Surjit Bains Bindrakhia (born 15 April 1962 – 17 November 2003) was a singer from Punjab, India. He was recognized for his distinctive voice and hekh, a singing technique where a note is held continuo
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 0x5ededb4f88df6e08154f5b64998c41a3922fade1042e32d0afd169a61746fbd5. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f292483-88ec-49cb-8d91-46ad4d1fba40.json and https://artists.proofprofile.net/proofs/artist/4f292483-88ec-49cb-8d91-46ad4d1fba40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).