thumb|left|upright|The painting's obverse (Cleveland) The Dead Lovers, also known as The Rotting Pair, is a circa 1470 painting by a German Gothic artist, probably from Ulm or more generally from Swab
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 0xb10a4fe8c6c5d354d4e1ea959f79b05e54114f96a46bdfe529357f5c8fc2c75c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d73abd4-fb78-4ec4-b68c-ac57504f354d.json and https://artists.proofprofile.net/proofs/artist/6d73abd4-fb78-4ec4-b68c-ac57504f354d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It Could Be Something Wonderful / Es muss was wunderbares sein