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 0x5bac01092442c15c517164ead4307124dc0ef0acac02b95049fab19744245d65. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2198a62d-7fd3-4399-8384-bc37b6f5e34c.json and https://artists.proofprofile.net/proofs/artist/2198a62d-7fd3-4399-8384-bc37b6f5e34c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Weightlifting Fairy Kim Bok Joo (Original Television Soundtrack, Pt. 2)
로봇이 아니야 Pt. 6 (Original Television Soundtrack)
Terius Behind Me Pt. 3 (Original Television Soundtrack)
Children of Nobody Pt. 6 (Original Television Soundtrack)
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 0x8575afd2800dd61d90080bfda9ead64aade55e76f9d4a852d761685c7f12e124. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:58:43Z), 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/HKI492000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c2ff88f22fa1c9cf9e11c42fba54801f82e2c67987f2f9cc65eda4cd21fed4. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRA252102360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e312a56aae5e83c17fe845977ba11bf85adbddbbc63862cb721618a22f6af5. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:58:20Z), 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/KRA252200173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53576e3af9fef637b8d3de8fe0c886cfdaa861ba8ea4008ef38e79f014a99973. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/KRD672200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844617d7cf52ab0b4b0e161fc41de58ac23b718af4c58dc288254a4034b979ac. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRA382209777.
Battle for Happiness, Pt. 5 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff0b0afb2d22aadca5515c9c89a2244cd875bd2e0ed1f43ec6b640087eda09f. 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/KRB472301107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fa2a347c14ea72e76853dc9fab43c56edc4446ca26d0c07ae1328b762239fe. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/KRA382321358.
PERFECT MARRIAGE REVENGE, Pt. 3 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa431798e7528a660a40b0a01ea4edbdd0b6c9e4a103eee0d41eb07d4d1d9099d. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRB462400165.
연애초반 (나쁜 기억 지우개 X 빈센트블루, 리밋 (Limit)) [Soundtrack]
Family by Choice (Original Television Soundtrack) Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2c9531adcc04805beb04d48735447d76c6c50da42d9538a185095a6e4810db. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRA382502842.
My Youth (Original Television Soundtrack), Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69af3ad8a8929183b33ddfb38306ba35cf3607f1fb61fc8fa39ead0804deb2d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/KRF702500219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc435fadd12b1f46403bcc85853c068ec0ec0ccb7d29a8ecfd111231a559626f. 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/KRA381500523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b1ef09d75efa9cfe53bddda628e9845fb292f079b268b4544893bd5f25bbef. 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/KRA381500529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1022f44ba25b2508eed1a20bcfc764fbed04c2043cfef740894244013a790adb. 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/QZEKE2084321.