Bogdan Irkük, a.k.a. BULGARI (Богдан Иркук а.к.а. БУЛГАРИ), is a Bulgarian musician/producer/DJ. He has previously performed under the name BULGARI. Biography Bogdan Irkük was born 1976 in Sofia, Bul
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 0xb0971de955f43aeeb6c88bf1824070c83865c8b5183e445c2df76db5e01f87cb. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e4a59c4-013d-473e-8125-d8bec970dc9d.json and https://artists.proofprofile.net/proofs/artist/1e4a59c4-013d-473e-8125-d8bec970dc9d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).