Nikolai Alekseyevich Slichenko (; 27 December 1934 — 2 July 2021Умер народный артист СССР и худрук театра "Ромэн" Николай Сличенко ) was a Soviet and Russian singer, actor and chief director of the Ro
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 0xdac88bf68aa444a7a6fdcd97ad902d18c4a1a0f954fe952b1b8d121943ebc818. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/610f045d-046e-4625-bfc6-6b0f7c1e7be2.json and https://artists.proofprofile.net/proofs/artist/610f045d-046e-4625-bfc6-6b0f7c1e7be2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).