Mozy () was an online backup service for both Windows and macOS users. Linux support was made available in Q3, 2014. In 2007 Mozy was acquired by EMC, and in 2013 Mozy was included in the EMC Backup
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccad2203a7618cafd338b9657591eca3a262b7a4b576a10c0c8ba6f9249d3536. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd843fdf-a545-4c0c-8bfe-85db3253f3db.json and https://artists.proofprofile.net/proofs/artist/bd843fdf-a545-4c0c-8bfe-85db3253f3db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).