1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xab7890ae8e505a30859050b2ab2319aaefffa113cf948140d5967da7d4c8839d. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cefcb9bc-2da2-44af-9abf-a97cd6e5ed84.json and https://artists.proofprofile.net/proofs/artist/cefcb9bc-2da2-44af-9abf-a97cd6e5ed84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zapjevala Sojka Ptica (The Nightingale Sang)
U Stambolu Na Bosforu (In Istanbul by the Bosporus)
Kad Ja Podjoh Na Bembašu (Strolling in Bembasa)
Kraj Potoka Bistre Vode (By the Clear Water Brook)
Snijeg Pade Na Behar Na Voće (Snow Fell on the Spring Flowering)