Lalu may refer to: People Lalu Muhammad Zohri, an Indonesian sprinter Lalu Muhamad Iqbal, Indonesian politician Lalu Prasad Yadav, an Indian politician Shahidul Islam (Lalu), Bangladeshi 1971 Liberat
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 0x1971ce46b0a6e21bd7822ab962429b547caa16a8859f16dac88c7476f5daab7b. Chain 2 (Bitcoin): anchored in block 953911 (2026-06-16T08:03:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1827981c-164d-4c82-8bb8-ea0a03cb2ac2.json and https://artists.proofprofile.net/proofs/artist/1827981c-164d-4c82-8bb8-ea0a03cb2ac2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).