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 0x11f3f7844d14c448ed74acb8d6590eb60e747ee952abbd8e91a784453ba0ad03. Chain 2 (Bitcoin): anchored in block 953932 (2026-06-16T11:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f0e8aea-bff5-45d0-a4a3-54ff2757b064.json and https://artists.proofprofile.net/proofs/artist/1f0e8aea-bff5-45d0-a4a3-54ff2757b064.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Protagonist – Bonus Edition (Original Video Game Soundtrack)
The Protagonist (Original Video Game Soundtrack)