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 0x0e807adfafd92175ac627e20f6bf04331a8f8fdaaf226470abf06d22a03decd0. 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/8c0556ae-a11a-4a88-bab6-e22915d1c3f0.json and https://artists.proofprofile.net/proofs/artist/8c0556ae-a11a-4a88-bab6-e22915d1c3f0.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 0x959242177cda2162d4ecc431dc5cec63040315cc480ba39ca4b1c3d0ff8dcedc. 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/INS2X2001204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056ee559120097094b8993d5dc840a298c2002219f853848b431f8656be45d05. 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/INS2X2001205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c415c341a4a10aec823618f6aea28e9be3f097d2f45450fc27519b9588b70bc. 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/INS2X2001206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20dc10c619478bfbe62e957d68a98dd1c8a4529e743a3667f1bf4dbaba1aecf. 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/INS2X2001207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e778d094363101af3578bd678f4eb002144f8289442937e978d3d9930315bb8. 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/INS2X2001217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b5ab7f0fcfb9339557828a57523c997317a5f0aa11d6e6e33db679086ac2e7. 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/USDY42260494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b659afb5435612853926781fd7972ff2f69166264a3c23f646436c2545c09c5. 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/USHM82277568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5040cbc79549ff1558286a3b7bad82f56b14ecfb7a5a0631973eb3bfaaaacb7e. 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/FR2X42489582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01a5c6fd44fce83418e355688f630bf66ea3b57718fa7bda13e8c27cce16cda. 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/INS2X2321002.
Omorshongi (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3648c8525645b0d9ca170624cea3120bd5cff5634a4ab8f41d79f1bab5b14290. 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/INZ031417867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fed6350e8cbc4cd674287c91004b3d66331cbd9d49cbce144536036c88d47ee. 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/INZ031417868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde2c765f804b72eccf8abc27856db94705a49d8153802ada6a0f641b76ad190. 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/INZ031417870.
Lovers Beyond Realms - From "Omorshongi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fee8c2cf8f0ef000c89d86854086bad815f8aefccdb82e0d3d3549f0fb03852. 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/INZ031417871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b166bb45e38fb6325b4a7fd6c954a5169bba7ce984ae732ddcda87abd15d0a. 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/INZ031417872.
Killbill Society (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fdd791433f0742ba2617c82d5d42b5a48702de7b824ab29f5711ea8f19324d. 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/INS2X2503001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707bcd0e9b8c0fa181e5e56af75ff77d917ca478455b11f1e864888f3c16594f. 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/INS2X2503003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a34089767d60c755a0e84665ea26d307ef7d083b1374fa088a03266cec1734. 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/INS2X2503005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015dd40a73a051eb51716c36d03a0bb44e70677b6485e13306572b4d4db7a6ee. 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/INS2X2503006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45f46860d5791fa7ec48cb74f9202e6bf34183426d6ece63d18d70d3a1242d8. 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/INS2X2503007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f28fdcaeb33fc53c5439e7a8b3a7f2240c9813c56e327c9b3cd43591474725a. 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/INS2X2503008.
Shaatjawnmer Porichoy Ft. Abhijeet Bhattacharya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36ec6daf80181a0c15fb41b7c6e0dc5bc72eda79f3f4c3e9805dbc4fd41bce3. 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/INS2X2503009.
Tumi Bawdol Hoye Esho (From "Durgo Rawhoshyo")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb17fa29dfaba19a058e1e6e0f59e5730eb8ac11d4302359e03105274ab587d. 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/INS2X2321004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8aa0bdcbf496a098951a07b36666e4d328a6b38ba88295c3cd6ffa900ba91c. 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/USCGH2335575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73978015dd174fe78a67356e746e0e11ee7bfa074fee483b5d965f64ecbec340. 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/USHM22245544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd064956591e7a3a8a673b8e7d17e12a7eb09572fb9b8b6d3166a5eedeafbf619. 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/USHM82248827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e8efc8e1b448b66c5ec7211beb8bffca660a8495f2b9b37bb1f885affa8489. 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/USHM82254323.
Darjeeling (A Celebration of Solitude) [Original Motion Picture Soundtrack]