Imperial Doom is the debut album by Florida death metal band Monstrosity. It was released on May 26, 1992, through Nuclear Blast. The album sold 40,000 copies worldwide and received excellent ratings
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 0x4075db14ea3c937446201b6315489d1272366485b25338381b414b3a0fb2ff09. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fde48c4d-544a-41a1-9907-be97ec2cca89.json and https://artists.proofprofile.net/proofs/artist/fde48c4d-544a-41a1-9907-be97ec2cca89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).