thumb|Walter Giller with wife Nadja in 2009 Walter Giller (23 August 1927 – 15 December 2011) was a German actor. He was very successful in the 1950s and 1960s, when he was often seen as a comedic lea
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 0x9142492f25dee3f40e75b0eddbad84eeece480893cb25e467f14d390e11b2171. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35fa7be8-da69-4cce-b9b9-a0b8bc30ad7a.json and https://artists.proofprofile.net/proofs/artist/35fa7be8-da69-4cce-b9b9-a0b8bc30ad7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).