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 0xbd4717a3dfd13cfd44ada6cde275a0b09e05c9292fe52de51248863d3fdd5b27. 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/364582e1-3d28-4ca5-966b-67c2632797e9.json and https://artists.proofprofile.net/proofs/artist/364582e1-3d28-4ca5-966b-67c2632797e9.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 0x9dd2d1135a3fd9cedc2ad5561f39827601bea19e18c19e11852bb47f0b4cc122. 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/QZNMY2317350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc5b6276a0b1fc3f6f055a5ba68290bef9e8d471edcab69d22878e1dd5d49b4. 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/QZNMY2317352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd94cff8fd9d4eb44953181ba1b4be54b15b4d572bf8cf00bb00f67e8db9055. 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/QZNMY2317355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee2de87da7b448034fd463acb0289401608ba643ec31a71752fc7cd71b14a36. 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/QZNMU2341410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29f9ba9db297ee953e8e14baeb75b9fcd91c0c3a3545064d1f929f046073d12. 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/QZ8RV2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5a75cfef4be1f1370aa2b0e2977886be5567240a73c659c8374f9ddce26cd6. 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/QZ8RV2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf818ba2497569ff95373f28cd14e7f57eb5f8c5fb24f7b9b86d7594eb1cd1f7. 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/QZ8RV2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9860856ed3145074a93ee1c170d8d9ce4aae07067d3de1862267c950cbbc93. 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/QZAKB2159161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf849f82e27f201828b74022227579aa78a5c6ab07040b2083fd7b6918f72d0b. 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/QZAKB2159166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7c6c0a7af2d79158220e290d528c679ac6d69c913dfd33c3de1659cbc91a80. 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/QZAKB2159167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ae2848e2e7f8053872fe6bf7bfe45d8954c6283562402858f91970d60a5bb9. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:55:19Z), 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/QZAKB2159162.
VS EVERYBODY! (INTRO) [feat. GUCCI-ROCK]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5accbcc43ece2683741aaa4930de5fc7ed4ce203d81ebf8fc3573e3c95449270. 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/QZ8RV1900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292ce2408df23f02e9b9c452b782e74dfcc9a5233f7939a90ef14927bbc58027. 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/QZ8RV1900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9d5357b59d6a775e17664c7c894a0cbbd434a4559540ba331a5b88a674f10f. 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/QZ8RV1900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc0004e17e3da165a34fe49a73e6095fcaf88ceb35521c68bd7f81af97de5b0. 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/QZ8RV1900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d4f453f070bcc9864dd13a21665b1f4c08912eb6cefbe2f90080e747cc0584. 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/QZ8RV1900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9c8313112653fceaaf9dd49f2c496d5734b38ad8289b1a5651c9c4a37b8b61. 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/QZ8RV1900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54d2f5652e57804910bbf92b3133aefff10d824abbe8e3cfed7508b0d991c74. 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/QZ8RV1900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1071cfdf8cfd05e366f042de2e340abc661136774acd4eba70dc52907a1b32. 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/QZ8RV1900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa161915883e0df52ad7ea3d2e98caf5b2b7da20f94808a460c4f9511cefec3. 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/QZNMT2384016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7d77ee38dd3d02cf6a43f0c772f6d3ad377ae4e795c05f498f863b29bc6569. 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/QZNB82386721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6dfa8a74a286fca50b559734039012b72c58e29cf7cfbd4de5f01c6fe27245. 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/QZNB82386713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b87166a2e56b0adb87d103d9178a595b3dceb0b8b5b62a2ff1498d543cdc92d. 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/QZHN62387521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb571fa614d9294b7b3541049d6928a6d08c32473d817a554396ef58446f2a43e. 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/QZL382361280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5a75cfef4be1f1370aa2b0e2977886be5567240a73c659c8374f9ddce26cd6. 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/QZ8RV2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7905479d97a017f745c19bd683bf5d5070e3aefb902800e85adeae88c59e9d. 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/QZ8RV2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29f9ba9db297ee953e8e14baeb75b9fcd91c0c3a3545064d1f929f046073d12. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZ8RV2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b8a83b47827d4978d1d724dd8f900a7f8d0e8c8b52e9f2c80bdcaaa5ae9b5b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZ8RV2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bdd5b07db905b2f61642c04758205d8a7ec6ba550ce949336c283c848d74c9. 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/QMPKX1716102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853498084227f01e2acb892929bbd7ac07b9ff77c97d11cd5b5dda99abaa61b5. 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/TCADB1786393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50e59a97a2323fa7b3336ca3ea6f168082e09769c760865f12caa17f04e077e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCADB1786402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4a25bf34bcc07a9915730436c15a6fd3d1d69aa76f45b67296efbeacbdcd9c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TCADB1786406.