Gurmeet Bawa (18 February 1944 – 21 November 2021) was an Indian Punjabi language folk singer. She was known as Lambi hek di malika () for her long hek () that she could hold for about 45 seconds. She
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 0xc2b550f6b7cdeb6804429fea62106deff62e278c26b871e19372dce59d90923c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f21c444a-ae04-4114-93a1-7d2354599fb0.json and https://artists.proofprofile.net/proofs/artist/f21c444a-ae04-4114-93a1-7d2354599fb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
THE WORLD ROOTS MUSIC LIBRARY: インド/パンジャーブの叙事詩～グルミート・バワ