The AKM () is a 7.62×39 mm Soviet assault rifle introduced in 1959 as a lighter, more modern successor to the AK-47. Designed by Mikhail Kalashnikov, it became the most widely produced variant of the
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 0xe71aae429516f35bde7c9f11d136422a542ef7ebe8c57a4f8dc3ece0aa206439. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96b628e9-5b6b-4b75-b7f1-438405c87e5a.json and https://artists.proofprofile.net/proofs/artist/96b628e9-5b6b-4b75-b7f1-438405c87e5a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).