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 0x9509812bfb58d78803d48b0fb858ea991b5bf1bc9fc0f5f85b61c56860dd6170. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51b248e8-b15c-4a53-ad2f-bc5ce9185e29.json and https://artists.proofprofile.net/proofs/artist/51b248e8-b15c-4a53-ad2f-bc5ce9185e29.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
一天一個樣 (20世紀中華歌壇名人百集珍藏版)
兒女本色 (八集電視劇《沁源圍囤戰》片尾曲)