KILLmatic is the second studio album by American hip hop collective Demigodz. It was released on March 5, 2013, via Dirty Version Records. Recording sessions took place at HeadQcourterz Studios in New
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 0x02940833ead5a54f0cb504687727ee1d8cab08c16b4b91e239f6dda1db5dafe4. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ae3e205-0151-4a23-abf4-fcaf47e5a590.json and https://artists.proofprofile.net/proofs/artist/9ae3e205-0151-4a23-abf4-fcaf47e5a590.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).