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 0x3d56d4a14353bc49cd2a1f9088aee94696146137f383e3bb90d50aa767d14329. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa3de0dc-dac9-47d4-acf8-e9e845b3a111.json and https://artists.proofprofile.net/proofs/artist/aa3de0dc-dac9-47d4-acf8-e9e845b3a111.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
막돼먹은 영애씨 시즌 16 (Original Television Soundtrack), Pt. 19
Ugly Miss Young-ae Season 16 (tvN DRAMA) OST Part.19
Love, Happy Memories (Original Soundtrack), Pt. 1
Selection: The War Between Women (Original Television Soundtrack, Pt. 3)
아름다운 남자, si bel homme (Original Television Soundtrack) Pt. 2
대박부동산 (Original Television Soundtrack) Pt. 6
대박부동산 (Original Television Soundtrack), Pt.6
3.5교시 (Original Motion Picture Soundtrack) Pt.5
PERFECT MARRIAGE REVENGE, Pt. 4 (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 → 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 0x94796ac044e6119d597a05a3db1883dd4376b2ad57c3a2c4e48959195c3e9f24. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/KRNAR2357182.
PERFECT MARRIAGE REVENGE, Pt.4 (Original Television Soundtrack)