Babu may refer to: Places Babu District, in Hezhou, Guangxi, China K. D. Singh Babu Stadium (disambiguation), various stadiums in India named after the field hockey player Babu Deity Bau (god
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 0x1344228b1856be83ac858d78befbb78d13c372a120e21a24051275b08e6f03b8. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf4eeaf8-983e-435c-951e-cd0608000990.json and https://artists.proofprofile.net/proofs/artist/cf4eeaf8-983e-435c-951e-cd0608000990.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).