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 0x19604c64614fba6de9115463b79140bbc3caf3a394d81c62d7abce1b13808d24. 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/8c3b6f98-0ce9-4432-b59a-dfd5f4a7b593.json and https://artists.proofprofile.net/proofs/artist/8c3b6f98-0ce9-4432-b59a-dfd5f4a7b593.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 0x92d316f0f76dac67d2ed00692384e89dae7c6e3ffd8110250482f8e3c4fbab8c. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USLZJ2192259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e45289744d1b0520060d545718c1e91dbaf6a3cafe2a9a6281112e124fb4d11. 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/USLZJ2192289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c951eb285c36d9e634c749ffcd69c923dae904d7fde482ee644dfdfbc9d8881. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBRKQ2149374.
Trick of the Mind - Oliver Schories Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ad84a7efdab5e4a94f22fe7a3ee1c2807fc59f8764a0f910385c8cb35979ff. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GBRKQ2149377.
On My Own (Hernan Cattaneo & Marcelo Vasami Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03521a036ec462ca469aa18907927b7db7d28e44d8fa09cbe6b61a53e82f6f6. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/DEXO22205769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6007ae38a81fef7008121756603771cb431c4453b7f3fbcd9298550d8213261c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEXO72224586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0585fd6e5a46914b1e0f86be6ae25d73b64b0dad7e743131e6070b9665f8b4. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/DEXO72224587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd385db6e41d1444935ba57d3e286aa40d4d4d97282cc335e0451b3c3b0236a9c. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:53:17Z), 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/DEXO22205768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678ad4edeb9f06e367ac42f2671afd60148e46fcecef85105f141a4867441e33. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEXO42257347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cd651ff03cb1719fe8dea70dddc6cbb5ad3a82de4448fd7aa04b9dc00c1a1d. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/DEXN82295341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbebc0b9b1206e47389c9aa4028f10d3051dc34eacffe2dc969db062fe5beb97. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEZZ42170243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360e732b1a86e6ccdba8a7972dc5f3c12a3c4eecc8b134a5a70891fc897329ed. 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/DEXO72266277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50184a999528ce689e4d8ee4ccfc6610dea85beca5c60bf7713382303e146461. 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/DEXO72266279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3d5228e1d38d01cc739c340400bc2611cf65d35693821475adcbc796475561. 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/DEXO72266280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd45e44b2281d0b69f2ea8461162daceb2bbcce0d02a2a6a94cbef984ca9d923. 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/DEXO72266284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3d5228e1d38d01cc739c340400bc2611cf65d35693821475adcbc796475561. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEXO72266280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e45289744d1b0520060d545718c1e91dbaf6a3cafe2a9a6281112e124fb4d11. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLZJ2192289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdcbafff1cd4f6d67433f824b0e87dd3245592368cf01a5db1aaf8fe5acf445. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/DEEC33501250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a77ec14e81284445c92fe4adde87e083b7b66554280c14c1c97ae3d042ae26. 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/US83Z2483488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4655200291663687d93d820118315d7505e58e49e74586f9464c542b3551b6. 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/QM6N22482238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21ec50b8483a4b71834b592e3a52bb8f05a31445cd7cea18cf0cca21a4d528f. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GXBNP2427860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916056db2e805ca16fb0fc6c7c493b9cfdb128093411194813f600e7a33f74e7. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/GXBNP2428003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec68286ccc97a713a318b6493ce3fe1a22a8d38740efd6862f5ed2702f33a8f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GXBNP2428301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b96e00d0c923732ca1f197aca41abf0716f2998e65185b1de105f5e158957a5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US83Z2409126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50089918f174c356a94d400067ff09a0a7a904f4c0f67eddeb26c76d89dd6f4f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GXBNP2502709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3146f0ef9e244485d0f2e2044f401c60be6e7b2a2023dc3021652c4458128f02. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:06:31Z), 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/GXBNP2505248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4743227007bf0e3da47b41cf9e54837d1d6f9c21ad80ea3d883ee69dbea9b077. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/GXBNP2505249.
Got It Bad (Hernan Cattaneo & Mercurio Remix)
Got It Bad - Hernan Cattaneo & Mercurio Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625d68750cd27e4e9dc59781938996cc8333345bdd635ed9d2dd5eec5e17d7c0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GXBNP2506185.
Got It Bad (Incl. Hernan Cattaneo & Mercurio Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b54f517262473aa815950b9d380187a8707c79f4e5d6634e62da3547d6a904. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GXBNP2506178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fee00af1f58cd0a84e984bb6419bfa3ee1a98c7bc7f6254a1268f147053d57f. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GXBNP2507761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc579e2b51c6acc218300f1e2da09a799a1360e29cc54603bdc01d86c6dd7c3d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GXBNP2508821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ff3d5b72e459e3932a5f14fd1ae1c171458bd023314f22a81e0cfc717575f1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GXBNP2508830.
Khaf Mat ft Marsellio (Sarkis Mikael Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d971f30d224b40f47196b8669b3dd7afc850341f40d3855e6795755939c6b5. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GXBNP2551035.