Nocturnal Breed is a Norwegian blackened thrash metal band, formed in Oslo in 1996 by singer/bassist Kenneth Svartalv (S.A. Destroyer) and guitarist Sven Atle Kopperud (Ed Damnator). Musical style
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 0xbc7e9cf1b7615f1fd07a2610f66bc25f39e10ef5f3e5e988348082cd51c5fbea. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5642b798-31d6-481f-8d95-cb0c69dc6716.json and https://artists.proofprofile.net/proofs/artist/5642b798-31d6-481f-8d95-cb0c69dc6716.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Face Your Aggressor (25 Years in the Bunker)
Thrash Metal Hate Saw (The Last Act of Terror)