1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x00b91ac4f3394e0fc4470e99f1f9cd98c32a4d3457eb7e3c8c6118f75ea2f4a5. 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/fc8a90e2-c12e-4147-89b6-605bbb4ccb70.json and https://artists.proofprofile.net/proofs/artist/fc8a90e2-c12e-4147-89b6-605bbb4ccb70.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 → block OTSBitcoinBlock must exist at that height 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 0x6c17dc4a14ea472d52ae9233d81d1b8e1a53533cff09896aef5406834e483829. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/KRA350902212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e672a8f7b249c043527dc4a8ee1b72405d7c531b9c0f2ed914df1b7ae8cc5ca. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:42:45Z), 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/KRA350902213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ada73d4a1f41fb77fdf3f54b312fa2b603b57b2f566f26a418186c727c4e6b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRA350902218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6548fe64a5bed7fb4f3a811dd72db6d35fdb144b4c5c91609d840313bae9ce9. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:54:41Z), 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/KRA350902219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813635216169c1ad7493a0632619f62204f1ce7f6c46f645e591d3bd99d023c8. 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/KRA350902227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553d94aee66ff27e3b95717c50da2223a4ea834a716dfd937497a258100b0e50. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/KRA350801256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd7a36347b6a533117153117bcebf8af08a3f0716b7790a929af395a38ae308. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/KRA350801257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b64886e097fd4b44918c33a6d9d4ba0c197d4f7a590894141b380e2abf8b8c7. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/KRA350801247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917545c5b6c096e596bb9489af51530bee31acd4834bdf7ee69dfea26cdbb696. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/KRA350801250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf92575a5566a4ac833f1e31b3cb5d531038f056ebd3add99c3eb71813aa9d39. 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/KRA351001015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b91b0080642833a4c86ab46bfb4c02f8471f3c200081425fc26bfa0ec522777. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRA351001016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e02bf319d4a091545d3e2c27f91172c0f14d00fc525d81c0c9a2c27d7fd01a. 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/KRA351001017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29f585fe08d82064f59a5936442d7602df18c1d2a2c74d9fb3a597debf99c19. 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/KRA351001018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62975b505526b5c0482bb8a9ce9f8ba681f16a8bf2352adafed62f490a270507. 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/KRA351001023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a23df7ccffb235716a5de4794d1888cf999ef12a9e0fec7896ba8b2cbfc59e. 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/KRA351001025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc7ea7c352ead8d3a745697a85b0b71e5cfbf4607bf14f7eb1ced9aa02ba38d. 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/KRA351001027.
Tropique (feat. 김호연 Hoyeon Kim & 예하나 Hana Ye)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc92ee226e37f5c8cbd3c006c090e4c32511da31218689cb2bc3f4d3ccecebf2. 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/KRA351600297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda284e2d37e5d680b150883d15fbca065691ec3d81d4e5451993aa3ee482b6eb. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZ5FN1774821.