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 0x911fe556f5d3b4146a27d67a4a8893ef581191cebc4a9881dd3c04a8bc87b14a. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9caf2af-5497-41a4-90aa-f0bfb9a042e6.json and https://artists.proofprofile.net/proofs/artist/c9caf2af-5497-41a4-90aa-f0bfb9a042e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Sur Es Hardcore (La Venganza de los Mc's, Pt. 2)
Hace Cuanto Tiempo Es Hace Cuanto Tiempo