thumb|Goddess Hel and the hellhound Garmr by Johannes Gehrts, 1889 A hellhound is a mythological hound that embodies a guardian or a servant of hell, the devil, or the underworld. Hellhounds occur in
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 0xbda2fe5acb34fc4424a46c5328705b880ff63bb4af86f818a4764e6ff554ab18. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08dddbe5-f89e-499c-b908-84617b59cf93.json and https://artists.proofprofile.net/proofs/artist/08dddbe5-f89e-499c-b908-84617b59cf93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Oath Of Allegiance To The Kings Of Heavy Metal