Kathryn Grayson (born Zelma Kathryn Elisabeth Hedrick; February 9, 1922 – February 17, 2010) was an American actress and coloratura soprano. From the age of 12, Grayson trained as an opera singer. Sh
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bc0f17f2349cfe8d232da2fac56d9b3eb574c2ed71ed18f522d9f1704d468f. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a200331e-36ea-4938-8768-3391a7a2fc19.json and https://artists.proofprofile.net/proofs/artist/a200331e-36ea-4938-8768-3391a7a2fc19.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kiss Me Kate (Original Motion Picture Soundtrack Compilation)