Ezkaton is the sixth EP by Polish extreme metal band Behemoth. It was released in North America through Metal Blade Records on 11 November 2008, and in Europe through Regain Records on 20 November 200
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7e4750d7f980c8b30fd7032c7066f7665a29beb6594ba6777b9b6b5e01ce70. Chain 2 (Bitcoin): anchored in block 954025 (2026-06-17T00:32:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37ecb8b6-5d92-4b8e-be44-d2089db76c22.json and https://artists.proofprofile.net/proofs/artist/37ecb8b6-5d92-4b8e-be44-d2089db76c22.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).