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 0xa1e0e80e9201bd3f7bef9d6c6f4a4065ca44d388e1742fa4d88b47287a7987c2. Chain 2 (Bitcoin): anchored in block 953706 (2026-06-14T23:14:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b719be6-1d35-4c5d-99a2-47a1f3b0f557.json and https://artists.proofprofile.net/proofs/artist/7b719be6-1d35-4c5d-99a2-47a1f3b0f557.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
계약우정 (Original Television Soundtrack) Pt. 1
계약우정 (Original Television Soundtrack), Pt. 1
Love Interference Season3 (Original Television Soundtrack), Pt. 14
누가 뭐래도 (Original Television Soundtrack) Pt. 2
누가 뭐래도 (Original Television Soundtrack), Pt. 2
Love Interference 2024 (Original Television Soundtrack), Pt. 9
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 0x8e6c41e4b4f7d2f77f18ee0bf22ef1e03fea638e2991b1202fb28da42e700010. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/KSB012337573.
Just the Way It Is (Joo Yeahin X Forest Notes)