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 0xf09b22f05f1913f25e64d99d0e2e1568f155cb5a7a1faf1fa6aa1abba22c3954. 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/62198e76-a5bd-4a1e-8de6-19bfd57da0ea.json and https://artists.proofprofile.net/proofs/artist/62198e76-a5bd-4a1e-8de6-19bfd57da0ea.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 0x72053e22e07c092acdc2d8f7462dfb00811f482ff3fe4f0e3c593aa408879e9e. 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/DK4L11800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5880ccc155c7525cbad64c754aaf7d153047acc53fb2e89deb11648d8bca32. 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/DK4L11700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3e12293115ec22d4906f9b341d183fe77516299079fb7583b03dcd93fc9251. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DK4L11800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa911198273821cc1e4e1a97b78c526cefb6171560df6b45601df3067f621c2b5. 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/DK4L11800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb5931382133fa063817ed5a82b6890751f477632d6288f4d9802ac90e4b2e8. 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/DK4L11800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3cdd6abd1f66b46c2a530f0f8f953951d4de8e9cd4d1f0737643fc4b0eaa958. 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/DK4L11800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a6965f93adb1b0768a7db479161ff90b9884c99a3e829b4ead639047fc23d9. 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/DK4L11800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91bb7d480137f2d6b8b4ddbf656948035c550873665b8030ee1660e91ec3b4b. 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/DK4L11700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58157f0c6c679c7261f6330481082924fea69dc8f7e8c6a978b142d38893f438. 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/DK4L11800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109fa4a0d5f33209bd4b39b394d87408f022114f6f992f669f88d3ed3c04495f. 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/DKQP51100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b19fe2150364e4eb009b5fc5a6a515635543bd2a21aaeead26f8e7bc6458e8d. 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/DKQP51100204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291e9eeeea9a98652067e41ce8114ec144df939b9cfb121449e0173c572e52a3. 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/DKQP51100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cadd1bc9a291d77269def1cf9458bc8e8f02455b969b03fbfc8373a09fb4344. 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/DKQP51100206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42500b7f91279435545dee0bf5c8be1fcadb541ccc670537a32b6ea2017f57c9. 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/DKQP51100207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e98e8e0ce2f0052219c228fc2fcda625837d862453f0aa3b65b7c4c7d68471. 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/DKQP51100208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5b2716d37ed2d6fd40076c946020b68fabf5c619b554528e62c09a18c3cec8. 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/DKQP51100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0639e6d20f97a27af686be480751df7ddf99fc316963e003fe7ee1f1bc75a9a1. 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/DKUM70801240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c5b608f62903c70f5f66705824d2b1c686fc5d76e737672cc92f16a33f59e7. 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/DKUM70801242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6631e465bc17e1297f2455204ce6da4490f0fb8540c94b246bef1d4d08e7ccd. 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/DKUM70801238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a1fb9535a99b91dfc8af347a4619ec8c9d15ef31db3886cbf9886ee56a9f32. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DKUM70801245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28caea8d4ef2fe87c3b7f09934eacc783387767abd347b053eb61399366155da. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/DKUM70801244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5db392b39b281e7c4d668a2858cb8d4c385914ccf49a0517b992bcd1297529. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:26:04Z), 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/DKUM70801395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd55e8e8c17929ccb3ed1390234c779d8efd747c1132bd18d8caf61a884e8970. 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/DKUM70601178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3a8641e43fdffa57a6f2e467eb013ea701e1fd2723347a10ac7baa07ca0f99. 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/DKUM70601361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc074331cf48a08e88189a11fdc7c6cf63fbf275ceb614a48bb6608eb949cd3a3. 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/DKUM70601362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f67224937e1aeb7d9ea779aabe20121ea09a8ec90de44d80033e114cf1a361. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:42:50Z), 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/DKUM70601363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6a722f56b2e48313a4366cd09262e6ba81fc374588e23bb73936e792ecca24. 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/DKUM70601364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682420148f66384add16369dca4ce4610cce2aed0cee1da5ee8e18341c281d91. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:15:59Z), 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/DKUM70601366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01f7b6550df8ce3da1a82581f06f0280a95a247087ab04f1ff9a9b732c56b30. 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/DKUM70601367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a0492b92f264f9c9b2f7d2568e5de7d58b42ca1d50b1b97ea474855e34a75e. 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/DKUM70601369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0373cf38a590905287a9227d8d18912a1e811b10d7dfea27c83c4087705dab6e. 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/DKUM70601370.
If You Go Breaking My Heart - Remastered version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4cc9a5b7eb9d07efe9c3d38fc08151592a165d275174cc123f5f7f7b648973. 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/DKUM70500340.
Say A Little Prayer - Remastered version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9946e9e1c53a222f6d8e85d8b39de9ad56baef084ffeb0911d67788cb0e720. 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/DKUM70500341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8fa5af8ac5caa0988b2dcd806461b99204a93f5069ce21d69d3f63fbe90f43. 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/DKUM70500344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd567e4859bcbead56eac2222cbcb9a292d67482db50182c86d61305905ef213. 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/DKBKA0500136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce9e17bcc34d91fa5bcfd246d90a94ba8c9903eadc56c3bff6aa65630291a4d. 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/DKUM70500347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca9f487859bd06c9106f99d5ffe8ed789cbdf6a3e803557a18ac3852c5fe770. 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/DKUM70500345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2a48c5f83319acacc99252df17839d4e4cbc0ad461935ea3ce76de58217d8d. 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/DKBKA0500223.