Jahid (Arabic: جاهِد jāhid) is an Arabic name from the word which means "effort, strive" or "endeavour" and stems from the Arabic verb jahada (Arabic: َجَهَد) "to do effort to get something; be labori
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 0x0cc8a3e1d0bb1140b7f0010e2f3fa32795e3b749b66d055a8c50fc7e7d05bea5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77b0a154-616b-463c-bbea-7cf956a1c7aa.json and https://artists.proofprofile.net/proofs/artist/77b0a154-616b-463c-bbea-7cf956a1c7aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).