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 0x2c5d0d46f000749badcac1498ec251afcd90f7f24043d9d1c354b829e03a9a78. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55359b18-d76f-4824-8c28-67c25d38c6d2.json and https://artists.proofprofile.net/proofs/artist/55359b18-d76f-4824-8c28-67c25d38c6d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Weil Tiger keine Affen sind! (Jeder ist begabt, talentiert und besonders auf seine eigene erstaunliche Art und Weise. Das Bilderbuch für Kinder.)
Japan True Crime (Wahre Verbrechen Echte Kriminalfälle)