Vladimir M. Yesipov (Владимир М. Есипов) (fl. 1960s) was a Russian conductor active during the 1960s and 1970s. He conducted a Tchaikovsky concert in Beijing in 1960.Beijing Zhoubao 3, 1960 "At a spe
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 0x2887e0b4453488a332940f6b05c054632b2023f0c1838211742893034b6439bc. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5665cfe0-6085-4096-8d26-5604137b4d32.json and https://artists.proofprofile.net/proofs/artist/5665cfe0-6085-4096-8d26-5604137b4d32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).