H2, H02, or H-2 may refer to: Arts and media Armenia 2 (H2), a private television company broadcasting in Armenia and Nagorno-Karabakh H2 (A&E Networks), the rebranded name of the former channel Hi
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 0xcc4acaaf3beaf931201c4d5d72ea2f63be61724fbc82c3f54ab4e9dfc4572e8a. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22ef50fb-c266-4db2-bb15-8ba4fae0a0f0.json and https://artists.proofprofile.net/proofs/artist/22ef50fb-c266-4db2-bb15-8ba4fae0a0f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).