Leni Stern (born 28 April 1952) is a German jazz guitarist and singer. Early life Stern was born Magdalena Thora, in Germany on 28 April 1952. She was interested in music from an early age, beginni
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 0x6bcbddec1091848b0cbd815faead3649dd9fae69867bc1ac512b6fbaad7f08ea. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8e9de6d-c3a6-43bb-a00f-e7c8a279a4cc.json and https://artists.proofprofile.net/proofs/artist/c8e9de6d-c3a6-43bb-a00f-e7c8a279a4cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).