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 0x6538e7be6fa87417a497b17f3db68d46f49517b08303262e121e598a7adba701. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d811f5ea-17c4-4bb1-a407-f6e6a2fd455f.json and https://artists.proofprofile.net/proofs/artist/d811f5ea-17c4-4bb1-a407-f6e6a2fd455f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
01: Familie gesucht (Juri und Janka - Die Bärenkinder)
02: Gefahr im Zirkuszelt (Juri und Janka - Die Bärenkinder)
03: Achtung, Eisenbahn! (Juri und Janka - Die Bärenkinder)
04: Vorsicht, Löwe! (Juri und Janka - Die Bärenkinder)
06: Das Diamantenhalsband (Juri und Janka - Die Bärenkinder)
05: Nilpferd in Not (Juri und Janka - Die Bärenkinder)
08: Trubel in der Manege (Juri und Janka - Die Bärenkinder)
07: Abenteuer am Strand (Juri und Janka - Die Bärenkinder)
09: In der Schatzhöhle (Juri und Janka - Die Bärenkinder)