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 0x2b8db721115fec53fe3d6f6f106e2ec05aaa621821322d64f5b15b765d43bcc7. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c046330a-a22f-41fa-b2e1-0eb4c069714f.json and https://artists.proofprofile.net/proofs/artist/c046330a-a22f-41fa-b2e1-0eb4c069714f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Magical Legend (Original Motion Picture Soundtrack)
《斗罗大陆 Soul Land》动画原声专辑 (Music from the Original TV Series)
《美人鱼的夏天 The Summer of Mermaid》电影原声专辑 (Original Motion Picture Soundtrack)
Shadow of Nyog (Original Game Soundtrack)
SCP: Secret Files (Original Game Soundtrack)