Zep or ZEP may refer to: Zep (cartoonist) (real name Philippe Chappuis), the creator of comics character Titeuf Zep, Inc., cleaning products company Zeaxanthin epoxidase Jo Jo Zep of Australian ba
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 0x0c5534b590f0b0412e3ec9aabcc08edf0fb7ced092560efa79a1d7862b0fe8e4. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20cba70c-106d-4c9d-86c4-b5eedcd33c3d.json and https://artists.proofprofile.net/proofs/artist/20cba70c-106d-4c9d-86c4-b5eedcd33c3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).