Z), 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/TCAJC2413430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501ba82f21a531416b55b13e4bf5039486360e04f54601b350554af84d960b1f. 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/TCAJC2413465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa462b4867377091721ebfcbebb9ee12af6fa83165b437e58de6209689adc86. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/TCAJC2467592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11aeb9db335c36a2341fa883748d1945bd0c0c1569eb46edc9cef39f63ab644c. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/TCAJG2521786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7957606a58b5a4f46c3b95c28cda71f8e3cf88a1a2430c29c6df4824b345e872. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCAJG2521737.