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 0xa27b1989e001d92e8ce8854b0ede7aafb03ebe5beff88e0d456704578093d9cf. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5f14e4f-37bd-4b79-a2a4-883f9ae6fbb9.json and https://artists.proofprofile.net/proofs/artist/b5f14e4f-37bd-4b79-a2a4-883f9ae6fbb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Overground - Stanny Abram Abracadabra Remix
Overground - jUANITO (aka John Aguilar) & Rio Dela Duna Remix
Barcelona 2016 (Compiled by Chus & Ceballos)