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 0xd2dbb02ccbdf1191c01b55e3c33cd5547cc8ac00b12259f24dbbe17901decf40. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b98ce228-29e5-4cc7-a1ad-fbdc0e532d0c.json and https://artists.proofprofile.net/proofs/artist/b98ce228-29e5-4cc7-a1ad-fbdc0e532d0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fräulein Hatschi: Ich komme bald zur Schule
Fräulein Hatschi: Besuch von der Weihnachtsfee
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