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 0x563279a292171abe52d51eb71f4fee549be53078f3bbf2d542ff5928a1373950. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2faf9423-4d91-47fc-a48a-296268de3669.json and https://artists.proofprofile.net/proofs/artist/2faf9423-4d91-47fc-a48a-296268de3669.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Kis Tarhan Zainab e Muztar Ne Woh Manzar Dekha
Maa'n (Kaun Samjha Hai Martaba Maa'n Ka)
Baad Mere Zulm Yeh Mola Py Dhaya Jaye Ga
Maqtal e Hussain (Haye Lakhoon Ne Mil Kay Mara Hai)
Be Badan Sar Ro Rahe Hain (Safar e Sham)
Roti Ankhon Se Ye Sab Daikh Rahi Hai Zahra
Jungle Main Bhare Ghar Ko Luta Ayi Hai Zainab
Khanjar Se Mere Bhai Ko Mara Hai Bar Bar
Haye Abbas Haye Abbas Jalte Khaimon Se Sada Ayi Sar e Karbobala
Main Tumko Sambhalongi Tum Akbar Ko Uthana