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 0x11bbc5c7e2d770e490b833b3d542c269e3dc60db7846cbe8bcea6c6a774b91ae. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9159d4b-3fc3-4c9d-809e-548a88a6b077.json and https://artists.proofprofile.net/proofs/artist/e9159d4b-3fc3-4c9d-809e-548a88a6b077.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Streets So Cold (feat. Bad Boy SS, Demo, Cazzi, Young ELL & Nicoleezy)