Megamax was a pay television channel that was broadcast in Hungary, Romania, Czech Republic and Slovakia, owned by AMC Networks International in Central Europe. It was aimed primarily at children, 5–1
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 0x3d6903fcfc293963bab7816fcae1cf0ed957dabed56e5327d379b1d89bd6abe2. Chain 2 (Bitcoin): anchored in block 954028 (2026-06-17T01:08:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a292abe-b469-4e6e-8e26-fb68310dda8d.json and https://artists.proofprofile.net/proofs/artist/3a292abe-b469-4e6e-8e26-fb68310dda8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).