Sachin Singh is an Indian Nepali language musician based in Kathmandu, Nepal. He has composed and arranged music for more than 45 Nepali films. He has also composed music for numerous music albums of
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 0xb5f89314e272b11fe59b86c3cad4de2901f2d60d9033585667ae662ebe7e8b9d. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d63694c-765d-4504-b124-3644b16e98d3.json and https://artists.proofprofile.net/proofs/artist/7d63694c-765d-4504-b124-3644b16e98d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bhitariya Bhatar Rangi Ho (Bhojpuri Romantic Song)
Gaura Ke Dulha Basha Se Awat Ba (Kanwar Geet)
Pichkariyo Hamar Tur Dihalas - Holi Song
Tohara Deh Me Gudagdi Kuchh Khas Hot Hoyi
Darshan Karav Saman Ke (Bhojpuri Song 2022)
Hamar Bhai Hai Vakeel Tohar Fansi Ho Jayi
Esh Kal Bali Ke Chakkar Me Chakara Inshan Chale Gaye
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a97cb1a1ac4f893aacbe44d39972de445f10fb896f89ed9ccfbc3e1b16fcae7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCKG1200179.