Hilary Kole is an American jazz singer. Career Kole, daughter of 1950s Broadway performer Robert Kole, was 19 when she fronted a 12-piece band six nights a week singing Great American Songbook standa
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 0x31fb0ee6eb522d8d79ed30b4af6c82d55e1ae0b3a96c03055294c8b3356df984. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a438f683-8101-4928-ab75-19c89d2d99c6.json and https://artists.proofprofile.net/proofs/artist/a438f683-8101-4928-ab75-19c89d2d99c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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