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 0x7d596a835f2a1273c458855ec556921db66ca3a32a6b8f0228e4f74467a090bb. 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/3989f161-cf5c-4efc-8573-9ee9459ccd41.json and https://artists.proofprofile.net/proofs/artist/3989f161-cf5c-4efc-8573-9ee9459ccd41.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
假如时光能停在那一天 (小琢女声DJ苏平版)
别人的花不贪别人的情收好（姐妹花组合）