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 0x368639cfb9d93ca463b69310e03b5dac6f0794191623ebe90b6db1727f0d66be. 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/1285b49b-f055-48e4-b084-815f3c10cee5.json and https://artists.proofprofile.net/proofs/artist/1285b49b-f055-48e4-b084-815f3c10cee5.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 0xd37beaf2033cbe7ddc7cbc43bcbce53ac3c67d17de47b1c1d094dd428b7413e3. 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/KRA381801165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66340d9a350b08b5d34703968819b2b0795e2bf02f393ebf0afe36eebcf38f3. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/KRE701800605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72afd039149699375373a5601047c306881a752b338ea3777c3ac1e00d1d0848. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/KRE701800607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e102aee02594b6c69da22cf47091cb8e918799614cf80307ec4f059ddd5d7da. 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/KRE701800610.
My Strange Hero Pt. 7 (Original Television Soundtrack)
My Strange Hero (Original Television Soundtrack) Pt. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ce03318656abdf993caddaaff8a61b4718ba71649bfb4830b86356366c4882. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZEKE1842748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cefca7e79953bebee5f10dbc1ac568f490e1e9ef3553e91fcc8cf87be536b7. 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/KRA381900494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4459d9e48b4f92ccd7925de31e72e5fd1ed10ecd39525d16b1f1245871dc025. 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/KRE701900046.
When the Camellia Blooms 동백꽃 필 무렵 (Original Television Soundtrack), Pt. 3
When the Camellia Blooms (Original Television Soundtrack), Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c79e3741b2988de0a3449c4fd2d3a5ee62cab41c8c5879bc8162605873523c. 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/KRE701900068.
Meow the secret boy (Original Television Soundtrack), Pt.6
Meow the secret boy 어서와 (Original Television Soundtrack), Pt.6
Meow the secret boy (Original Television Soundtrack) Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d21f3fd63f9b64b55096f04310e75b044a40d16477e65ec7b004487de529655. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/KRMIM2008073.
HEART SIGNAL 3 (Original Television Soundtrack)
Men Are Men (Original Television Soundtrack), Pt.3
Was It Love?, Pt. 8 (Original Television Soundtrack)
Was It Love? Pt.8 (Original Television Soundtrack)
Was It Love? (Original Drama Soundtrack, Pt. 8)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac830d1039e346a061a343ce92960160ecf3bbf041ff0c24fbbad514bc42f6a. 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/KRE702000021.
Distance (Lovestruck in the City OST Part.12)
Lovestruck in the City (Original Television Soundtrack) Pt.12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08a09e9a540cf6edde0f713ec3afdb21c8ef416550316737df57e41ff94fd43. 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/KRMIM2105551.
The Heavenly Idol (Original Television Soundtrack), Pt.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de63c39892aa18fd7c7ad168761a03a6969df5d72dfca74a67298d34f1b0afa. 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/KRMIM2335523.
DNA Lover (Original Television Soundtrack) Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a664b2a22183c38db372c1cde8938062e644f041a034f719921bafd71ba05c1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRE702400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a5838847d64701676535d7e599ec743e144fdfb68dc9c4632f28105d031c35. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:51:38Z), 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/KSB022502391.