Nanowar of Steel (stylised as NanowaR of Steel by the band) is an Italian comedy heavy metal band. Their name is a pun on the metal bands Manowar and Rhapsody of Fire, and represents their tendency to
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 0xe8e717c431094c8aab55f89bd7877d7ab7ea86ce6d8a02af496fd050b94945a4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5e1fc44-bf7e-4bcf-85d6-508063d1afc1.json and https://artists.proofprofile.net/proofs/artist/e5e1fc44-bf7e-4bcf-85d6-508063d1afc1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).