Masterpeace is the sixth studio album by American heavy metal band Metal Church released on July 22, 1999 via Nuclear Blast. It features the return of vocalist David Wayne, absent since The Dark (1986
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x365aca326a74ddd99847848c8fac8ba5c782aa72103877a26ef37d7d39c856b1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cdc4238-49a4-4e32-ad1e-47d4a906fe6d.json and https://artists.proofprofile.net/proofs/artist/4cdc4238-49a4-4e32-ad1e-47d4a906fe6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).