Kumaravadivel Natarajan (born 12 September 1960), known professionally as Vadivelu, is an Indian actor, comedian and occasional playback singer, having acted mainly in Tamil cinema. He has at least 29
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 0x40b9055595b5569ef21addbf4fd6b3c82409a0a6a05a6b60cf7b8678d94eed40. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af3712e7-9382-4ac6-ae9c-cca90bc39722.json and https://artists.proofprofile.net/proofs/artist/af3712e7-9382-4ac6-ae9c-cca90bc39722.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).