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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167cb70334c88cf6cef81f1c406c93154377fccb1397b5ba2f0534da802a36c4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0adbbc43-8cfe-455f-a290-5a2011290156.json and https://artists.proofprofile.net/proofs/artist/0adbbc43-8cfe-455f-a290-5a2011290156.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sunday Brunch Soundtrack: Chill Jazz & Blues