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 0xe8c99c69857c3b20ffd702e2cd36c3f7c4a34494cbd17654be8ab6cc16c79b7f. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b14c00a1-7150-4888-a88b-43d35e58873e.json and https://artists.proofprofile.net/proofs/artist/b14c00a1-7150-4888-a88b-43d35e58873e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
만화가의 사려깊은 고양이 - Stormy Monday Mix Version
만화가의 사려깊은 고양이 Cartoonist's Cat - Stormy Monday Mix
I Like It Hot (Original Motion Picture Soundtrack)
I Like It Hot (Music from the Original TV Series)
Shocking Pink Rose - So long DJ Kan-G mix Version
The Mystery of KK Island (Original Television Soundtrack)
Wonder World (feat. Yi Sung Yol) - Trailer Edit Version
Mr. Herman (The Greatest Comedian Ever) (With Miki)
Wonder World (feat. Yi Sung Yol) - Depeche Bowie Mix Version
Que sera sera (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 0xb6af9ab4e364f08ee8dd4238e2706812036a4b6ff972bfd1de67feb57308ea6f. 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/QZEKE1926957.