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 0xaa9598979dbb4376a7e89b29f263412f502e1ec9722a8eb30e2082905ebefe2a. 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/9cd2f420-0f54-4053-bbf9-7317c67ef26e.json and https://artists.proofprofile.net/proofs/artist/9cd2f420-0f54-4053-bbf9-7317c67ef26e.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 0xff945c2698daf496bea30c0d9dc0e4c5c42dfde6ddfda1a4fc08ffd745960754. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/KRB471401892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6342a6be9d6f67abe1518a079fc228b990c6927e8c09f91c820fe98216eee28. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/KRB471401881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e9c72ae41f484c014dc1ec00bbef59f2e596ec07e0c8a936d303dfe46e181c. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/KRB471401883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc36f8aead2e856fc5977022518d8e9e687e99e69bcefef033a1e8448faf1f77. 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/KRA340909639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceac42cb199fecc4ab9f9fcb7204dc79431774936f6317ed74836d5041545cd1. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/KRA340909640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8a2bfad96ccfdfaf300a97603096622377b6c597805c3e762da38666394a09. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/KRA340909650.
The Legend - Special Album The New / The Classic / The Festive
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17c07e8cec0eb5f6d62d11043515c3a3b013cdf1d24638820b6a5e1f672df10. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:06:23Z), 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/KRA341683884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46990573ae6f8911a31dbbfc933a8012f19b4bb1d70b2c294dc2ce537dc15365. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/KRA341504361.
Cinderella Man (Original Television Soundtrack) - 내 사람인 것 같아서
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398a0bed6a2c3686fb83f00b709910ed192bfefa415914aa6117bec6590a4e20. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRA341560994.
I Can Hear Your Voice Pt. 4 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf93fa30d5189690aec81f501cd74f4273b5ee3cdd7e7fdff072ee79def2b9b. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:28:16Z), 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/KRA491301271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b816b0b2c9e321fbe7999c5808a02a5e7ae863d8b18a6f2588a8ed08339df16. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:10:54Z), 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/KRC561500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafedb799cd6abea938117dd40214591b93a9610cc507786d83ab2e50311ecdbc. 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/KRC561500013.
Mr. Sunshine, Pt. 12 (Original Television Soundtrack)
Like a Beautiful Flame [From "Mr. Sunshine (Original Television Soundtrack), Pt. 12"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409a38cab1bad32befed7bf47b7d6554117eb211effa547ae12057c03c6beb96. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/KRC562000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce33cf57683f3b60a843b587dcdf35de7d2c692715c77bdcd2aab117f7a2c977. 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/KRC562000008.
Welcome to Samdal-ri (Original Television Soundtrack), Pt.4
Shin Seung Hun The Best Of Remastered 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c554650ac02ff230c6b2214c3f56751176169290803d6ffe5a6e193d16fef7. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:54:57Z), 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/KRMIM2550260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830d6aa09ee94ba927055abaee934e4ef95c1691923e3305cb6e2d43325ed006. 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/KRMIM2553488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8868c9b84896b285431c6350346860ce5b71a2c1ece9393c442c356a83422475. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/KRMIM2550259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106ef804376cbe0400f858fb0fb028e8a3d2d6b0b6848422997eb0c7a97c1fed. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KRMIM2553490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4ce2fcb746d547c5eadb23c28bc7d93f12360b9e2db3f750c61b0fe9c4b71d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRMIM2553491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95e52ec5445e07e1407d45fb08e4f2d5a39899dceeb020c6868fe9689c9e2f2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRMIM2553492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb183341f938f7b3e23e5a588880cca6c8127270e3fb8fa218fa80d02b66463. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/KRMIM2553493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31432435b2b838ddf25adcb38ec672ea1e3bc35b8cc22241de26e877a3b5ccb0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KRMIM2553494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd26be017943ec5405895cd8b2f4934bec92f76ba5b26b2cec2988174f86a347. 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/KRMIM2553495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4f1f82f057e487084e874e21f426e7b38c7f1489f7685d7cbc2e4eb5479e51. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:41Z), 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/KRMIM2553496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3beed18304ca2fd87ab91478e79bf2c07a55b1ae2392b6c7fdee15b35a3798d. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:23:15Z), 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/KRMIM2553497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75902d8a174ec9d7339b2cdbca40f771f9a162be43c71e626d6c9a6f079e6ff. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KRA491800571.