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 0x1d77c01d0f361e48501703fec1a34c4f4128fe2c491ee5386ab141dfe8c2f68e. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fd95bb3-3ec3-4957-bb86-3848f707b4aa.json and https://artists.proofprofile.net/proofs/artist/1fd95bb3-3ec3-4957-bb86-3848f707b4aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Muntanella - Bös-Ch rumantsch - Galop dals Ernis
Alpentöne: Ein Querschnitt durch das Festival 2015