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 0x6d2d8feae976ee503b412bbcc28cbbf4b12f7892a06b7a5910199050c3b2b15b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14bf8437-4894-4b1c-9ecc-139610e1d1fb.json and https://artists.proofprofile.net/proofs/artist/14bf8437-4894-4b1c-9ecc-139610e1d1fb.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 0x1ee4d3297d8780616d097ba966ff09665cb0ef0192d3d259c566d5f4d719ef5a. 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/INS182301384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe230e74c9673226c40645dc4fab6a60ff460b71c4b8d77d3e0d715220e4368b. 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/INH102406247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d918916c547e9e1b5225ab7a7cfca256cfc01f44b9c9fa245f4be545f134c00. 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/INH102405677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aeea4fd8b104989fb8185e390322b5793d168020f9c9204f88a4ae01637380b. 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/USA2P2345389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0a70a2ced2b672dcd6d4c7c62dccd12a26ef0c72de74b2fabfcfe163a2ea58. 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/USA2P2328798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001b3c3767d246a45104ada15ebff51f3053918f1ec347bfa41c56a8af3fbd9f. 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/USA2P2250279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6799f22eca46178bca20bc6ca82c8cdbce26a60768efe28a739fad1b0c828f9. 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/USA2P2244862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2933f1eba37c00125df953da23cfe416a8d47715c7b3d510d9624ce9525309. 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/FR59R2250546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500aba93f3a5c5febfb64a11504837321e9dcf140d8881e9a135c0e9c3bfe62a. 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/FR2X42234956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dd340934741e0b0383905aed0a25dd2a4efd8a667c8e9a19bf4248fde6e29b. 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/FRX282168309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f76f7a842d861c71c435b38d6358364835356adc4c9e17abc6330e8f9e2c01. 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/FRX282015435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9654636a8e94e7543d8867a44f7fca79b22cbe749a7c5d9ea9edd2dc6be0b17. 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/INS182300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6306338a66c55c73db5883396746b5dbc4322497005820b97c2c17eccc9b6326. 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/INS182300251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1822675a3eec806f9b6c67b20a095ac74fe11ef5a4ffb5350729e5fed45b6c51. 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/INS182403815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75e7bd53cc6fbd36569b21b6e245accb86fdf544a64b523174efcd3eccc9e23. 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/AUBEC2476561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1f116e2948912f8b8a50b22022560946db6bbbcb4e7a2d6f08ca97ea11ade1. 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/USA2P2456492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb69b692c271d77b8b088f0f9ac7c5c933c269905ea4a220e9b168da8c19a58. 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/QMFME2190377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff8dc1ff26e3eb64eb0a975877aedef2c4a44e598e34df26c9b3ae6ef777cd6. 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/QMBZ92189791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ebe9991b23240b264dff347bf01946a94bae934918c4c62e551ec6f9549e59. 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/TRU201900177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea172ed16a74162abed7ed2fb67bad2ea77442887b6006e0f3211780bc68e228. 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/TRU201900268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac066dfd2190c6572993bfe9f1a645f2afb46e55c0e18f5c083acddef2edd51c. 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/USA2P2253760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7b50e1315bd3746ecf9d6589e2a8ceccc74638b3f122f3d7840efbf54d0c88. 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/FRX201929498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92691c5595e471f37c5238743051d58654b7c6f6f9761efc72df7ed6394cbee. 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/USA2P2473053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70848d373fee8a018cf3a10a9d9926a25d126266b67e70e794b1e2028eeaaa50. 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/FRX282269966.
Ruslaan (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe230e74c9673226c40645dc4fab6a60ff460b71c4b8d77d3e0d715220e4368b. 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/INH102406247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78897ae509e45abcf530da89a3d6a007d1bdff2751993c70d1485da1fd2a4f1. 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/INH102406542.