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 0xcc83f7de93d01712c38e73490da9dfbc85d50f6d3ed7d30dffb960b1df80de88. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22a16060-7182-4c85-b9fc-13afe0b3f4a6.json and https://artists.proofprofile.net/proofs/artist/22a16060-7182-4c85-b9fc-13afe0b3f4a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
On Every Stage - a Tribute to Dire Straits
On Every Stage - A Tribute to Dire Straits