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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5946ac9c789ebd30a13ceca2c04695821da57bd61b462c811c8f2e04513ade6. 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/5dc59d43-6a05-42d7-b5c8-3a44cbdcd295.json and https://artists.proofprofile.net/proofs/artist/5dc59d43-6a05-42d7-b5c8-3a44cbdcd295.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f1c7126079a32e61b5214b84aa23d65216cfe451a07b2648c448e85264ffb6. 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/BXBK62400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c1ab028fa81b1eafa0ce9dfc21e621e119ce8cf2eadb5198eef7d3a1386e7e. 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/USA2P2436393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6927e048d3bad28d33121d6a9a353adc5aa354cea23c6bf39d7dda7ccb5bb50e. 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/USA2P2436392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce765537496b335cd75ca9835bda6c19aca6742e610a7a20134d0eda3e515fe. 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/USA2P2436394.
God Don't Leave Me Alone (Adam Sellouk Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611ef6c09db68f86a4be9dcd6fd75d1fe48dc03ce69c5c393a83ea1bfa283b7f. 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/FRX762483420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca7b908aec69abca781c84f42f881f27a2c632dfc0082eae56edc260b18cf79. 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/FRX452425222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3cef5b8e6c678c37d7723fdd1fa684c1cd790aed1a38c4761a95071bd9d6d1. 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/BE5KW2400476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00562c3e08846b2591ccfd5e6c26eab679723d3dce3eb4859816f715ecbabeb. 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/BE5KW2400479.
Sans Vetements (Adam Sellouk & ORISS Remix)
Sans Vetements - Adam Sellouk & ORISS Remix - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3844a928464354750173d6975a7fa68e37fa726c6d57d4b964a5dfe6ba66b0b7. 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/GBKQU2403832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a63b8da6b4733f59d24a7ad1d637b40a94d3d1325f4bdaa7a16a70f495f4ef. 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/ITFGO2300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89403c9baf4fcb8e87c5a1235af2266310f52de5a4be38531be0d0f9f347367. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/ITFGO2300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33930f08e764cf8b2a78052d977b90d995493b9399db83ac68f0047cefca6f7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITFGO2300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7c0f3783e0cbac65b0bad05ca9eb6a8778fae6ac765d23f795358e7e7501ed. 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/GBKQU2392690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb5d05775c56120dbb4a326b5a7f96d3d9cf7ed9ec9f7e73eddac7e079f8320. 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/GBKQU2397312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957e50789f9f116358d1c2ee9f4321418a21429777feea7bdb84eb117c038c00. 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/IL4612300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c142a79fb7be679738d1e73506812a667311b0b81f8e5f9051cde45221c711b. 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/CH3132317811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a52c822018eb7cfa752c48e0ed2a53bf5bfee58d717cfa2486ee51daeee6d98. 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/CH3132317812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe041096c554e8331707a837fc703d31e2293dda4226a0fe573e41a1e8d014419. 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/DGA062352024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f1d054b55aee172943a1e8fc2e5f893b104bbc3e3955a0d5997d42365f7a6c. 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/ES35G1200875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18db7d6e5689f86f9799bbe2789e313efded794dc1b7d0fa95dcc54fa6d5401. 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/ES35G1200876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0b849395b947abb34b038fc61678f5a1e80d69c99287c956430b6ed0404bd4. 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/US39N2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32878c04cfda4a5a3914c31da5402e564402bc3f345e7d5b82650e54b1bbc89. 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/CH3132216997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b19ba9565b05d977f1db0e5d59e937c22c4cd4afd45345fcb77f32b8fabe5f4. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CH3132216999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6290c816a84b3155345553b4cf8c0053ccde5fa95efb5fe673915e423aa71c5. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/CH3132216998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88dacd4c040264578e48f6f93b6dac1675d2fc40025bfb45ddf642f4c55bda77. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/CH3132217000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cf285db41250b0248a8ef49256cc3ec6bd1984c00a01186c9d0229ea3f1b28. 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/US83Z2226249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bc6beff202e44bd873dd500a551468263bb69bb1afa2e2cc2978d2bff165ac. 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/US83Z2226250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f08e1742e200b3f16c30df3aa2f79c7d27ed35e8e78d9e44202dd3ac9e6053. 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/US83Z2211927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffab2c15aaba3e11c2231f766d308d41a1d2213fb38e6ee97db25493d66d299. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/US83Z2211926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12296f3efff95b4349759e5640fe9766bf54d072c2114a3dddf84cbe49428839. 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/US83Z2136412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eadd44146a655c54ff4173ef609e016523831d29a33cccf15ea54e4685012b3. 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/US83Z2136414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39d1d316e5b08a4a23c4063dc3793434eb5b3f862cf00fa5b292d9456f68acf. 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/QZNWZ2079549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0459ff4fd2e21f375df604a6c2c47648fe445c4185fc620b3a101581f37a7658. 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/CH3132318304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a63b8da6b4733f59d24a7ad1d637b40a94d3d1325f4bdaa7a16a70f495f4ef. 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/ITFGO2300112.