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 0xf4c5a7bbd770e38a35074741dbf5eb1e51934c2563ff4775948a7ff9969abab3. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6129811-e8d2-4515-9c7f-bea61c75b895.json and https://artists.proofprofile.net/proofs/artist/b6129811-e8d2-4515-9c7f-bea61c75b895.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Liên Khúc Người Yêu Cô Đơn - Đập Vỡ Cây Đàn
Liên Khúc Hoa Học Trò - Giọt Lệ Đài Trang
Về Đâu Mái Tóc Người Thương Remix - Remix