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 0x29781aab06fa4dcc69db6a1e59dcd61cc2607962d9d4e8353931eb9af285b1f3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc668b50-60c8-40c3-91a9-5de5b8514ae9.json and https://artists.proofprofile.net/proofs/artist/dc668b50-60c8-40c3-91a9-5de5b8514ae9.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 0x31a2d0ee67b0e985ee7dd2c83f06d7fb121e5eccfe2cbe75d6dc95fdd6b916ae. 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/NL9KQ2390139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833a83b51df56059b00dff96674fe11f5251870047f7e39e2cbeaf1c7f36f997. 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/NL9KQ2390074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146a6eb435951a41ef252db9928c16f4d34f529a765e03ccfa0d5f5f1428adb1. 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/TCAIE2426450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a029c4f24e9021191154dc752ade3b279ee90c5af82e1cf67adb913a1ac55e. 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/NL9KQ2390261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b4f366f5cb497013f81a4de96627159e0dcf6cabe87070acd8785d0dae52b4. 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/NL9KQ2390233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690a9f1509ebef1abbb21631007f6ba25254d42c86b2160911b254ac0fa89405. 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/DEPI82415318.
Please Don't Go, Go (Amero & Hallasen Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc14becf16b03f59837f7f9ea290b169fa1240d88378cd5d4f40d26ebe3b03de. 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/NL9KQ2390348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8900df0b8b670e661bdf06a10043abb5c9d11d5ac30e503b175a2dd1ab90d844. 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/NL9KQ2390212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8399ae894a4a5728a11e871a718abb11453053e47d8d30dbf02d83e58cde25a3. 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/NL9KQ2390211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0891494636979e8d8363ab83c22b49ed9d56d6e75f44d1f7f094306da63ae49e. 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/NL9KQ2390311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0465620ca21a90ef8463e1fe5f30884bc27a435dc2d66c9bba08fe0e251feea1. 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/NL9KQ2390306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae423f6f1aefc424dd6417ea54008490d8510aab4d54d24322ff636d8e86ad5f. 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/NL9KQ2390156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8d4746d2d546e22e0ef8766e128a736e77e5783b427dc17229de2aee59e6ad. 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/NL9KQ2390334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a865a590c5a84b68fa19cbeb141a5f36aefd4d0e533a5cba8c129fd547ec3c. 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/NL9KQ2390257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b02924028d5a9be6284721817e67fce2e3b6d810ca5590069a835ecee2a2142. 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/NL9KQ2390256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3aa7e6c1e084788ef4a3c02c323e9ffb8f97932f6c5d2f9ae9ef20a59ae033. 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/NL9KQ2390228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12ee9c6c98753e16ab911b3d817d1f21d53f9152861cee6b6123c3a73e62909. 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/NL9KQ2390210.
Gonna Make You Sweat (Everybody Dance Now)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7f4fbd007fc441745b8e8cfab8563453bedb6fc3190b9c6b6c22c9a85dd264. 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/NL9KQ2390178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4efb6229ec66868c98f81543b1350dcda68c82f5928420a3d1f605e775f3e73. 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/NL9KQ2390200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1781f47fb2aa02dfe1f975415e3742b9167a231b0371599bbec04307ef1ca2. 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/NLZ8V1801109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710caa57b7f5bb65d9ee3f000efcccac2a448c5c8bb5cfa591c4d729f813fb09. 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/NL9KQ2390168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe507d6faa90181d49989ca9242698d710c2d82a59ab93779712207f8cb45a681. 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/GXBDS2373500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2671e46c94106b85e750ffbab25ca290799237b4493c1504dbc491447245d30. 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/GX8LE2289135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b02924028d5a9be6284721817e67fce2e3b6d810ca5590069a835ecee2a2142. 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/NL9KQ2390256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823d70cb922f8a6228443060700220075792086b9739f1b78af084500f341f3f. 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/FRX872423666.