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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc308d8a333a897affd2085da53cb5c6e4eea54ca8ea48a02305e573a2921bced. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b022e9b7-d3b8-494b-a185-a2f117f745c7.json and https://artists.proofprofile.net/proofs/artist/b022e9b7-d3b8-494b-a185-a2f117f745c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
人來人往（音樂劇《青春之歌》主題推廣曲）
好歌30年特别版 巨星璀璨李海鹰作品大型交响音乐会 (现场版)
长城长 战斗精神篇 (孟庆云作品音乐会)