thumb|Novotroitsk, a monotown in Orenburg Oblast, Russia A monotown (a calque from Russian , ) is a city/town whose economy is dominated by a single industry or company. This means that most employme
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 0x35eb0eec2e092fdcfb06239977df45d764a873c61b067a3908061561bd444113. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7e2d886-1a47-4077-a826-3262824f45ad.json and https://artists.proofprofile.net/proofs/artist/a7e2d886-1a47-4077-a826-3262824f45ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).