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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bd8c1392ab4f0b087a594fcedbfe604a8398fdc0010e47b5e9624493fa3168. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4294061-e00e-4ae2-8747-be72419fee40.json and https://artists.proofprofile.net/proofs/artist/e4294061-e00e-4ae2-8747-be72419fee40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Calliope House / Star Above the Garter / Star of Munster
The Landing Field / Lark in the Morning / Silver Spear
Road to Lisdoonvarna / O'Keefe's Slide / Swallowtail Jig
I'll Walk Beside You / Cherry Tree March