thumb|upright=1|Wilhelm Grimm (left) and Jacob Grimm, depicted by Elisabeth Jerichau-Baumann (1855).|alt=Oil painting depicting Wilhelm Grimm (left) and Jacob Grimm seated side by side, shown in half-
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 0xf6f5683f7b304add6a523d7083724e565a826d784e37ac3a84d5b76fb5a67525. 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/7328a644-6854-437e-8d7e-72c1f4ee48d7.json and https://artists.proofprofile.net/proofs/artist/7328a644-6854-437e-8d7e-72c1f4ee48d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Snow White and the Seven Dwarfs, a fairytale
The Story of the Youth who went forth to learn what Fear was
The Elves and the Shoe maker, a fairytale
The Wolf and the Seven Little Kids, a fairytale
The Best Fairy Tales (Brothers Grimm, Charles Perrault, Hans Christian Andersen, Oscar Wilde, Rudyard Kipling, Joseph Jacobs, Russian Folk Fairy Tales)
Snow White - Abel Classics: fairytales and fables
Rapunzel - Abel Classics: fairytales and fables