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 0x4fe11d470e5aaf549866f2121c3fd185fd4bb940f790fa7df45f3f3d9adfcbb2. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25929645-ea3f-4906-8b4d-97258c598d50.json and https://artists.proofprofile.net/proofs/artist/25929645-ea3f-4906-8b4d-97258c598d50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
离开家那天 (第四届海洋风创作活动推荐曲)
离开家那天 - 第四届海洋风创作活动推荐曲
离开家那天 - 第四届海洋风创作活动推荐曲 伴奏