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 0xc121fdd2daa2f2f1f30cc0e7e4cb77be1d2dc53a56c0faafaa8e087e162b6867. 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/ca9c23af-bc79-4a35-a884-3ab290ce656e.json and https://artists.proofprofile.net/proofs/artist/ca9c23af-bc79-4a35-a884-3ab290ce656e.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 0x94876425deedf539c63de762cdcb1d9ab37136b82d0879cd043bb4d29cfa0b48. 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/ATX790434010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187b10d1c67aac48339535e747be760749e91d181d9f57de1828c3add3d2720a. 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/ATX790434011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2056696e71a81fc896c0da72e4fc301d1e9b26b82253b3d13bf734450ec309f3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US83Z1795632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d632f0de1323d0f119c2e65b966fff54d549f26d8f64a196790bc37636a55a. 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/US83Z1795637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2faa5688bc3ebc20bebbfd70b73bf47f67057d2e3f5bc702b2d707daef200731. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US83Z1795638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1fb94b207fadb3046d4477910613644e9d7c01b426d9d39e6a32f4e7bb84b3. 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/US83Z1795639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905a15f1c02e62e1d9401c288bcefcee2037a11acec1c914a729ebfe8b515685. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:02:26Z), 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/US83Z1795630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb6af465809577ac222eac5b2805fbab42c54e98624f499862fcf171f5fda3a. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:08:49Z), 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/US83Z1795631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63e99ca8690b56df9ec758e1edc4dff2ead477014d6dbdf32ecbb4d572320e6. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:05:48Z), 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/US83Z1795633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3432bb3fee769d6c35b73adbf94ad8b2aa8287bb4a7d0c090e52404f7a08c8. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/US83Z1795634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8683c3290ce4849524f4e7ed0fd310052d3fb33530093e5c1d9605245195afd1. 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/ATX791900002.
In the Waiting Line - Dorfmeister vs. Mdla Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08820e29fd6058858afa7898e03d032008aa8195769f7681c7fc99c1aa43aff. 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/ATX791900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8683c3290ce4849524f4e7ed0fd310052d3fb33530093e5c1d9605245195afd1. 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/ATX791900002.
Valldemossa - Edson Arantes Do Nascimento Pelé Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe51b81e418037cafaa3d6c6f8d2fde980a462a203904aa7b06a49cc53f57dd. 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/ATX791900003.
Spanish Grease - Dorfmeister vs. Mdla Muga Reserva Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaec16cd60e61866aa4878b8d748a97e7986c5634deed57b5f1538624cf6ae8f. 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/ATX791900004.
Relaxin' at Club F****N - Dorfmeister vs. Mdla Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9151162da572d71cde08c5962a5076f72a4a5088f4ce3a9589fbe4d4030ed05. 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/ATX791900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b282a119addbc1e28c8f316cf40fdfbe0b9b1e719c66cf8672a4c42a0e9a7d. 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/ATX791900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7b750c8959f26f871c1003064fad61ea7b335cb9aadf32f79a3e18c9f31e95. 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/ATX791900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2de2b4e48fd274937e0511dd874c8a4e475559e7250433e1c92fab8bd46097. 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/ATX791900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb56aecb5d0cf4a6d18365d110e2c22ac1c51ebad4f3102d8d91a00cc47b8969. 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/ATX791900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcc4efd5deeff50d3b129853dc7bb81e33ac64218748a34b72fa6467d7cc850. 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/ATX791900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cbb4c7a99e420acf35e42dbf847c2476dd5a6183dcd6df15f2c90db17ad90b. 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/ATFLO2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4ca753c71f0f58b5f8cd4e7c0a4b88cf50a83963354de8382a3173eb728d0b. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:06:08Z), 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/ATFLO2200002.
Trans Fatty Acid - Kruder & Dorfmeister Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd1b64a413aa7b7ac58de2ba55064083110ea1c43d6efcb43429df53d19fc0b. 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/GBF089800359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd1b64a413aa7b7ac58de2ba55064083110ea1c43d6efcb43429df53d19fc0b. 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/GBF089800359.
O Tempo Vai - Richard Dorfmeister vs. Madrid De Los Austrias Boogie Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b1e13819ff235ee93067bcdafe9c4b8c7d80e65d00e7ad489d98d848bf26a8. 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/CAB381320024.
Sixteen F**King Years of G-Stone Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94876425deedf539c63de762cdcb1d9ab37136b82d0879cd043bb4d29cfa0b48. 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/ATX790434010.
Relaxin At Club F****n - Dorfmeister vs. Madrid De Los Austrias Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b1e5404a0be735623322c277149b8d46e56444f70c405a11745bbe780d4fed. 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/SELEI0900205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaa788f714bfbea1e0fc8525dec92899874ccb2870d69355849cecb146ac033. 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/DEG939600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf476eadd6add69e138d6003f4d2d06a312564945ffb59fb2abaeefe89aa793fb. 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/DEG939600441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d78eed46f442e1bc6785940ba3439510cef8ed5e346920a817c4f21183d39d. 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/GBCFB9501100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bde6b52bb4186b4915904d9ab171ff3006a1e585d382464fff33dc1c595c2a. 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/GBCFB9701101.
Bug Powder Dust - Kruder & Dorfmeister Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66afd2f3fa643d30d37fd7ab9a61496c9862829b51dd0094caa73dd90ac3ae7c. 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/GBAAN0201305.
Nothing Really Matters - Kruder & Dorfmeister Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff10ae6243ef9cae817c520c86c52c620d642d28eb4ad0aba1ef4343dde1f22e. 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/USWB19900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd1b64a413aa7b7ac58de2ba55064083110ea1c43d6efcb43429df53d19fc0b. 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/GBF089800359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ce96ffeba3628e7dc44c009ffadf6736cfd2b6880943c00144b297072a9fb4. 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/DEG931290569.