1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7820fb09ca3615795f9f9f66d286e763a80bb8f760b2454b1b2f7ccb6cd46f3e. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d05e66bc-e8ed-4fc3-8304-6af759602839.json and https://artists.proofprofile.net/proofs/artist/d05e66bc-e8ed-4fc3-8304-6af759602839.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
United States of America (The Star Spangled Banner)
Saudia Arabia (As Salam Al Malaki as Saud)
Hark the Herald Angels Sing (Electronic)
God Rest Ye Merry Gentleman (Electronix)
Hark the Hearld Angels Sing (Small Band)
We Wish You a Merry Christmas (Small Band)
Hark the Herald Angels Sing (Carrillon Bells)
Little Town of Bethlehem (Carrillon Bells)
It Came Upon a Midnight Clear (Carrillon Bells)