Alexander Borisovich Zhurbin (Алекса́ндр Бори́сович Журби́н; born August 7, 1945, in Tashkent, Soviet Union) is a prolific Russian composer. His first success came in 1975 with a rock-opera, Orpheus a
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 0xbb6fef43bd93e48c4f995ebcb6208af9ca8267c735d6ae7c68065ed21ba28be5. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4b87c46-acf2-44ce-8c95-ab36fb926faf.json and https://artists.proofprofile.net/proofs/artist/c4b87c46-acf2-44ce-8c95-ab36fb926faf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Орфей и Эвридика (зонг-опера)/ Orpheus and Euridice (zong-opera)