Channel 9, known by its brand name El Nueve (stylized as elnueve) is an Argentine free-to-air television network based in Buenos Aires with programming centred on general entertainment. History Origi
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 0x7eb6d85bf9bcd97d548ea81e87445022e2397e1fbebf9bbdb79bdfb991ace547. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cce599d6-a8c9-4eaf-aecf-1f85d7cec773.json and https://artists.proofprofile.net/proofs/artist/cce599d6-a8c9-4eaf-aecf-1f85d7cec773.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).