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 0x6f8793c00c57672d1affff5b236a9c0878d743e9bdb33a36a50a7f8237e8e009. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4fbd3e9-a65c-4147-b20b-3d9c40b50395.json and https://artists.proofprofile.net/proofs/artist/f4fbd3e9-a65c-4147-b20b-3d9c40b50395.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
星与岛屿 (广播剧《你是星河难及》主题曲)
春台雪 (广播剧《观鹤笔记·第一季》主题曲)
秩序外的奇点 (广播剧《别读博，会脱单》主题曲)