Sajjad Ali (born 1966) is a Pakistani semi-classical, pop and rock singer, poet, actor, film director as well as a film producer from Karachi, Pakistan.Sajjad Ali, Ali Azmat draw big crowds at Lahore
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 0xbf3ba3d131b81914dec22939f04d8bd6d9f2a463959505486b9880d8333b71dd. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07a1561b-1634-456b-88cb-2fdf26476340.json and https://artists.proofprofile.net/proofs/artist/07a1561b-1634-456b-88cb-2fdf26476340.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.