thumb|Song written by Buddy DeSylva George Gard "Buddy" DeSylva (January 27, 1895 – July 11, 1950) was an American songwriter, film producer and record executive. He wrote or co-wrote many popular son
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 0xb452f4a94080298f2b5b695458dea30e9fff171c4fda0810892335293d632409. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4d1944a-ff2b-4f46-870d-028f25d1ed3e.json and https://artists.proofprofile.net/proofs/artist/c4d1944a-ff2b-4f46-870d-028f25d1ed3e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
California (From "The O.C") [Piano Version]