Bernette Epstein, known as Yara Bernette (March 14, 1920 – March 31, 2002), was a Brazilian classical pianist. Considered one of Brazil's foremost pianists of the twentieth century, she achieved inter
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 0x2505917c1e8e360591815cbe5305f6dd39d6451bd868bcd976e05b258736615a. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3449e41-216b-4b6f-8ac4-d6b49a05fde7.json and https://artists.proofprofile.net/proofs/artist/b3449e41-216b-4b6f-8ac4-d6b49a05fde7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).