Soof is a 2013 Dutch comedy film directed by Antoinette Beumer. Plot Cast Lies Visschedijk as Soof Fedja van Huêt as Kasper Dan Karaty as Jim as Sascha Anneke Blok as Hansje Chantal Janzen
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 0xd97585071d604e486f1f88483fa1aa486b6d19c258a0ba7ce935adb16d1cd27b. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfd4ec20-d0c6-4c30-b41a-44585f52e99b.json and https://artists.proofprofile.net/proofs/artist/cfd4ec20-d0c6-4c30-b41a-44585f52e99b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
whispers from a free world (feat. Moo Latte)