Shashwat Singh is an Indian playback singer who primarily works in the Hindi film industry. Singh made his playback singing debut with the song "Wat Wat Wat" from the 2015 film Tamasha. Since his debu
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 0x2b19a7e104cc2d73501a3cc9e5db87d5613e2e3a1dab9609ad7b8fbfe116d348. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ca10ea2-decd-4d11-bdb6-ad0890f1b336.json and https://artists.proofprofile.net/proofs/artist/9ca10ea2-decd-4d11-bdb6-ad0890f1b336.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).