Rijk de Gooyer (17 December 1925 – 2 November 2011) was a Dutch Golden Calf-winning actor, writer, comedian and singer. From the 1950s until the early 1970s, he became well known in The Netherlands as
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 0xd12ab36c3766ded23561e536752db91d2dfe6b3f4f7f490ad13a04d5dfea48f9. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/952029be-ef2e-4837-9e0d-6d73c0ef7483.json and https://artists.proofprofile.net/proofs/artist/952029be-ef2e-4837-9e0d-6d73c0ef7483.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ik Drink Hier Op Jou, Valerie / Isabella en Ilona