Antara Chowdhury (born 2 June 1970, in Mumbai, India) is an Indian singer and composer. She is the daughter of the late renowned Composer and Poet Salil Chowdhury and the famous singer Late Sabita Cho
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 0x7ef4ac7a150c67d7bc2adffb4c1e9d04948f741b265155ac196a1cdf3b376fab. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2eca8c43-5a21-448e-93d8-41324c04391e.json and https://artists.proofprofile.net/proofs/artist/2eca8c43-5a21-448e-93d8-41324c04391e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ekka Dokka Tekka - Children's Day Special